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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.
141

Stratigraphy and sedimentation of the Yaquina formation, Lincoln County, Oregon.

Goodwin, Clinton John. January 1973 (has links)
Thesis (M.S.)--Oregon State University. / Part of illustrative matter in pocket. Includes bibliographical references (leaves 98-103). Also available via the World Wide Web.
142

Post mid-Cretaceous sequence stratigraphy and depositional history of northeastern Gulf of Mexico /

Liu, Qunling, January 2000 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2000. / Vita. Includes bibliographical references (leaves 257-265). Available also in a digital version from Dissertation Abstracts.
143

Climate change as a controlling parameter in sediment supply : the Nile Province

Palacios, Zonia H. January 2013 (has links)
This project studies the relation between the amount of sediment deposited in the Nile Submarine Cone (NSC) and the influence exerted by external controls such as climate change. A detailed calculation of sediment volumes was performed as well as a detailed estimation between intervals in order to assess sedimentation rates and dry mass per Ma for the NSC from the Late Oligocene to Recent. In contrast to previous studies, this project presents for the first time detailed calculations for ten intervals from Late Oligocene to Re- cent, including calculations for Pre-Messinian deposits since they also play an important role in the evolution of the NSC and in the history of erosion and deposition processes in the Nile province. The results of this project evidenced a connection between climate change and the amount of sediment carried by rivers as well as its final fate. Sedimenta- tion rate values obtained for each interval showed an increase in sediment supply during the Late Pliocene-Early Pleistocene, coincident with the i) final uplift of the Ethiopian and Somalian plateaus, ii) the drop in temperatures that took in the northern hemisphere as a consequence of the growth of the ice sheets, and iii) the increase in rainfall in the Ethiopian Highlands as a consequence of the African and Indian Monsoon that produced sapropel deposits and eroded sediments in north-eastern Africa. Pre-Messinian intervals showed low sedimentation rates values compared to Post-Messinian associated probably with an elevated evapo-transpiration cycle reducing the rainfall in the Ethiopian Highlands, des- pite the humid conditions that were present during certain ages (e.g. Zeit Wet Phase Late Miocene).
144

SURFACE SHEAR AT INCIPIENT MOTION OF UNIFORM SANDS

Ward, Bruce Douglas January 1968 (has links)
No description available.
145

Palynological, stratigraphic and chemical analyses of sediments in the Lothians with particular reference to the Lateglacial

Alexander, Alan John January 1985 (has links)
Palynological and stratigraphic investigations have been conducted on sediment cores for three sites in Lothian Region, Scotland: Balgone House, Broxmouth and Corstorphine. All phases of the Lateglacial period, as far as they are manifested in the Lothians at the sites studied, have been investigated with particular reference to the Younger Dryas, the main Interstadial, or Allerod, and also the evidence for the colder conditions that preceded it which are presumed to represent Older Dryas-type vegetation. Further light has been cast on the development of the Postglacial broad - leaved forests. The Cambridge computer program POLLDATA MKV was used to perform the necessary calculations and controlled a graph plotter to generate pollen diagrams. A series of subroutines is described that translated the calls to the Cambridge graphics subroutine library. This may serve as a model for other installations. Objective numerical zonation methods are applied to the pollen data. These methods are used not only to zone the pollen series but also to aid in the generation of hypotheses regarding vegetation changes. Chemical analyses of the sediments from Balgone House were undertaken. The results obtained are at variance with those from published work and it is proposed that the reason is that the chemical pre-treatment of samples employed locally may be less efficient in leaching the cations from the mineral fraction.
146

Southern Ocean circulation and sediment sourcing

Noble, Taryn Lee January 2012 (has links)
No description available.
147

Depositional models and the Shinarump Member ant the Sonsela Sandsotone Bed of Chinle Formation, northeastern Arizona and northwestern New Mexico

Trevena, Arthur Spencer January 1975 (has links)
No description available.
148

Sedimentation and diagenesis of back-reef deposits, Miette and Golden Spike buildups, Alberta

Burrowes, O. Geoff January 1977 (has links)
No description available.
149

A Novel Flocculant for Enhanced Dewatering of Oil Sands Tailings

Chan, Margo Chi Wing Unknown Date
No description available.
150

The role of sediment gradation on channel armoring

Little, William Campbell 05 1900 (has links)
No description available.

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