https://theses.otagogeology.org.nz/files/original/14decd9e7c499d7b23d9bef821630aaa.pdf c385479ff67aa66bedf150350ab15d38 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 ((170.507489481948738 -45.705629600347727,170.778413462337227 -45.709435924161355,170.772666791954634 -45.939135748506921,170.489572472870407 -45.934454922522789,170.507489481948738 -45.705629600347727)) Author last name Last name of the Author Eden Project type Is it an MSc, PhD, BSc(Hons) or PGDipSci? BSc(Hons) Advisers Who supervised/advised this student Landis, C.A. Abstract The Abstract for this thesis Loess of the Dunedin area from Warrington to Blackhead is described. Two textural types of loess are recognised - a coarse textured loess (poorly sorted, fine skewed, medium to fine sand) is restricted to the seaward slopes of the Otago Peninsula and one locality in Blueskin Bay. The location of the coarse textured loess suggests derivation from adjacent beaches. Fine textured (poorly sorted,fine skewed,medium silt) loesses of varying thickness occur throughout the remainder of the region. The bimodal grain size of some of these deposits adjacent to the coast suggests an origin from the continental shelf. Mineralogy in the loesses is fairly uniform, [quartz, alkali feldspar (mostly albite) are the main two minerals; other minerals include epidote, hornblende, augite (derived from the local volcanic sequence), hypersthene, actinolite. muscovite, plagioclase and chlorite] except for a higher proportion of heavy minerals in the coarse textured loesses. Sponge spicules are also found in the loess. Mineralogy does not appear to be a useful criterion for distinguishing between loesses of different age. Stratigraphic studies reveal few sequences involving two or more loesses in succession. These are given special attention and interbedded beach sands are related to altitude for regional Pleistocene correlation and age determinations. The loess sequences within the region span the latter part of the Pleistocene, with the oldest loess possibly representing the antepenultimate (Waimaungan) glaciation. Much of the loess is thought to have originated mainly from the continental shelf during periods of low sea level, as suggested by Raeside 1964. However uniformitarian considerations and some mineralogic data suggest a secondary inland origin. Department The department where the student is studying primarily. Geology Named locality Named locality describing the field area location. Dunedin Thesis description Number of pages, maps, CDs, etc. 80 leaves : illus. (part col.) maps (1 fold in pocket) ; 26 1/2 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 1970Eden Creator An entity primarily responsible for making the resource Eden, D. N. Date A point or period of time associated with an event in the lifecycle of the resource 1970 Title A name given to the resource Loess of the Dunedin district Subject The topic of the resource Map Sedimentary petrology alkali feldspar Pleistocene quartz sponge spicules textural types