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Ordovician and Pennsylvanian berthierine-bearing flint clays

Clays and Clay Minerals

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Abstract

The first occurrence of berthierine-bearing flint clays, one Ordovician and one Pennsylvanian in age, is discussed. These flint clays are characterized by a berthierine-kaolinite-boehmite assemblage. The Pennsylvanian flint clay from northeastern Kentucky is more typical in that it occurs in association with coal measures. Meanwhile, the Ordovician occurrence from northwestern Illinois is the oldest flint clay, forming before the evolution of terrestrial vascular plants.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Ordovician and Pennsylvanian berthierine-bearing flint clays
Series title:
Clays and Clay Minerals
Volume
48
Issue:
1
Year Published:
2000
Language:
English
Publisher:
Clay Minerals Soc
Publisher location:
Lawrence, KS, United States
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Clays and Clay Minerals
First page:
145
Last page:
149
Number of Pages:
5