1 10 13 https://theses.otagogeology.org.nz/files/original/865f30d7e3a8ddff277548c6269341ae.pdf 829f8ef3b172c5c6dbb8dcff0aad791c Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Geology theses OU Geology thesis Thesis or dissertation completed by University of Otago Geology students Location WKT (WGS84) The location stored in WKT (WGS84) format POLYGON ((173.109448131000022 -42.494218869999941,173.10940628000003 -42.467210611999974,173.109375292000095 -42.447175480999931,173.109345261000044 -42.427729570999929,173.109322841000107 -42.413193595999985,173.133586575000095 -42.395164377999947,173.160186303000046 -42.395132881999984,173.170023717000049 -42.395119675999979,173.170199381000089 -42.465199514999938,173.170204262000084 -42.467142211999942,173.170208786000103 -42.468942759999948,173.170226889000105 -42.476144942999952,173.150358958000083 -42.490902601999949,173.145942598000033 -42.494181613999956,173.142428321000125 -42.49418570499995,173.109448131000022 -42.494218869999941)) Author last name Last name of the Author Worley Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? MSc Advisers Who supervised/advised this student Landis, C.A. Abstract The Abstract for this thesis Basement geology of the Arnuri Range, North Canterbury, between the Hope Fault and the Clarence River comprises Torlesse metasediments and associated slivers of melange and seafloor volcanict..., which together are ascribed to the Pahau subterrane (Bishop et al. 1985). Detailed mapping and lithological analysis reveals three distinct Torlesse sandstone- argillite fades on the basis of sand: mud ratios and individual bed thicknesses: Lithofacies I; >5: 1(sandstone: argillite) produced by high velocity grain flow or a high density turbidity current, Lithofacies II; 5 : 1 to 2 : 1 produced by classic turbidity currents, Lithofacies Ill; < 2 : 1 produced by low density turbidity currents. These turbidites accumulated in mid to outer regions of submarine fans at the base of the submarine slope at a convergent continental margin. Fades associations reflect a progradational fan that sloped to the west towards it's sediment source. Continued subduction at the continental margin resulted incorporation of the submarine fan and slivers of oceanic crust into an accretionary prism complex, and eventual regional metamorphism of zeolite to prehnite - pumpellyite grade. Compressive tectonics produced two phases of coaxial deformation (D1 and D2), while melange formation resulted from decoupling of sediments with subduction and related shearing during Dt. Ancient thrust faults that now dip steeply to the east and strike northeast - southwest were formed during initial incorporation into the prism. A change from compressive to strikeslip tectonics resulted in a third phase of deformation (D3) and provoked much of the faulting in the Marlborough area, including the major and active faults in the present area (i.e. Hope Fault, Tinline Fault, Lyford Fault). Modification of drainage patterns of streams and rivers traversing the Hope Fault illustrate substantial recent and continuing dextral transcurrent movement along the fault. Comparisons of sandstone geochemical and petrographic signatures with other studies suggest a Lower to Middle Jurassic age for the Amuri Range rocks, placing them between petrofacies 4 and petrofacies 5 of MacKinnon (1983), and indicate that the source was possibly a Continental Island Arc, contributing a dominant acid plutonic component with evidence of important contemporaneous intermediate to silicic volcanism and substantial reworking of older uplifted Torlesse. Geochemical analyses of pillows and flows from the Green Volcanic Association indicate they have N - MORB affinities and it is suggested that they represent peeling of the uppermost basaltic oceanic crust .· subduction beneath the accretionary prism and eventual underplating beneath the complex as opposed to incorporation at the toe of prism. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Amuri Range Thesis description Number of pages, maps, CDs, etc. 109, 6, 2 leaves : ill. (some col.), maps (some col.) ; 30 cm. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context 1996Worley Creator An entity primarily responsible for making the resource Worley, Steven R., 1966- Date A point or period of time associated with an event in the lifecycle of the resource 1996 Title A name given to the resource Amuri Range geology : Torlesse rocks from the Hope Fault to the Clarence River Subject The topic of the resource Sedimentology petrology sandstone structure Torlesse https://theses.otagogeology.org.nz/files/original/e9b0a06053e6294a160b4abad0c8dba9.pdf cce394a689c53c28aec609f6e427b0be Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Geology theses OU Geology thesis Thesis or dissertation completed by University of Otago Geology students Location WKT (WGS84) The location stored in WKT (WGS84) format POLYGON ((169.74489821639952 -46.033782700301579,169.657971508603964 -45.927319143786093,169.424764290524678 -45.91989527551047,169.433624002631973 -45.837580823681222,169.435190363778247 -45.770946238166516,169.583100522547767 -45.778566865628299,169.581464683087376 -45.835317682977085,169.771643343905538 -45.902417347313374,169.859477104906347 -46.014177408168649,169.872643170602089 -46.035257488378171,169.74489821639952 -46.033782700301579)) Author last name Last name of the Author Walrond Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? MSc Advisers Who supervised/advised this student Sibson, R. Abstract The Abstract for this thesis The Tuapeka Fault Zone (TFZ) is a complex NW-SE zone of brittle deformation, extending from Waitahtu1a Gully to Beaumont, in southern Otago. Good exposures of individual faults occur within this zone, the best being at Gabriel's Gully Historic Reserve, and at Waitahuna Gully. Spectacular fault planes, exposed by the removal of the hanging wall Blue Spur Conglomerates (BSC) (late Cretaceous) during former mining operations can be seen at these two localities. The fault plane exposed at Gabriel's Gully (Gabriel's Gully No 1 Fault) extends down-dip for up to 200m, along a strike length of 400m. TI1is offers excellent exposure of a variety of brittle fault rocks. The fault core is dominantly composed of an extremely fine grained "brown ultracataclasite" unit, 20 cm thick with minor intercalated clay rich (green ultracataclasite) and carbonate cemented ultracataclasites (white ultracataclasite). In the footwall adjacent to this ultracataclasite "pavement", is a damaged zone (approx. Sm thick) comprising variably deformed and chloritically altered schists, calcite cemented fault breccias, derived from the schist and minor cataclasites. Surprisingly little deformation has occurred in ilie hanging wall BSC which shows no evidence for significant cataclasis, although numerous faults sub-parallel to the fault plane do occur within it. Porphyroclast mineralogy of t~e ultracataclasites (quartz-albite-epidote-titanite) largely mirrors that of the adjacent protolith1 which comprises Caples Terrane basement schists of pumpellyiteactinolite facies. These make up both the footwall and hanging wall lithologies, with additional minor BSC occurring in the hanging wall. In addition, several secondary minerals, useful for temperature estimation, occur in the fault rocks. These are interpreted to have been formed both by direct fluid introduction (calcite, quartz, chalcedony, stilbite, pyrite) and by alteration reactions of protolith minerals (smectite derived from albite alteration), in a low temperature ( <100"C), fault related hydrothermal system. Secondary minerals occur as veins (calcite, stilbite, pyrite, chalcedony) as well as within the matrix of the fault rocks (smectite, pyrite), attesting to significant levels of fluid flow. Microstructural shear sense indicators within the ultracataclasites indicate that the fault has experienced two separate phases of movement, an earlier normal dip-slip phase (late Cretaceous), followed more recently by a reverse dip-slip phase (Tertiary). Slickensides are rare, but occasional frictional wear striae on the ultracataclasite surface, as well as distributed shears with quartz fibre growths in the footwall schists, suggest predominantly dip-slip motion. Microscopic shear sense indicators are best developed in clay rich lensoidal domains (green ultracataclasites) which occur within the more common quartzofeldspathic brown ultracataclasites. The most reliable of these indicators are arrays of R1 Riedel shears with associated oblique P-foliations, similar to structures commonly observed in clay gouge shearing experiments. Additional microstucturnl shear sense indicators include fault parallel Y-shears, rotated porphyroclasts and vein microfaults. Outcrop scale field evidence from around the study area also suggests that the TFZ has experienced reversal. The Blue Spur Conglomerate makes up the hanging wall lithology at several localities (Gabriel's Gully, Waitahuna Gully, Wetherstones, Forsyth), strongly suggesting that the fault was ex tensional during the deposition of the conglomerates (late Cretaceous). Conjugate normal faults at Big Hill provide further evidence for extensional faulting. Field evidence for the reverse phase of movement is common. At Wetherstones, a well exposed NE dipping reverse fault has emplaced basement schists over ilie BSC. In addition, spectacularly developed tight macroscopic folds with steeply dipping axial planes occur at Wetherstones dump. These strongly suggest a compressional regime. At Gabriel's Gully Historic Reserve the BSC dips into the fault plane at an angle of 30". This is interpreted to b.e a drag effect resulting from reverse faulting. Mesoscopic kink folds, developed in the chlorite altered schists of the·Gabriel's Gully No 1 Fault, also suggest compression, as do patterns of calcite veining. The BSC (late Cretaceous) consists mainly of quartz-greywacke-schist conglomerates in a silly, smectite-rich, blue-green matrix which oxidises to a brown colour upon weathering. Subordinate horizons of sands, silts and coal horizons also occur. The deposit is interpreted to have been deposited by a major river system operating in late Cretaceous times. Paleocurrent data indicates a source from ilie SW, which is consistent with clast provenance. An additional minor source from the NE is also inferred. Occurrences of BSC are typically found preserved only in fault angle depressions of the TFZ, but the deposit was presumably once far more extensive. The BSC is auriferous and was the subject of intensive gold mining operations last century. Gold samples obtained from the deposit display spectacular evidence for secondary precipitation, and are closely associated with pyrite and smectite. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Otago Thesis description Number of pages, maps, CDs, etc. v, 197 p. : ill. (some col.), maps (some col.) ; 30 cm. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context 1996Walrond Creator An entity primarily responsible for making the resource Walrond, Mark Tapio, 1970- Date A point or period of time associated with an event in the lifecycle of the resource 1996 Title A name given to the resource Tuapeka fault zone : brittle faulting and sedimentation, Otago, New Zealand Subject The topic of the resource Structural geology Sedimentology Gabriels Gully gold Laurence structure Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Geology theses OU Geology thesis Thesis or dissertation completed by University of Otago Geology students Location WKT (WGS84) The location stored in WKT (WGS84) format POLYGON ((170.704186770864737 -45.451423582551158,170.705398849511198 -45.411109423668385,170.76832666057058 -45.41235687373964,170.767810932200973 -45.452238735672843,170.704186770864737 -45.451423582551158)) Author last name Last name of the Author Walker Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? BSc(Hons) Advisers Who supervised/advised this student Lee, D. Department The department where the student is studying primarily. Edinburgh Geology Named locality Named locality describing the field area location. Kakanui Mountains Thesis description Number of pages, maps, CDs, etc. 60 leaves : ill. (some col.), photos, maps (some col.) ; 30 cm. