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Geometry of Upper Cretaceous bentonite beds: implications about volcanic source areas and paleowind patterns, western interior, United States

Geology

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Abstract

Four bentonite beds near the Cenomanian-Turonian Stage boundary (c90 Ma) can be traced through much of the western interior of the USA. Isopach maps constructed for these bentonite beds indicate that volcanic source areas were positioned both northwest and southwest of the central USA western interior basin and also indicate both easterly and southeasterly paleowind directions. Volcanism of this age has not been reported previously in the southern source area. -Author

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Geometry of Upper Cretaceous bentonite beds: implications about volcanic source areas and paleowind patterns, western interior, United States
Series title:
Geology
Volume
16
Issue:
9
Year Published:
1988
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Geology
First page:
835
Last page:
838
Number of Pages:
4