1 10 3 https://theses.otagogeology.org.nz/files/original/82adb5050fafedc5dced73a722f3f763.pdf f675dad094a8f6c1ef403a55a86a810f 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 Williams Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? MSc Advisers Who supervised/advised this student Coombs, D.S. Means, W.D. Hodgson, W.A. Wright, J.B. Rickwood, P. Abstract The Abstract for this thesis This thesis describes the results of several programmes of geochemical prospecting in New Zealand, during which it was found possible to delimit known deposits and locate new anomalies, and the results of research arising from them. At Copper Queen Mine, Parakao, in Northland, and at the Moke Creek copper lode, near Queenstown in Central Otago, soil prospecting was used to determine the subsurface limits of known copper deposits. The deposit at Parakao appears to be limited, but at Moke Creek the lode formation probably continues for at least twenty chains further than it can be seen in outcrop. Exploration surveys were made in part of the Shotover River drainage basin and in the Longwood Range in Southland. The source of a cupriferous boulder, found in the Shotover River, may be associated with the soil, and creek water and sediment, anomalies found in Ironstone Creek. The survey in the Longwood Range was more general than that in the/Shotover district. Copper, nickel, and zinc were sought in the water and sediments of all the accessible creeks draining the range. This was followed by soil prospecting in the anomalous areas thus located. Anomalies were found in the soil samples, although it was not possible, from the limited results obtained, to determine the areal extent or possible source of the anomalies. In several areas studied seasonal effects were evident in the water and soil, and thought to result from changes in rainfall, temperature and organic activity. At Parakao organic acids are thought to affect the soil pH, and this in turn affects the dispersion of copper in the ground water. Organic activity may also affect the metal content of the creek water in the Longwood Range. Since results of water sampling at one locality on different occasions varied, a monthly study was made of the copper and sulphate content and pH of stream water, and the total and cold-extractable copper content of creek sediments. The results show that the total and cold-extractable copper content of the sediments and the copper and sulphate content of the water tend to vary inversely as the pH and creek discharge, although for part of the year the cold-extractable copper content of the sediments varies with the pH. The copper content of the water and sediments is high in the summer months, then decreases until June when there is a winter maximum while the creek discharge is low. This lasts until September and is followed by a drop in copper content until the temperature rises in November and the creek discharge is again low. In an attempt to overcome the variable metal content of creek water the possibility of using silica as an internal standard was investigated. The results obtained showed that both the silica content and the metal to silica ratio varied significantly, and the method was abandoned. Much of the soil sampled was over schist and the mode of occurrence of copper in the overlying soil was studied. Of the essential minerals present, namely chlorite, muscovite, albite, and quartz, the chlorite fraction has the greatest concentration of copper initially ( i.e. in the rock) and adsorbes the greatest amount of copper from aqueous solution. The amount of copper associated with organic matter or the iron oxides is negligible. In an area where soil sampling had proved unsatisfactory, vegetation samples were collected and analysed for nickel. Results from the first group of plants showed the presence of an intense anomaly closely related to a nickeliferous lode. However samples collected from near a second outcrop, with apparently similar mineralogy to the first, all had low nickel contents. During the exploration work a large number of results were produced; to aid in their interpretation an attempt was made to analyse them statistically. If the cumulative frequency distribution of the analytical results from one area are plotted on probability graph paper a break or point of inflection in the graph indicates the presence of more than one distribution, and is an indication of the boundary between the two groups. Its meaning in terms of the overlap of the background and anomalous distributions can be determined. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Shotover River Longwood Range Southland. Thesis description Number of pages, maps, CDs, etc. 1 v. iv. 197 p. ill. 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 1964Williams Creator An entity primarily responsible for making the resource Williams, Xandra Kathleen. Date A point or period of time associated with an event in the lifecycle of the resource 1964 Title A name given to the resource Applications of analytical chemistry to geochemistry : thesis presented for the degree of Master of Science in Chemistry, University of Otago geochemistry soil prospecting https://theses.otagogeology.org.nz/files/original/e36e9624151ae215aa7b91319293bb7e.pdf 71998ea20755e6f98f22a6a802bf437a 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 ((170.117446650668654 -44.600447943823497,170.117486953121954 -44.586157628599473,170.160538244425169 -44.578185751134484,170.170100603576685 -44.532214366775875,170.197188330471164 -44.522878812321416,170.289583906610602 -44.569414025336194,170.250309026209777 -44.610872237134764,170.260586681834724 -44.619217815328668,170.242736258554032 -44.64403587132621,170.117446650668654 -44.600447943823497)) Author last name Last name of the Author Shu Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? BSc(Hons) Advisers Who supervised/advised this student Coombs, D.S. Abstract The Abstract for this thesis INTRODUCTION The area investigated lies within Benmore and Hewlings Survey Districts of Otago and Canterbury respectively; covering approximately the southern end of the Waitaki Gorge. The area consists of a one and a half mile strip on either side of the Waitaki River with Black Jacks Point as the northern boundary and the main road through Otematata as the southern boundary. Basement rocks or metagreywackes of this area are part of the Torlesse Group of the Alpine Facies. It is known to be structurally very complex and lies within the prehnite and pumpellyite metagreywacke facies. The construction of Benmore Dam has resulted in numerous road-cuts and excellent exposures around the dam site. In view of these advantages and the eventual loss of many outcrops beneath the future Lake Benmore, this project was initiated in an endeavour to elucidate the possible structure and to establish a general picture of the tectonic history. The term "argillite" in the following pages is used to denote fine grained rocks including siltstone, mudstone and ash bed; while lithic, tuffaceous and micaceous sandstone and arkose are covered by the term "greywacke". Aerial photographic coverage of the area is given by run 2726, photographs 14 17 and run 2725, photographs 16 - 18. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Benmore Dam Otago north Thesis description Number of pages, maps, CDs, etc. 62 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 1964Shu Creator An entity primarily responsible for making the resource Shu, YK Date A point or period of time associated with an event in the lifecycle of the resource 1964 Title A name given to the resource Greywacke Structure and Petrography around Benmore Dam, North Otago. Subject The topic of the resource Map Sedimentary petrology Structural geology coral fossil fusulinid foraminifera prehnite-pumpellyite Torlesse Supergroup https://theses.otagogeology.org.nz/files/original/2acee1e2ef8973558efdd22c9ee61e0e.pdf 23930409359375b5f6d3706d82deaa27 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 ((170.227976466000086 -44.614158441999962,170.235481647000029 -44.616908047999971,170.300628977000088 -44.640733886999953,170.302055533000043 -44.641257718999952,170.329489930000022 -44.663181296999937,170.357380513000066 -44.685450170999957,170.365829093000116 -44.697842068999933,170.367115240000089 -44.701216147999958,170.3717349530001 -44.713340813999935,170.371560619000093 -44.7196216899999,170.37152122800012 -44.721079451999969,170.371193667000057 -44.733020377999935,170.371190275000117 -44.733096835999959,170.370833066000046 -44.746059014999958,170.370274747000053 -44.766323322999938,170.231722366000099 -44.763630177999971,170.231249769000101 -44.763330808999967,170.182843634000051 -44.731379043999937,170.182399727000075 -44.731084654999961,170.146386634000123 -44.707996932999947,170.012058319000062 -44.597831035999945,170.011967538000022 -44.597756652999976,170.002768160000073 -44.589873528999931,170.001705176000087 -44.588963499999977,170.003805001000046 -44.561959933999958,170.026097023000034 -44.56254271399996,170.087135314000079 -44.564109433999931,170.134899980000114 -44.565312124999934,170.18367937700009 -44.56651943199995,170.217959510000014 -44.567354888999944,170.230148658000076 -44.567650770999933,170.230080440000052 -44.569112434999965,170.230076661000112 -44.569193387999974,170.229802283000026 -44.575071521999973,170.229500341000062 -44.581538810999973,170.228890802000024 -44.594590296999968,170.228395141000078 -44.605199652999943,170.228320536000069 -44.606796225999972,170.22827829400012 -44.607700199999954,170.228203263000069 -44.609305766999967,170.228201582000111 -44.609341745999984,170.228120662000038 -44.61107323799996,170.228054451000048 -44.61248991399998,170.227977937000105 -44.614126959999965,170.227976466000086 -44.614158441999962)) Author last name Last name of the Author Ryburn Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? BSc(Hons) Advisers Who supervised/advised this student Campbell, J.D. Abstract The Abstract for this thesis INTORDUCTION The Triassic f o ssi l loc a lity a t Corbie s Creek, North Otago was discovered i n 1958 by E . 8 . Gair and D. R. Gregg of the New Zeal an.d U·eological Survey. , 'l'his wa s recollect ed later in 1958 and a paper by Gair, Gregg and Speeden desm:i bing t he occurrence was published in 1962. The primary aim of this investi gation was to map the fossil locality tog ether with any extension of' the f ossili ferous horizon that might exist. Prom t his it was hoped that stratigraphy, structure and relationship with surrounding lithologies mi ght be elucidated. Field Work, Dat es and Procedure. F ield work was started on the 3rd of December 1963, twelve da~,rs ·being s pent on a geological traverse t hrough the ori ginal :fos sil locality and on reconnaisance of t he surrm_m ding rocks. Nurner ous :fossil localities were d:LscovePed over• an area of sevePal square miles. A brief / I - 2 - visit with Prof essor · Coombs on the 20th and 21st of December was followed by ·16 days in the area starting :from the 1st of J·anuary, '196L+. This period was s pent in est ablishing , measuring and extending ma ppable units within t he fossiliferous sediments, particularly in the area several miles south-ea st of the Corbies . Creek locality. Fossil collections were made over much of this area. Mr J.D. Campbell accompanied the writer on a three day v:Lsit towards the end of F ebruary. Starting on February the 29th, three days were spent in the area immediately to the south and south-east of the ori ginal Corbies Creek locality and a fourth on the north-west side of the Otrunatapio River. Possils found there served to esta.blish the nol~th-west con tinuation of the Triassic sediments. Work was continued in the Ntay vacation from the 20th to the 31st, mainly on extending the mapping as far as the Otematata River. Several days were used in attempting to correlate the area containing the Corbies Creek locality with the separate fossiliferous area to the south-east . Assistance was given to Professor J .