Noble Gases in the Earth's Mantle

Author

D. P. Thompson
Asish R. Basu
Edward W. Hennecke
Oliver Manuel, Missouri University of Science and TechnologyFollow

Abstract

The abundances and isotopic compositions of noble gases in two samples from ultramafic xenoliths in alkali basalt, a young kaersutitic amphibole separated from a peridotite xenolith from Dish Hill, California and an ancient whole-rock lherzolite xenolith from Baja California, are reported and compared with the results of analyses on other mantle samples. In addition to previously recognized excesses of ³He and ¹²⁹Xe, our results indicate that ambient gases in the mantle show a general enrichment of the lighter-mass nonradiogenic isotopes of Ar, Kr and Xe, and Ar with ⁴⁰Ar/³⁶Ar = 3 · 10².

Recommended Citation

D. P. Thompson et al., "Noble Gases in the Earth's Mantle," Physics of the Earth and Planetary Interiors, vol. 17, pp. 98 - 107, Elsevier, Sep 1978.

The definitive version is available at https://doi.org/10.1016/0031-9201(78)90051-1

Department(s)

Chemistry

International Standard Serial Number (ISSN)

0031-9201

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1978 Elsevier, All rights reserved.

Publication Date

01 Sep 1978