Clinopyroxene-bearing Glass Spherules Associated with North American Microtektites

Chacko John; B. P. Glass

doi:10.1130/0091-7613(1974)2<599:CGSAWN>2.0.CO;2

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Research Article| December 01, 1974

Clinopyroxene-bearing Glass Spherules Associated with North American Microtektites

Chacko John;

Chacko John

1

Department of Geology, University of Delaware, Newark, Delaware 19711

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B. P. Glass

1

Department of Geology, University of Delaware, Newark, Delaware 19711

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Author and Article Information

Chacko John

1

Department of Geology, University of Delaware, Newark, Delaware 19711

B. P. Glass

1

Department of Geology, University of Delaware, Newark, Delaware 19711

Publisher: Geological Society of America

First Online: 02 Jun 2017

Online ISSN: 1943-2682

Print ISSN: 0091-7613

Geological Society of America

Geology (1974) 2 (12): 599–602.

https://doi.org/10.1130/0091-7613(1974)2<599:CGSAWN>2.0.CO;2

Abstract

Crystallite-bearing glass spherules (<200 µm diam) are associated with North American microtektites in a Caribbean deep-sea core (RC9–58). X-ray and chemical data indicate that the crystalline phase is clinopyroxene (probably augite). The clinopyroxene-bearing spherules are similar in composition to bottle-green, high-magnesium microtektites. It appears that the clinopyroxene-bearing spherules were formed by the same event that produced the North American tektite strewnfield ∼35 m.y. ago.

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