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context 1996Walker Creator An entity primarily responsible for making the resource Walker, Colin A Date A point or period of time associated with an event in the lifecycle of the resource 1996 Title A name given to the resource The Geology of the South-Eastern Foothills of the Kakanui Mountain Range, South island, New Zealand (Scottish student) Subject The topic of the resource Map structural geology Field mapping Kakanui Mountains https://theses.otagogeology.org.nz/files/original/baa08ce58f67b1d1831d040d02d17f4d.pdf 1aacea887e74a3dabd8a94ca157aef6b Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Geology theses OU Geology thesis Thesis or dissertation completed by University of Otago Geology students Location WKT (WGS84) The location stored in WKT (WGS84) format POLYGON ((172.899711475006455 -40.939966285901228,172.962260504843499 -40.939527030575661,172.960664041409359 -40.981475234818269,172.928561664796234 -41.00195737752037,172.899617958736144 -41.001697463325236,172.899711475006455 -40.939966285901228)) Author last name Last name of the Author Sarll Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? BSc(Hons) Advisers Who supervised/advised this student Cooper, A.F. Abstract The Abstract for this thesis This thesis reports the geology of Rameka Creek, northern Pikikiruna Range, northwest Nelson, part of the Takaka Terrane of the Western Province. The Upper Ordovician, Mount Arthur Marble, exhibits evidence for at least two, approximately coaxial, pre-late Devonian deformational phases. The timing of these deformation events is constrained by the intrusion of the Rameka Gabbro which cross-cuts F2 folds. Orientation of calc-silicate segregations (Fl) within the marble define a NE-SW trending, gently plunging, symmetrical synform with the east limb overturned relative to the west limb. Diopside-tremolite bearing segregation seams within the marble are noted, but due to a limited areal distribution, are not thought to be representative of the marble as a whole. A Paleozoic regional greenschist facies recrystallisation is favoured, with the tremolite-diopside bearing segregation seams being related to a Cretaceous, amphibolite facies thermal overprint associated with adjacent granitoid emplacement. Intruding the Mount Arthur Marble at Rameka Creek are two bodies (eastern and western) of late-Devonian hornblende-plagioclase gabbro. This rock, named the Rameka Gabbro and dated at 367 Ma by earlier workers, has been subdivided into three petrographic types on the basis of amphibole texture and petrology; (1) gabbros with interstitial amphiboles; (2) gabbros with oikocrystic amphiboles; and (3) microgabbros. Microgabbros, which outcrop exclusively in the eastern pluton, exhibit significantly different mineral chemistries compared to other types. Generally, amphibole compositions are characterised by lower Ti and Si contents , while feldspars are more sodic. Pods of Ti-rich garnet up to 1 m in diameter occur within the Rameka Gabbro. Two different types of colour zonation are present within the garnet, both of which are due to variation in Ti concentration. Study of the contact between Rameka Gabbro and Mount Arthur Marble reveals the presence of well-defined, monomineralic zones within the contact. XRF analyses of samples from within the skarn indicate that metasomatic diffusion of components across the gabbro-marble contact has occurred. Previously undocumented, stock-like bodies of granitoid rock have been mapped in the eastern part of the field area. These bodies intrude both the gabbro and marble and hence clearly post-date both units. On the basis of geographic and broad geochemical similarities, these rocks are correlated with the Caanan Granodiorite, part of the Cretaceous Separation Point batholith. Some stocks of granitoid have associated mineralised, hydrothermal quartz veins. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Rameka Creek Thesis description Number of pages, maps, CDs, etc. 129 leaves : ill. (some col.), maps ; 30 cm. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context 1996Sarll Creator An entity primarily responsible for making the resource Sarll, Owen, 1974- Date A point or period of time associated with an event in the lifecycle of the resource 1996 Title A name given to the resource Rameka Creek geology : Paleozoic plutonism and structure of the Takaka Terrane Subject The topic of the resource Paleozoic Igneous petrology Structural geology plutonism Rameka Creek Takaka Terrane https://theses.otagogeology.org.nz/files/original/4f1a715847d01a72a6ac69b2966c50a5.pdf 837994dd5490f8f98c2110a087db7aed Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Geology theses OU Geology thesis Thesis or dissertation completed by University of Otago Geology students Author last name Last name of the Author Mitchell Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? PhD Advisers Who supervised/advised this student Reay, A. Abstract The Abstract for this thesis This thesis provides a detailed account of the mineralogy of alluvial platinum-group minerals (PGM) recovered from the Waiau River, Western Southland, and the south coast of the South Island, New Zealand. The study is based on observations made from thousands of PGM particles collected from six sample localities, three of which were collected as part of alluvial gold mining operations and represent concentrations from 10-1000 m3 of sediment. Pt-Fe alloy is the most common PGM recovered at all sample localities. Iridium, osmium, cooperite, braggite, sperrylite, Pt-Cu alloys, isomertieite, cuprorhodsite, and laurite are also present as detrital phases. PGM recovered from the Waiau River are the coarsest in the region (up to 1 mm). PGM recovered from other localities are significantly finer-grained (200-300 μm). Pt-Fe alloy particles exhibit a range of habits from euhedral cubic crystals to well rounded flakes. Two populations of Pt-Fe alloy are recognised on the basis of I. Fe+ Cu + Ni (at%) contents; low Fe alloy (average of I 6 at%) and high Fe alloy (average of 24 at%). X-ray diffraction studies indicate both populations have a crystal structure corresponding to native platinum (and the variety ferroan platinum). Compositional zonation related to changes in the concentration of minor elements (Type 1) or Fe (Type 2) is observed in a small number of Pt-Fe alloy particles. Euhedral, cubic or octahedral, Pt-bearing iridium is the most common IPGE alloy, followed by minor to trace amounts of hexagonal osmium. Ruthenium alloys are rare. A small number of IPGE alloy particles contain coexisting osmium and iridium(± Pt-Fe alloy). Chemical zonation is observed in one composite particle. Cooperite and braggite is characterised by extremely low Ni contents (maximum of 1.2 wt%) and an apparent compositional gap extending from 73-64 mol% PtS. Sperrylite is present as euhedral crystals with a nearstoichiometric composition. Mineral inclusions within detrital PGM range in size from <2 ~-tm - 100 ~-tm and exhibit a variety of forms ranging from euhedral, single phase crystals to rounded, polyphase aggregates intergrown''On a sub-micron scale. Two types are recognised; inclusions formed via the entrapment of crystals and/or liquids at the time of host formation, and inclusions resulting from exsolution. Entrapped inclusions predominate and contain an extensive mineral suite consisting of; laurite, erlichmanite, cooperite, braggite, bowieite, cuprorhodsite, sperrylite, Pt-Cu alloy, Pt-Fe alloy, kotulskite, gold, base-metal sulphides (BMS), silicates, oxides, and a number of unknown phases. Exsolution of osmium is primarily restricted to Pt-Fe alloy of the low Fe population, whereas iridium exsolves from the high Fe population. Exsolved inclusions of hollingworthite are also present in Pt-Fe alloy. Iridium hosts exsolution of Pt-Fe alloy from the high Fe population. Exsolution textures between IPGE and Pt-Fe alloys, the composition of cooperite and braggite, and the presence of primary mafic phases within silicate inclusions, suggest the majority of PGM formed at temperatures > 800 °C, and are consistent with derivation from a magmatic source via mechanical weathering. Textural associations suggest a magmatic crystallisation sequence of; osmium, iridium, laurite, Pt-Fe alloy, cooperite, braggite, cuprorhodsite, hollingworthite. The majority of sperry lite crystals and their inclusion suite may have formed in response to late stage magmatic or hydrothermal fluids. The presence of thin rims containing Pt-Cu alloy, PGE sulpharsenide, and unknown PGM developed about small numbers of Pt-Fe alloy and iridium particles record minor modification of primary mineralogy at lower temperatures, possibly during metamorphic or serpentinisation events. Apart from transport-induced changes in the morphology of Pt-Fe alloy there is no evidence to suggest modification of PGM mineralogy within the surficial environment. The present distribution of alluvial PGM suggests introduction to the middle to lower reaches of the Waiau River and dispersal by longshore currents upon reaching the coast. Differences in both the morphology and proportion of PGM recovered from fluvial and coastal localities are a result of hydraulic constraints imposed by longshore transport. The geological history suggests PGM in the Waiau River could be derived directly from a magmatic source or be recycled from Tertiary sediments or Quaternary glacial deposits. The dominance of alloy phases suggests PGE mineralisation was predominantly controlled by variation in oxygen fugacity. Extremely low Ni contents within cooperite and braggite indicate that an immiscible sulphide liquid did not play a role in mineralisation. The mineralogy of silicate and oxide inclusions suggests crystallisation from a hydrous, relatively oxidised, possibly calc-alkaline, magma. The entire PGM suite is consistent with derivation from an Alaskan-type complex, a type of ultramafic intrusion recognised from convergent plate margin settings. A similar tectonic environment is represented in southern New Zealand by the Median Tectonic Zone (MTZ). None of the numerous mafic-ultramafic bodies within the MTZ and adjacent tectonostratigraphic terranes have strong similarities to Alaskan-type intrusions. The source of alluvial PGM from southern New Zealand remains unknown. OURArchive handle The handle from the Otago University Research Archive (OURArchive) <a href="http://hdl.handle.net/10523/3670">http://hdl.handle.net/10523/3670</a> OURArchvive access level Abstract Only Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. New Zealand Thesis description Number of pages, maps, CDs, etc. 1 v. (various pagings) : ill. (some col.), maps ; 30 cm. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context 1996Mitchell Creator An entity primarily responsible for making the resource Mitchell, Mark John, 1969- Date A point or period of time associated with an event in the lifecycle of the resource 1996 Title A name given to the resource Alluvial platinum-group minerals from southern New Zealand Subject The topic of the resource Metal-ore deposits longwoods Platenum alluvial Waiau River https://theses.otagogeology.org.nz/files/original/cec601ea4128e73c0d2a56216c7b8123.pdf 670b64fa7165ea0da8ba7167b01831f9 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Geology theses OU Geology thesis Thesis or dissertation completed by University of Otago Geology students Location WKT (WGS84) The location stored in WKT (WGS84) format POLYGON ((167.355196512451954 -46.192325694983921,167.27027890815117 -46.187729948141836,167.282522347534098 -46.124394426805857,167.39508333509383 -46.078541446879093,167.517450904824813 -46.086995831322568,167.510213940033992 -46.154526774556508,167.477245631204624 -46.150075756869967,167.442022257282588 -46.14764872576491,167.415209077298613 -46.148481332413823,167.400236975368273 -46.154177271467368,167.398531336750096 -46.165883102954204,167.394850286672551 -46.176777235117925,167.384840770985647 -46.184144221616577,167.372194286617855 -46.187092973562699,167.354721192812463 -46.191944884123025,167.355196512451954 -46.192325694983921)) Author last name Last name of the Author McMurtrie Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? MSc Advisers Who supervised/advised this student Fordyce, R.E. Abstract The Abstract for this thesis This thesis describes the Eocene to Recent sedimentary sequence of the East Hump area, in the southern Waiau Basin, Western Southland. Cenozoic sedimentation in the East Hump area began in the Late Eocene with the deposition of terrestrial conglomerates and marginal marine sandstone of the Hump Ridge Formation. The Hump Ridge Formation is conformably overlain by deeper marine sandstone/mudstone interbeds of the Hauroko Formation and mudstone of the Waicoe Formation. This Eocene to Miocene sequence is unconformably overlain by the Late Miocene inner shelf conglomerate, sandstone and limestone of the Port Craig Formation, which in turn grades into the outer to mid shelf Late Miocene to Pliocene Te Waewae Formation. The following stratigraphic advances have been made: the boundary between the Hump Ridge Formation and Hauroko Formation is defined; the Hauroko Formation is divided into two members, the sandstone-dominated Breakneck Member, and the mudstone-dominated Hauroko Member; the boundary between the Port Craig Formation and Te Waewae Formation is redefined; the Port