Masters Theses

Abstract

"The Graydon Springs Member of Southwest Missouri, here assigned to the Warner Formation of Pennsylvanian age was sampled and examined in order to document the lithology, sedimentology, source area, stratigraphic position, and overall geologic history of these channel-like bodies. The member is composed of an upper sandstone unit and a lower conglomerate unit.

Laboratory investigations of thin sections indicate that the sandstone unit is composed of well sorted, well rounded quartz and minor amounts of accessory minerals cemented with iron oxide, commonly hematite. Field observations indicate that the conglomerate unit is composed of very poorly sorted, very well rounded chert clasts, with rare carbonate clasts in a fine to coarse sand matrix cemented with either iron oxide or silica. Quartz grains are well rounded suggesting that they have undergone multiple cycles of transport and deposition. Paleocurrent data in the form of cross-beds and pebble imbrication suggest a southerly current flow. The most common sedimentological sequence observed in the field is a fining upward sequence. This, coupled with cumulative frequency distributions curves, the overall geologic framework, and member geometry suggest that the Graydon Springs Member represents a point bar sequence deposited by a meandering stream that flowed generally southward across western Missouri"--Abstract, p.ii

Advisor(s)

Landres, Robert G.

Committee Member(s)

Spreng, Alfred C., 1923-2012
Barr, David J.

Department(s)

Geosciences and Geological and Petroleum Engineering

Degree Name

M.S. in Geology and Geophysics

Publisher

University of Missouri--Rolla

Publication Date

Spring 1984

Pagination

viii, 73 pages

Note about bibliography

Includes bibliographical references (pages 54-56)

Rights

© 1984 Gregory Lee Easson, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 5042

Print OCLC #

11010853

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