Masters Theses

Keywords and Phrases

Potassium oxide; Sodium oxide

Abstract

"Flame photometric analyses for K₂O and Na₂O were run on 31 samples of the Precambrian igneous rocks of Missouri. Samples were collected from the field, physically prepared and dissolved by a standard method and a modified standard method of rapid silicate analyses. The K₂O, Na₂O values obtained are averages between two methods of analyses. The modified method reduces by 80% the time required to chemically digest a rock sample. The results for both methods are not significantly different. Curtin and Company Advanced Flame Photometer was used.

Results have been plotted on graphs and a chronological sequence for the named Precambrian igneous rock units of Missouri is indicated. It is suggested that the Middlebrook Group belongs to a separate magmatic cycle; that the Van East, Musco, and Bevos Groups belong to the same magmatic cycle; and that the basic intrusive rocks belong to a separate magmatic cycle"--Abstract, page ii.

Advisor(s)

Kennedy, Richard R. (Richard Ray)

Committee Member(s)

Sutherland, Richard Orlin
Proctor, Paul Dean, 1918-1999
Webb, William H.

Department(s)

Geosciences and Geological and Petroleum Engineering

Degree Name

M.S. in Geology

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1962

Pagination

v, 51 pages

Note about bibliography

Includes bibliographical references (pages 48-50).

Geographic Coverage

Missouri

Time Period

Precambrian

Rights

© 1962 Erwin Joseph Mantei, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Geology, Stratigraphic -- Precambrian
Igneous rocks
Geology -- Missouri
Flame photometry

Thesis Number

T 1390

Print OCLC #

5938122

Electronic OCLC #

982487280

Included in

Geology Commons

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Thesis Location

 
COinS