Craig Formation is correlated throughout using the lithofacies and biofacies concepts; and a new member (the Waikoau Member) of the Te Waewae Formation is proposed. These lithostratigraphic advances combined with chronostratigraphic data allow new interpretations of two areas of Te Waewae Bay coastal sediments. A chronostratigraphic map produced from foraminiferal and molluscan dating shows an Eocene to Early Miocene (Runangan to Altonian) sequence of Hump Ridge Formation, Hauroko Formation, and Waicoe Formation which youngs and thins to the south. The Port Craig Formation, which unconformably overlies these · sediments, was previously thought to be Tongaporutuan at the base, but foraminiferal dating now interprets it as Kapitean throughout. Dates from above and below the Miocene unconformity suggest it has a maximum duration of 17 million years (part of the Altonian Stage, Southland Series, and Tongaporutuan Stage). The time gap between these units increases to the south to 24 million years at J amiesons Creek, coinciding with decreasing thickness of the Waicoe Formation. The Miocene/Pliocene boundary (Kapitean/Opoitian) probably coincides with Ethological change from the Waikoau Member to the Deadwood Member in the Te Waewae Formation. A diverse macrofauna from the sandstone of the Kapitean Port Craig Formation allows biofacies correlation of outcrops in streams several kilometres apart. In contrast, the gastropod-dominated assemblages of the mudstone of the Te Waewae Formation are more uniform and include taxa which are of more chronostratigraphic ). t IV value. Fossils from both the Port Craig Formation and the Te Waewae Formatio,n are used to interpret paleoenvironment. Petrographic study of conglomerate, sandstone, and heavy minerals from the Hump Ridge, Hauroko and Port Craig formations indicate that Fiordland and cannibalised underlying sediments were the major sources of detritus. Provenance areas are narrowed using petrography, heavy minerals, previous published paleogeographic maps, and paleocurrents. Rhyolite and dacite from the Oligocene Hauroko Formation has been traced to a potential source of the Eastern Fiordland Volcanics around present Lake Te Anau. Similar clasts in the Port Craig Formation are probably reworked from the underlying Hauroko Formation as the East Hump area was surrounded by sediment sinks in the Late Miocene. Heavy minerals indicate the Brook Street terrane was a source of sediment in the Late Eocene and Early Miocene, and Southwest Fiordland was a possible source in the Late Eocene to Early Oligocene. Paleoenvironments of the sediments of the East Hump area are consistent with regional structural trends. The terrestrial to marginal marine Hump Ridge Formation (Runangan), the submarine fan complex of the Hauroko Formation (Whaingaroan), and the bathyal mudstone of the Waicoe Formation (Whaingaroan to Altonian) were deposited during the Eocene to Oligocene; thought to be a phase of oblique extension. The Miocene unconformity probably marks Middle to Late Miocene compression which caused uplift of Hump Ridge resulting in folding, faulting, and erosion of the sedimentary sequence. Back-arc subsidence allowed deposition of the shoreface to inner shelf Port Craig Formation (Kapitean) and the outer shelf Waikoau Member of the overlying Te Waewae Formation (Kapitean). Uplift in the Pliocene is reflected in shallowing to the mid shelf Deadwood Member of the Te Waewae Formation. This uplift continues to the present day, reflected by a flight of preserved Quaternary marine terraces. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Te Waewae Bay Southland Thesis description Number of pages, maps, CDs, etc. xiv, 262 p. : ill. (some col.), maps (some col.) ; 30 cm. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context 1996McMurtrie Creator An entity primarily responsible for making the resource McMurtrie, Grant Bevan. Date A point or period of time associated with an event in the lifecycle of the resource 1996 Title A name given to the resource Cenozoic sediments of the East Hump area, Te Waewae Bay, Southland Subject The topic of the resource Cenozoic geology Sedimentology basin history Foraminifera Miocene Mollusca paleoenvironment https://theses.otagogeology.org.nz/files/original/b39360faa13e0e3696e916d5d2d2e5c8.pdf f71cc1bc657192787571521a28e5f3cc Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Geology theses OU Geology thesis Thesis or dissertation completed by University of Otago Geology students Location WKT (WGS84) The location stored in WKT (WGS84) format POLYGON ((170.899321730610552 -44.796194470382638,170.901043214244709 -44.767167667201299,170.973250011884971 -44.767519719616978,170.972885250995546 -44.797048089226536,170.899321730610552 -44.796194470382638)) Author last name Last name of the Author K Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? PhD Advisers Who supervised/advised this student Fordyce, R.E. Abstract The Abstract for this thesis This thesis documents eleven specimens of Eocene turtles (Reptilia: Testudines: Dermochelyidae, Cheloniidae) and seven specimens of archaeocete whales (Mammalia: Cetacea: Basilosauridae) from New Zealand. All taxa derive from marine sediments from the New Zealand Bortonian, Kaiatan and Runangan Stages (late middle to late Eocene). The first fossil record of the family Dermochelyidae (genus Psephophorus) from the Southern Hemisphere is based on five specimens from the Waihao Greensand near Waimate in South Canterbury, and a dermochelyid humerus from the Burnside Mudstone near Dunedin. One large specimen from the Waihao Greensand is the holotype of the new species Psephophorus terrypratchetti Kohler, 1995b; other specimens are referred to this species. Comparisons with specimens from overseas show that the New Zealand Psephophorus fossils are distinctive in that keels are lacking on their secondary carapace, and primary carapace elements are more pronounced than in geologically younger species elsewhere. A cladistic analysis of dermochelyids, together with a new interpretation of the evolution of their secondary carapace, supports an early Tertiary origin for this group of marine turtles. Changes in the secondary armour during the late Pliocene to earliest Pleistocene are probably linked to a cooling world climate. The New Zealand Psephophorus fossils represent one of the earliest records of this genus worldwide. Elsewhere in the Southern