1 10 3 https://theses.otagogeology.org.nz/files/original/eb7251fe3a008bcd49c2bca3703351a8.pdf 5afeb5c84ec16d7b7060a7a6d574df13 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 ((169.759699482432978 -46.397013858403184,169.864123147323397 -46.424693929299991,169.700107640613282 -46.56295480864263,169.397355890733195 -46.650969151333797,169.051867395130131 -46.703373895657478,168.880410001258809 -46.682078628519093,168.866241018862468 -46.650131915565112,169.074442012312772 -46.640330536834405,169.420759882790037 -46.568833674658975,169.643267546164907 -46.49938438533519,169.759699482432978 -46.397013858403184)) Author last name Last name of the Author Keeman Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? MSc Advisers Who supervised/advised this student Palin, J.M. Abstract The Abstract for this thesis The provenance of the Murihiku Terrane has been investigated using petrography, geochemistry and geochronology on igneous, mainly plutonic, clasts found in rare conglomerates along the Catlins Coast, southeastern New Zealand. Late Triassic (Oretian) conglomerates at Roaring Bay and Middle Jurassic (Temaikan) conglomerates at False Islet, Waikawa, and Slope Point have been studied in detail. These are generally polymict, poorly sorted, and pebble to cobble (uncommonly boulder) grade. The mid-Jurassic conglomerates were deposited in a fan-delta to terrestrial setting. Rounded to subrounded volcanic clasts dominate with subordinate volcaniclastic, plutonic (c. 15%), and rare metamorphic clasts. The 18 plutonic clasts geochemically analysed (whole-rock; ICP) range from quartz monzodiorite to alkali feldspar granite (59–79 SiO2 wt%) and generally have subduction-related arc geochemistries. The majority are I-type but a small number have weak A-type affinities, and one is strongly A-type. Three volcanic clasts were also analysed. Three of the 21 total clasts analysed have adakitic (HiSY) affinity. Subduction-related characteristics are seen such as negative Nb and Ta anomalies. Clasts from all the conglomerate horizons have petrographic similarities. Zircons from 13 plutonic clasts have been dated by LA-ICP-MS yielding the following 208Pb-corrected concordia ages with 2σ errors. The main clast age cluster is broadly Middle Permian (258 ± 3 Ma, 263 ± 2 Ma, 266 ± 3 Ma, 268 ± 3 Ma, 269 ± 3 Ma, 270 ± 3 Ma, 272 ± 2 Ma). In addition there are clasts with younger Triassic (218 ± 2 Ma, 240 ± 3 Ma) and Jurassic (168 ± 2 Ma, 187 ± 2 Ma), and older latest Carboniferous (300 ± 3 Ma) and mid-Carboniferous (333 ± 3 Ma) ages. An igneous clast with an age that is penecontemporaneous with its depositional age was found in both a Middle Jurassic and Late Triassic conglomerate. It is possible that the False Islet, North Head, and Slope Point conglomerates have the same broad depositional age, and could represent the same stratigraphic level. Many of the analysed clasts show similarities with units within the adjacent Median Batholith on the basis of their combined petrography, geochemistry and age characteristics. The Darran Suite shows an excellent match with the 168 Ma clast (Rakeahua Pluton and Hunter Intrusives), and the 218 Ma clast with Mistake Suite. The 300 Ma A-type alkali feldspar granite clast is comparable to the Freds Camp Pluton of the Foulwind Suite, and the 333 Ma clast may be from a younger Tobin Suite member such as the Lake Roxburgh Tonalite. The Permian cluster is difficult to correlate with New Zealand rocks. Alternatively, the source of these may extend to the voluminous Mesozoic to Late Palaeozoic batholiths that occur in formerly contiguous eastern Australia and West Antarctica. This study has shown that conglomerates can be an important tool when investigating the provenance of a sedimentary tectonostratigraphic terrane. Conglomerate clasts provided hand specimen size samples of source rocks to the Murihiku Terrane. This size of sample allowed for much more extensive geochronology, petrography, and geochemistry analysis than could be otherwise carried out on detrital grains within the dominant finer grained sandstone lithologies. Conglomerate clasts therefore provide more robust evidence to any provenance determinations. OURArchive handle The handle from the Otago University Research Archive (OURArchive) <a href="http://hdl.handle.net/10523/4964">http://hdl.handle.net/10523/4964</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. Catlins Coast Southland Thesis description Number of pages, maps, CDs, etc. xiv, 308 pages A4 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 2014Keeman Creator An entity primarily responsible for making the resource Keeman, Jelte Cornelis (Jelte) Date A point or period of time associated with an event in the lifecycle of the resource 2014 Title A name given to the resource Provenance and age of igneous clasts in Mesozoic Murihiku conglomerates, Catlins Coast, New Zealand Subject The topic of the resource Igneous Petrology conglomerate geochronology Gondwana Igneous clasts LA-ICP-MS Median batholith Murihiku Terrane provenance U-Pb zircon dating https://theses.otagogeology.org.nz/files/original/ec3c2e455e8de4f3816229960bc2a231.pdf 6920601660c9cb17d9178955725c462d 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 ((170.073478889939111 -45.677264202929592,170.214733638598091 -45.680500446403315,170.311044012089326 -45.779856623564669,170.309239939476612 -45.817322757988649,170.148571711092217 -45.812232469351464,170.07150703259137 -45.715020671130993,170.073478889939111 -45.677264202929592)) Author last name Last name of the Author