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GEOREF RECORD

Liquid CO (sub 2) inclusions in olivine-bearing nodules and phenocrysts from basalts

Edwin Roedder
Liquid CO (sub 2) inclusions in olivine-bearing nodules and phenocrysts from basalts
American Mineralogist (1965) 50 (10): 1746-1782

Abstract

Inclusions of highly compressed, generally liquified, nearly pure CO (sub 2) were found in various minerals of all olivine-bearing nodules from basalts studied, in phenocrysts from basalt, in some eclogite xenoliths, and in kimberlite. Most CO (sub 2) inclusions are secondary but some appear to be primary; both types require the existence of immiscible globules of a dense supercritical CO (sub 2) fluid in the magma at high pressures. Both types indicate 10-15 km depth at time of filling or final rehealing; inclusions formed at greater depths may have decrepitated on eruption. The CO (sub 2) saturation of basalt (and other magmas) on a world-wide basis is significant in such petrological problems as vesiculation, composition of volcanic gases, origin of carbonatites, phenocrysts, and perhaps diamonds.


ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 50
Serial Issue: 10
Title: Liquid CO (sub 2) inclusions in olivine-bearing nodules and phenocrysts from basalts
Author(s): Roedder, Edwin
Pages: 1746-1782
Published: 1965
Text Language: English
Publisher: Mineralogical Society of America, Washington, DC, United States
Accession Number: 1965-019022
Categories: Igneous and metamorphic petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus., tables
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
Update Code: 1965
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