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Geologic framework of nonmarine cretaceous-tertiary boundary sites, raton basin, new mexico and colorado

Science

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Abstract

Indium concentrations are anomalously high at the palynological Cretaceous-Tertiary boundary in fluvial sedimentary rocks of the lower part of the Raton Formation at several localities in the Raton Basin of New Mexico and Colorado. The iridium anomaly is associated with a thin bed of kaolinitic claystone in a discontinuous carbonaceous shale and coal sequence.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Geologic framework of nonmarine cretaceous-tertiary boundary sites, raton basin, new mexico and colorado
Series title:
Science
Volume
223
Issue:
4641
Year Published:
1984
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Science
First page:
1183
Last page:
1186
Number of Pages:
4