· B~ .'_Mackie and party in establishing grolmd control points on the first weekend of Au gust. In the field, mapping was drawn directly on to the air-photos. Sections were measured with a tape compass and clinometer. - 3 - .Aclmowledgements:- 'rhe project was supervised by Mr J .• D. Camp bell to whom I am indebt ed f' o:e assistance and direction, particularly in :fossil identifications. I a~ grateful to Prof'essor Coombs :for suggestions and guida.YJ.ce in :fieldwork, and to Professor Maclde, O.A. Evans and C. ', . Garlick of the Surveying Department :for the f' irst class base map prepared f'rom air-photos. In :formation on surr01mding geology was obtained from Ivlr A.R. L1utch of the Geological Survey and :from :fellow student Y. K. Shu. I am indebted to Messrs W. P . and J.B. C~neron of Otematata Station and particularly to Mr and Mrs 'l'aylor of the Backyal"ds Homestead, Otematata Station :for their generous hospitality. Ge ographic Setting:- 'rhe position and exten t of' the ar•ea mapped is shown on the map of' the Otematata Region. A prominent fault angle depression trending northwest, south-east between the Otamatapio River and Otematata River provides the natuEal axis to the area studied ( see F i gure 1). Boundaries are provided by the two rivers mentioned above and by the crestal ridge of Middle Range to - LJ. - the north-east. 1\ line rou ghly pal'allel to Mi ddle Range 3 miles to t he soutb-west def'ines the r•emaining boundary. Tot a l area is appr•oxi::nt'l. tely 20 square miles. •rop ograJ2h.Y and Drainage:- •'rom the base of' the scarp f'orming the south-west f'ace of' Iii i ddle Range an extensive diss ected surf'ace slopes u p to the crest o:f HawkduJl Hange some 9 miles south-west. This is drained by both the Otematata and Otamatapio Rivers. The south-east third of' the area is drained by a series of' deeply incised gullies of' which Long Gully is promi n ent. These converge on the Otematata River just above the point where it cuts through Middle Range in a r et1!DI'kable meandering g oPge. 'l'he north-west t vvo-thirds is drained ma inly by Corbies Creek and tributaries. 'l'his stream is lmovm locally as tl i dclle Stream whj.le the name Glen Bouie Creek appears to apply to its upper rea ches. A larg e expanse of all1.1.v:Lal f'lood-plain and ter races between t he Otamat apio and Corbies Creel<:. will be referred t o as CoPbies Cr eek Basin. Back;yards Basin is the name given to the much smaller area of alluvium and outwash f'ans between the Backyards IIomest ead and the base of' / I - 5 - Middle Range near' the centre of the area. The low hillocky ground between the two, roughly square in plan, is called Rabbiter' s IIut Block. South-east of Backyards Basin the name Long Gully Blocl;: is intended to refer to the strip rmder'lain by fossiliferous Triassic rocl<:: s that extend as far as the Ote~ nata ta River . Culture; Vegetation and Outcrop. Acces s to the l:3ackyards Homest ead is via a pr ivate road from a gate on the Ote:natata - Omarama road about a mile beyond .Ahuriri Pass. Alternatively a rough venicle tr a ck leads directly across Middle Range f'rom tDtematata Station Homestead near Otematata t ownship. Another vehicle trEtck winds down Long G ull ~r to the Otematata River which it follows for ten miles upstream . within Ot ematata Station. 'l'he area lies wholly Ground cove1, in the lower parts tend s to be rather sparse, consisting ma inly of sorrel and scabweed with some scat t ered tussock. Some areas, particul arl y in Rabbitel,, s Hut Block, are almost devoid of vegetat ion, this being undoubtedly due to the infestation of rabbits. Hi gher ground is clothed in tussock while gulleys and sunny steep slopes are often choked with matEtgouri and sweet briar. Isolated and clumped willows are present in some wat er cmJ.r ses. / - 6 - Rainfall is reported to be 1211 a year. Outcrop is gen erally alnmdant particularly in Rahbi t er ' s Hut Block; but tends to be r'a t her low and broken there. In Long Gully Block outcrop is often rarer.1..'b1..lt better exposed due to grea t er relief'. / Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Otematata River Otamatapaio River Otago north Thesis description Number of pages, maps, CDs, etc. 70 leaves. Ill, photos, diagms, Map (folded 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 1964Ryburn Creator An entity primarily responsible for making the resource Ryburn, RJ Date A point or period of time associated with an event in the lifecycle of the resource 1964 Title A name given to the resource A strip of Kaihikuan Sediments between the Otematata and Otamatapio Rivers, North Otago. Subject The topic of the resource Map Metamorphic geology Paleontology Sedimentary geology Structural geology Corbies Creek Group Kaihikuan Stage