Hemisphere, Eocene dermochelyids (undescribed) have been reported from Seymour Island, Antarctic Peninsula. Other fossil turtles from New Zealand include sparse non-dermochelyid material from the West Coast of the South Island and one specimen from the North Island (Kaipara Harbour, Northland). These fragments also indicate marine animals, which could not, however, be identified beyond family level. The New Zealand record of fossil turtles differs from the Australian record in that there are no terrestrial turtles reported from New Zealand, and no Tertiary marine turtles from Australia. This discrepancy may be explained by differences in preservation and accessibility of marine facies, but may also be due to insufficient prospecting work. Cetacean fossils (archaeocetes) are known from two formations, the Waihao Greensand in South Canterbury and the Mangatu Mudstone near Gisborne in the North Island. The six specimens from the Waihao Greensand are Bortonian to Kaiatan in age; they represent animals related to the dorudontine genus Zygorhiza, and an animal more than twice as large which could not be placed within a known archaeocete group. The age for the single specimen from the North Island, which is also referred to the dorudontine genus Zygorhiza, can only be given as middle to late Eocene. The La Meseta Fonnation of Seymour Island represents the nearest location frorri\vhich archaeocetes and Eocene dermochelyids are reported. Large, nondorudontine cetacean fossils from Seymour Island may represent the same taxon as the large archaeocete fossil from New Zealand. The New Zealand archaeocetes form, apart from an isolated find from early Lutetian strata in Senegal, the second oldest record for Dorudontinae worldwide, and one of very few substantiated records of archaeocetes in the Southern Hemisphere; they are seen as an indicator for an early colonisation of southern seas by archaic whales. Because most of the archaeocete specimens and all but one dermochelyid derived from Bortonian to Kaiatan greensands in the Waihao River Basin, this area was mapped in detail. A fine-stratigraphy is established for the Waihao Greensand in the study area. based on two widespread index horizons, which are used to link outcrops and to establish the relative age of the different units of Waihao Greensand as exposed in different parts of this area. A depositional model for the Waihao Greensand is given, showing that the sediment was deposited during a steady rise in sea-level under tropical to subtropical conditions; it can be correlated approximately to a middle Lutetian to middle Bartonian age. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Otago Canterbury Hawkes Bay Thesis description Number of pages, maps, CDs, etc. xv, 359 leaves : ill. (some col.), maps (some col.) ; 30 cm. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context 1996Kohler Creator An entity primarily responsible for making the resource Kohler, Richard. Date A point or period of time associated with an event in the lifecycle of the resource 1996 Title A name given to the resource Eocene turtles and whales from New Zealand / Richard Kohler. Subject The topic of the resource Paleontology Sedimentology Canterbury Foraminifera Mammalia Otago Reptilia Systematics https://theses.otagogeology.org.nz/files/original/b12dbe798dd42434922a6a751266dc35.pdf a0a2a75fbb80486e3f9f0e35e94b65a6 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Geology theses OU Geology thesis Thesis or dissertation completed by University of Otago Geology students Location WKT (WGS84) The location stored in WKT (WGS84) format POLYGON ((169.555548574000113 -43.693680732999951,169.553167522000081 -43.693613509999977,169.551604232000045 -43.693569346999936,169.541279780000082 -43.69327713499996,169.541623153000046 -43.686466887999984,169.541675333000057 -43.68543183,169.54218180700002 -43.675383126999975,169.577410764000092 -43.65851005199994,169.589397394000116 -43.65574759499998,169.602495605000058 -43.650359693999974,169.602576168000041 -43.650306,169.615631900000039 -43.641602569999975,169.616114279000044 -43.632690264999951,169.621217775000105 -43.63283238799994,169.659247845000095 -43.63388416,169.658720244000051 -43.64354796799995,169.65804297000011 -43.655948103999947,169.65792255100007 -43.658152224999981,169.656696723000096 -43.659120685999937,169.652657273000045 -43.662311718999945,169.638376006000044 -43.673589530999948,169.625536787000101 -43.682074440999941,169.613181696000083 -43.687352071999953,169.600276296000061 -43.69101552099994,169.58770043200002 -43.694583522999949,169.555548574000113 -43.693680732999951)) Author last name Last name of the Author Higham Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? BSc(Hons) Advisers Who supervised/advised this student Norris, R.J. Cooper, A.F. Abstract The Abstract for this thesis The Mahitahi region lies astride the boundary between the Pacific and Australian Plates, 65 km north of Haast in South Westland. The Alpine Fault transects the area, striking 060° along the margin of the range front. Aerial photos reveal a spectacularly linear recent trace. An older trace of the fault in the form of an abandoned thrust nappe extends we~tward from the presently active fault. Although both the leading edge of the thrust nappe and the active trace can be seen cutting across the rainforest and creeks on aerial photos, field investigation reveals a distinct lack of a major cataclasite-bearing crush zone. This suggests that the active trace of the Alpine Fault at Mahitahi is relatively young and still developing, with insufficient uplift and erosion to expose a significant thickness of cataclasite along the fault surface. The Alpine Schist east of the Alpine Fault has been metamorphosed to oligoclase zone. Albite and oligoclase coexist in the mylonites adjacent to the fault, with zoning profiles indicating a prograde relationship. Zoned garnet porphyroclasts within mylonite also developed during prograde metamorphism. The presence of peristerite plagioclase compositions and garnet zoning indicate the mylonite adjacent to the Alpine Fault was metamorphosed to a maximum of garnet zone, and is, therefore, not a result of more recent retrogression. The mechanics of uplifting garnet zone mylonite west of oligoclase zone protomylonite and schist may involve inversion of metamorphic isograds at depth due to shearing of the ductile Alpine Fault zone (15-20 km depth). Post-glacial sediments are exposed on the northern bank of the Mahitahi River. Here, a sedimentary sequence provides evidence of a post-glacial rise in sea level at Mahitahi approximately 13,000 yrs ago, with the invasion of the sea as a fiord. The sea then regressed, depositing a thick sequence of sands. At the top of the sequence lies 6 m of rhythmically deposited lacustrine mud, which is inferred to have two possible origins; (1) formation of a lake a by the damming of the Mahitahi River, due to infilling of a glacial hollow or an earthquake-related landslide, or (2) a·Late Glacial event involving the creation of a lake behind a loop of moraine, extending westward onto the valley floor. The age of the rhythmite unit is unknown. If the second option is true, it may be a Younger Dryas-related event (10- 11,000 yrs B. P). A Younger Dryas age of the rhythmites exposed on ' the banks of the Mahitahi River would have great significance on a regional scale. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Mahitahi Thesis description Number of pages, maps, CDs, etc. 183 p. : ill. (some col.), maps (some col.) ; 30 cm. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context 1996Higham Creator An entity primarily responsible for making the resource Higham, Caroline Hamilton Rose. Date A point or period of time associated with an event in the lifecycle of the resource 1996 Title A name given to the resource Structural and mineralogical study of the Alpine fault zone, and an investigation into the post-glacial environment : Mahitahi, South Westland Subject The topic of the resource Structural geology Metamorphic petrology Quaternary geology Alpine Fault Mahitahi River mylonites Quaternary geology https://theses.otagogeology.org.nz/files/original/c6e29fb753e806f923199e680a01ecab.pdf da782bacaf0547d1a21af6a39ff4862b Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Geology theses OU Geology thesis Thesis or dissertation completed by University of Otago Geology students Location WKT (WGS84) The location stored in WKT (WGS84) format POLYGON ((170.61051438800007 -44.932552546999943,170.610123552000118 -44.933129753999935,170.608223058000021 -44.935076095999932,170.606665596000084 -44.937704596999936,170.604298963000019 -44.939965463999954,170.60212669900011 -44.941726113999948,170.601274180000019 -44.943135597999969,170.598906464000038 -44.943537311999933,170.597688730000073 -44.943557405999968,170.595973318000119 -44.943580797999971,170.592808856000033 -44.944402689999947,170.592446837000011 -44.944498793999969,170.589193481000052 -44.945399787999975,170.586036304000118 -44.94627116199996,170.583458799000027 -44.94699234199993,170.581736055000079 -44.948433285999954,170.579917941000076 -44.949336582999933,170.579849969000065 -44.949371191999944,170.579805450000094 -44.949374774999967,170.578221240000062 -44.949517645999947,170.577287277000096 -44.948021936999965,170.575915075000012 -44.946935789999941,170.575045551000017 -44.946886315999961,170.573467635000043 -44.946799681999948,170.57106577400009 -44.946479910999983,170.569307674000015 -44.945610758999976,170.568180986000016 -44.945110271999965,170.566054727000051 -44.946182518999933,170.564248323000015 -44.946950775999937,170.564119892000122 -44.948068944999932,170.563574154000094 -44.949007397999935,170.562608333000071 -44.949910116999945,170.563381831000015 -44.95098399699998,170.564042902000097 -44.951555887999973,170.563077075000024 -44.953381384999943,170.541820759000075 -44.952708439999981,170.542395660000125 -44.93467439099993,170.555291632000035 -44.916353151999942,170.576858047000087 -44.90564190799995,170.581810333000021 -44.90318287499997,170.588804929000048 -44.899707837999983,170.607104125000092 -44.900123223999969,170.632402008000099 -44.900690675999954,170.640378043000055 -44.900869400999966,170.634550955000122 -44.909128878999979,170.634358236000025 -44.91062391,170.632355203000088 -44.911767333999933,170.631975941000064 -44.911984741999959,170.627233529000023 -44.914697710999974,170.625932673000079 -44.917439670999954,170.624835435000023 -44.918497766999963,170.624739860000091 -44.91859035799996,170.623889708000092 -44.919410378999942,170.622523981000086 -44.9203684899999,170.621088898000039 -44.920528455999943,170.61795381100012 -44.922945048999964,170.615526233000082 -44.925880082999981,170.614412979000122 -44.927248347999978,170.614386386000092 -44.927279315999954,170.61258315900011 -44.929493277999939,170.61051438800007 -44.932552546999943)) Author last name Last name of the Author Grafe Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? PGDipSci Advisers Who supervised/advised this student Sibson, R. Abstract The Abstract for this thesis The geological mapping of the Maerewhenua area had to deal with basement rocks, an assemblage of Cretaceous-Tertiary cover rocks and a thin strata of Quaternary cover rocks. The relationships between mapped rock units bear already a lot of information about the geological history. Two unconformities and one transitional disconformity were found, and referred to two major deformation events in the geological record: 1) The Rangitata Orogeny, and 2) The Kaikura Orogeny. Furthermore, a marine transgression occurred due to subsidence starting in the early Paleocene. Polyphase deformation of schist was investigated using mesoscopic structures. The results are mostly compatible to previous work at Danseys Pass. The deformation history is characterised by at least 3 to 4 different phases. Deformation occurred under ductile conditions as well as under brittle conditions. After mostly ductile deformation during the Rangitata Orogeny, peneplanation occurred that resulted in a schist peneplain having locally significant relief. Continuos subsidence in the Eocene to Miocene caused several marine transgressions. Glauconitic sand, silt and limestone were deposited in mostly shallow marine environment. In the Oligocene tholeiitic sills intruded unconsolidated sedimentary strata. Transpression during the Kaikura Orogeny results in brittle deformation of the schist, associated basement rocks and overlying strata since the beginning of the Pliocene. Strain-estimations for the ductile deformation of the basement rocks during the Rangitata Orogeny were derived from investigation of conglomeratic schist using the Rf/<)>-Method. "Pan-cake"-like deformed quartzofeldspathic clasts were shortened about 67% along the Z-axis. In comparison with previous work NORRIS & BISHOP (1990) such value implies schist close to the boundary of TZ 2B I TZ 3A. Sampling of basement rocks and petrographical work suggest subhorizontal isograds. No significant change in metamorphic grade was revealed over more than 6 km distance. The basement rocks of Maerewhenua area is exposed in Pumpellyite-Actinolite fades. A theoretical model was given to explain vertically foliation, vertical plunging, isoclinally folded bedding and subhorizontal isograds. Similar to findings by WARD & SPORLI (1979) rotation of bedding could not have been avoid. Rotation of large blocks might still be a problem. