1 10 2 https://theses.otagogeology.org.nz/files/original/8f671aa37158f4349dd8698db153a543.pdf 9c7b19231f3f3baea9e1e8c429467baa 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 ((168.980268037617918 -44.512085381587632,168.912605292374394 -44.508608151123951,168.912110778939564 -44.480008024062379,168.927615701185687 -44.472345381763304,168.965819375803733 -44.475489796589521,168.982131722925232 -44.48499775678787,168.980268037617918 -44.512085381587632)) Author last name Last name of the Author Gamble Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? BSc(Hons) Advisers Who supervised/advised this student Craw, D. Cooper, A.F. Abstract The Abstract for this thesis Haast Schist (Greenschist Facies, Textural Zone IV) rocks of the study area have undergone four recognizable deformation phases. All four deformation phases are post-metamorphic in origin. The earliest of these phases produced a macroscopic recumbent fold which dominates field area structure. The latest phase shears and offsets a suite of post-metamorphic intrusive lamprophyre dykes and related rock types. A diatreme complex consisting dominantly of brecciated schist country rock with lesser amounts of lamprophyre and carbonatite, is described from Mt Alta. Diatreme emplacement probably occurred under highly fluidised conditions at shallow depth. Common carbonate alteration zones in the study area are here considered to be genetically related to lamprophyre/carbonatite magmatism. A mineralized quartz reef was found near the Mt Alta diatreme, and a possible genetic relationship to magmatic rocks is suggested. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Mt Alta Triple Peak Thesis description Number of pages, maps, CDs, etc. 83 p. : 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 1984Gamble Creator An entity primarily responsible for making the resource Gamble, Michael. Date A point or period of time associated with an event in the lifecycle of the resource 1984 Title A name given to the resource Geology of Mt Alta - Triple Peak Subject The topic of the resource Map Metamorphic geology Structural geology carbonatite deformation lamprophyre textural zone https://theses.otagogeology.org.nz/files/original/9b849cc8e009331869325a2d57c6dc7a.pdf 40d0bdbe4b9c69e73feea2e419ee6db2 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 ((170.188408172110627 -46.053471126147116,170.211224774378337 -46.055459410881326,170.213191938413445 -46.084322600848004,170.209514818354336 -46.109713914512632,170.191020076296269 -46.150220670148563,170.144117716737156 -46.189160250394401,170.087512766991637 -46.209163460003133,170.075888375549596 -46.19553069616822,170.136481771809571 -46.151343063713625,170.173886612152529 -46.116791800585304,170.18570949240285 -46.086363526347618,170.187455077563243 -46.065497665836297,170.188408172110627 -46.053471126147116)) Author last name Last name of the Author Bejnar Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? PGDipSci Advisers Who supervised/advised this student Norris, R.J. Abstract The Abstract for this thesis The southern most coastal exposure of Tuapeka Group rocks is in the Bull Creek area, south of Milton, south Otago. Four mapping units were separated because of sedimentological or structural differences. Massive homogeneous sandstones and siltstones are (from four point counted thin sections) dacitic feldspathic psammites. Related rocks include thick bedded sandstones, rhythmicly bedded siltstones and argillites with fossil worms, colour banded argillites and bedded radiolarian cherts. Black chert nodules from one area were studied geochemically. 2000 ppm tungsten and about 500 ppm native silver occur in these iron and manganese rich radiolarian chert cobbles. The rocks are metamorphosed to upper prehnite - pumpellyite to lowest pumpellyite - actinolite facies; they belong to textural zones 1 and 2A (after Bishop, l972A). Despite the low degree of metamorphism, the rocks are often structurally complex. Six phases of deformation have been identified. 1) Extensive soft sediment deformation caused sedimentary melange in some isolated areas. 2) Isoclinal folding and shearing disrupted the area. Because of the double deformation of the sedimentary melange areas, granules to blocks of the various lithologies are strewn around in an argillite matrix. This is mapped as a broken formation. 3) A deformation overturned the sequence. 4) Normal faulting occurred. 5) Low angle shear zones with well developed long quartz fibers formed. 6) The area was crossed by joints and veins. The placement of what is here labelled 3 and 5 are not definite; they each may have occurred one earlier. The principal quadratic extensions determined from deformed radiolaria are 1.34, 1.10 and 0.68. Most of the elongation probably occurred during phase 2. The geologic history and possible plate tectonic associations are discussed. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Bull Creek Thesis description Number of pages, maps, CDs, etc. 91 leaves : illus. 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 1977Bejnar Creator An entity primarily responsible for making the resource Bejnar, Tor John Stark. Date A point or period of time associated with an event in the lifecycle of the resource 1977 Title A name given to the resource Geology of the Tuapeka group, Bull creek area, South Otago, New Zealand. Subject The topic of the resource Map Geochemistry Metamorphic petrology Structural geology chert textural zone Tuapeka Group