Masters Theses

Abstract

"Abundance of noble gases extracted from Fig Tree Shale exhibit a marked deviation from the gas content of eclogitic rocks purported to be mantle material. The abundances of the heavy noble gases in shale were found to exceed the highest known meteoritic values. The abundances of the lighter noble gases were found to be comparable to the abundances of these gases in typical chondrites.

Temperature gradient analyses show that excess heavy gases are released at low temperatures. This is interpreted to indicate a preferential adsorption of the heavy noble gases on fine-grained sediments when these gases were being released from the interior of the earth.

Meteorite-like anomalies were observed in the isotopic composition of xenon released at elevated temperatures. These anomalies include Pasamonte-type fissiogenic xenon (X¹³¹ˉ¹³⁶), an excess of radiogenic Xe¹²⁹ and an apparent deficiency of the heavy isotopes (Xe¹³¹ˉ¹³⁶) in the trapped component.

Results from the temperature analyses showed that the separation of krypton from xenon exceeds the physical mass fractionation observed across the xenon isotopes. This indicates that the relative size or chemical nature of these gases dominates over the mass effect in determining the release pattern of these gases from shale"--Abstract, page ii.

Advisor(s)

Manuel, O. (Oliver), 1936-

Committee Member(s)

Park, John T.
Webb, William H.
Bolter, Ernst

Department(s)

Chemistry

Degree Name

M.S. in Chemistry

Sponsor(s)

National Science Foundation (U.S.)

Publisher

University of Missouri at Rolla

Publication Date

1967

Pagination

vi, 42 pages

Note about bibliography

Includes bibliographical references (pages 48-50).

Rights

© 1967 Robert Anthony Canalas, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Gases -- AnalysisGases, RareXenon -- Isotopes

Thesis Number

T 2011

Print OCLC #

5987532

Electronic OCLC #

794010776

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