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Maerewhenua Thesis description Number of pages, maps, CDs, etc. 116 leaves : ill. (some col.), maps (some col.) ; 30 cm. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context 1996Grafe Creator An entity primarily responsible for making the resource Grafe, Friedemann, 1971- Date A point or period of time associated with an event in the lifecycle of the resource 1996 Title A name given to the resource Geology of the Maerewhenua area, ranges west of the Maerewhenua area, or, "Wie lerne ich English in einem Jahr" Subject The topic of the resource Structural geology block faulting glaciation Quaternary terraces https://theses.otagogeology.org.nz/files/original/4781d230c84516606520976fff41e418.pdf ad169e9a5631e7b825b41dc7c23d4e2b Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Geology theses OU Geology thesis Thesis or dissertation completed by University of Otago Geology students Location WKT (WGS84) The location stored in WKT (WGS84) format POLYGON ((170.604311860000053 -44.873017639999944,170.604292158000021 -44.873035242999947,170.604236575000073 -44.873079119999943,170.593143011000052 -44.88194907899998,170.583257123000067 -44.88984813299993,170.582381600000076 -44.889190880999934,170.573981642000035 -44.882859391999943,170.572194372000013 -44.881512465999947,170.559731950000014 -44.872115654999959,170.559692135000091 -44.872083314999941,170.557426455000041 -44.870226509999952,170.552644410000084 -44.866309447999981,170.554285830000026 -44.864498133999973,170.565872189000061 -44.85171229599996,170.587459681000041 -44.827878279999936,170.592584680000073 -44.828546465999977,170.594230140000036 -44.828760348999936,170.608152240000095 -44.830576075999943,170.609731628000077 -44.830783882999981,170.611451161000105 -44.831674236999959,170.611999490000017 -44.831960004999985,170.619820606000076 -44.835999422999976,170.638027341000111 -44.842440298999975,170.633471384000018 -44.846575105999932,170.618748810000056 -44.859929375999968,170.604354611000076 -44.872978001999968,170.604311860000053 -44.873017639999944)) Author last name Last name of the Author Giessmann Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? PGDipSci Advisers Who supervised/advised this student Sibson, R. Abstract The Abstract for this thesis The geology of th~ Tewtapoki-Waikaura Creek area comprises deformed greywackes and argillites with sub-vertical foliation which were metamorphosed during the Early Jurassk to Textural Zone 2B of the Otago Schist. Pumpellyite is present but prehnite is not seen in any thin section suggesting pumpellyiteactinolite fades. The metamorphic grade does not change for at least 6 km across the northwest striking schistosity. The schist is deeply weathered . The schist basement has undergone a series of deformation events. Pre-, syn-, and post-metamorphic deformation are recognised. Compression related to a collision led to folding; tilting, and transposition of the original_ layers, Iinalfy causing the foliation and lineation. Post-metamorphic brittle deformation caused major faults in the area. The Tewatapoki Fault runs across the area and is northeast-southwest striking. For this fault, the stress field of normal faulting has been identified. The Waikaura photolineament is sub-parallel and seems to be related to the Tewatapoki Fault. Northwest trending photolineaments are sub-parallel to the Dryburgh Fault and may represent thrust faults. Joints seem to be partly systematic and strongly associated to northwest trending normal faults or due to ·stress relaxation subparallel to the foliation. The fabric of the schist ranges from massive, with nearly undeformed detrital grains to flattened with rotated grains of quartz and albite within highly deformed schist. The schist basement is overlain by a cover sequence comprising shallow marine and fluvial deposits of Taratu Formation. A Late Cretaceous transgression event has been established by in situ glauconite and occurrence of detrital potassium feldspars. Potassium feldspars are assumed to be derived from the Western Province of Stewart Island or Fiordland. Upper sequences of Taratu are fluvial in origin and form together with the marine sequence approximately 45 m of sediment. Coarse cobble gravel in the upper layers of the Late· Cretaceous Taratu Formation may indicate the the existence of the Waitaki Valley. Mid Tertiary shallow marine sediments unconformably overlay the Taratu Formation. Tapui, Earthquake Marl, and Kokoamu Greensand formation are inferred to underlie parts of the area but have not been seen due to poor outcrop exposure. 4 I I I I I I •• • 11 11 11 11'' 11' 11 11. 11 11 11 I: Otekaike Limestone, as the youngest mid Tertiary deposit, is highly fossiliferous and contains foraminifera of Duntroonian to Waitakian (both Late Oligocene) age. Two different Quaternary fluvial conglomerates can be distinguished, the Older and the Recent Gravels. They vary in thickness across the mapping area and become .thicker going to the northeast. Older Gravels are very coarse cobble gravel containing mainly graywacke clasts. Loess is interbedded with the more recent fluvial sediments and can be up to 4.50 m thick. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Tewatapoko Creek Waikaura Creek Thesis description Number of pages, maps, CDs, etc. 80 leaves : ill. (some col.), col. maps ; 30 cm. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context 1996Giessmann Creator An entity primarily responsible for making the resource Giessmann, Wilko, 1969- Date A point or period of time associated with an event in the lifecycle of the resource 1996 Title A name given to the resource Geology of the Tewatapoki-Waikaura Creek area Subject The topic of the resource Structural geology block faulting Cretaceous - Tertiary stratigraphy Haast Schsit