Gunn Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? PGDipSci Advisers Who supervised/advised this student Reay, A. Abstract The Abstract for this thesis The area is situated approximately 10 kilometres north of Outram, (Fig. 1 :1) a small town on the Taieri Plains of east Otago. It has a basement of schist with isolated patches of Cretaceous quartz-rich sands and conglomerates, which are in part overlain by an olivine basanite extrusion. The lithology, structure and mineralogy of the schist was studied. It was concluded that the schist belonged to the biotite-garnet zone of the greenschist facies. Structurally, four phases of deformation were recognised. Recent faulting is expressed in two regimes, NE/SW and the later NW/SE faulting. Cretaceous quartz-rich terrestrial sediments were deposited in a time of marine transgression upon a peneplained surface. The quartz-rich sediments were subdivided into four units depending on the inferred paleo-environment. The volcanic sequence is a peripheral outlier of the central Dunedin Volcano. It includes an assemblage of lherzolite xenoliths, clinopyroxene xenoliths, megacrysts and accidental xenoliths which are all described in detail. It is concluded that lherzolite and clinopyroxene xenoliths are genetically related and that megacryst phases have formed directly from the melt. Accidental xenoliths provide some rare and interesting mineral assemblages in their contact aureoles. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Mt Hyde Fortification Peak Thesis description Number of pages, maps, CDs, etc. 84 leaves : illus. (part col.) map (in pocket) ; 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 1978Gunn Creator An entity primarily responsible for making the resource Gunn, Peter Robin. Date A point or period of time associated with an event in the lifecycle of the resource 1978 Title A name given to the resource Geology of the Mt. Hyde - Fortification Peak area. Subject The topic of the resource Map Igneous petrology Metamorphic geology Sedimentary petrology basanite conglomerate Haast Schist inclusions https://theses.otagogeology.org.nz/files/original/341596745aa674b2d47f5841ce865148.pdf 6ccd42006fa6c045871d6a367806f7f6 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 ((169.784079116000044 -46.371110722999958,169.783734357000071 -46.37163714299993,169.78362242500009 -46.373875724999948,169.782817542000089 -46.390215844999943,169.782778111000084 -46.391038496999954,169.782456148000051 -46.397561012999972,169.785371377000047 -46.400290044999963,169.800786703000085 -46.414721364999934,169.795497619000116 -46.435344000999976,169.795473117000029 -46.435433369999942,169.811687747000065 -46.445472904999974,169.818544116000112 -46.449718330999985,169.811660900000106 -46.448546334999946,169.800691408000034 -46.446680426999933,169.799530434000076 -46.448179941999967,169.796703626000067 -46.451822670999945,169.794290188000105 -46.45212760499993,169.781169103000025 -46.453798934999952,169.781036103000019 -46.455537275999973,169.780249971000103 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-46.356877232999977,169.765653875000112 -46.342785564999986,169.730025660000024 -46.328605221999965,169.727046152000071 -46.330324612999959,169.701738742000089 -46.344910062999986,169.70241937500009 -46.345680493999964,169.707523486000014 -46.351451802999975,169.711165651000101 -46.355575825999949,169.700792373000013 -46.368692123999949,169.716482064000047 -46.367861439999956)) Author last name Last name of the Author Waddell Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? BSc(Hons) Advisers Who supervised/advised this student Campbell, J.D. Landis, C.A. Abstract The Abstract for this thesis A map and description of the geology of 9 square miles of the Romahapa area is presented. The area is underlain by sedimentary rocks of ?upper Palaeozoic and lower Mesozoic age. Fossil evidence fixes the age limits as Permian or post-Permian to pre-Oretian. The oldest rocks of the area are described as two new formations, a lower North Romahapa Conglomerate and an upper Waituti Formation, comprising the North Romahapa Group. A distinctive conglomerate from this group is described in lithologic and petrographic detail. The group is established on lithologic grounds. The other rocks of the area are not so extensively described. Where applicable all rocks are described and compared using Folk's sandstone classification. The vast majority of the rocks fall in the "volcanic arenite" area of this classification. Alteration effects are considered to be consistent with zeolite facies metamorphism. A tentative structural interpretation is given, based on the limited field data available. It is not claimed to be the only possible interpretation, nor necessarily the correct one, and is likely to be a gross simplification. On its basis, an episode of deformation of possible late Permian age is tentatively suggested. Finally a brief section on economic geology is presented. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Romahapa Otago Thesis description Number of pages, maps, CDs, etc. 70 leaves. Photos, map (folded in pocket); 27 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 1969Waddell Creator An entity primarily responsible for making the resource Waddell, SJ Date A point or period of time associated with an event in the lifecycle of the resource 1969 Title A name given to the resource Geology of Romahapa area, south-east Otago. Subject The topic of the resource Map Mesozoic Sedimentary petrology Structural geology Metamorphic geology arenite conglomerate volcanic arenite zeolite facies