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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Cambrian stratigraphy of Oklahoma

Frederickson, Edward Arthur, January 1942 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1942. / Typescript. Includes abstract and vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 118-120).
2

A comparison of six late Paleozoic siliceous shales Ouachita Mountains, Oklahoma /

Babcock, Laurel Clarke. January 1969 (has links)
Thesis (M.A.)--University of Wisconsin, 1969. / Cover title. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 57-58).
3

The Palaeozoic stratigraphy and palaeontology of north-western New South Wales

Warris, B. J. January 1967 (has links)
Thesis (Ph. D.)--University of Sydney, 1967. / 3 maps and 4 charts on folded leaves in case. Bibliography: p. 438-470. Also available in print form.
4

Nannofósiles del cretácico de la Cordillera Bética (sur de España) bioestratigrafía /

Aguado Merlo, Roque. January 1994 (has links)
Thesis (doctoral)--Universidad de Granada, 1994. / At head of title: Facultad de Ciencias, Departamento de Estratigrafía y Paleontología. Includes bibliographical references (p. [389]-413.
5

Stratigraphie und Mikrofauna des Klippenmalm

Weiss, Hans, January 1949 (has links)
Inaug.-Diss.--Zürich. / Vita. Bibliography: p. 289-300.
6

Stratigraphy and paleontology of the Mississippian bioherms in the northern part of the Sacramento Mountains, New Mexico,

Ruedisili, Lon C. January 1968 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1968. / Vita. Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
7

Stratigraphy and paleontology of the Frontier Formation, southern Montana

Young, Keith, January 1948 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1948. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 99-101).
8

Genesis and diagenesis of Santonian to Early Campanian (Cretaceous) phosphatic chalks of the Anglo-Paris Basin

Jarvis, Ian January 1980 (has links)
The phosphatic chalks of the Anglo-Paris Basin are granular phosphorites of Santonian to early Campanian age. They were deposited in erosional cuvettes up to 1 km long, 250 m wide and 30 m deep, incised into white chalks. Most are situated in the Picardy region of northern France. Cuvettes are floored by strongly indurated and mineralized basal hardgrounds developed in intraclastic sediments. The hardgrounds are penetrated by prominent phosphatic-chalk filled Thalassinoides burrows and overlain by intraclast-pebble lags containing 'Terebella' phosphatica Leriche, Diblasus arborescens Parent and Lopha semiplana (J. Sowerby). Lithification occurred a few centimetres below the sediment/water interface in a sediment of increased permeability, and is geochemically discernible ~90 cm below the hardground surface. Glauconitization was restricted to replacement of clay minerals during the early development of the hardground, later phosphatization replacing carbonate. Actinocamax verus Miller occurs in basal phosphatic chalks and a bed of Gonioteuthis quadrata quadrata (Blainville) occurs at the summit. The Gonioteuthis Bed is commonly underlain by, but separated from, a bed of Offaster pilula (Lamarck). The proportion of faecal pellets, phosphatic ooliths, echinoderm fragments and benthonic foraminiferans decline above the basal hardgrounds as the phosphorites become finer-grained and less phosphatic. Inoceramid prisms or pelagic foraminiferans are the dominant component of poorer phosphatic chalks. Intraformational slump folds and hardground mélanges occur at the base of some successions. The palaeobiology of belemnites is considered in detail and it is concluded that the Gonioteuthis Beds were the products of massmortalities accompanying reproduction. Pelletal phosphate was formed by the replacement of carbonate during early diagenesis in an organic-rich, anoxic environment and water depths of <150 m. Current activity and subsurface anoxia were intermittent; colonization, bioturbation and winnowing alternating with quiescent, anoxic phases of mineralization. Phosphatic chalk cuvettes were eroded by a proto-Gulf Stream during a eustatic regression. Upwelling of this current was the main source of phosphate in the phosphatic chalks.
9

Contributions to palaeontology and stratigraphic correlation of the late precambrian in China and Australia /

Sun, Weiguo. January 1985 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Geology and Geophysics, 1986.
10

Stratigraphy and paleontology of the Brownsport formation (Silurian) of western Tennessee

Amsden, Thomas William. January 1949 (has links)
Thesis--Yale. / Bibliography: p. [117]-126.

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