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Flint-clay facies illustrated within one deposit of refractory clay

W. D. Keller
Flint-clay facies illustrated within one deposit of refractory clay
Clays and Clay Minerals (June 1978) 26 (3): 237-243


The flint-clay facies, originally proposed from widespread stratigraphic evidence, is represented by four of its six members within a single commercial deposit of Cheltenham refractory clay in Missouri. Scan electron micrographs show progressive changes in texture from plastic refractory clay (as in ball-clay "swirl" texture) through semi-plastic, semi-flint, to typical flint clay (recrystallized, well-ordered kaolinite). Micrographic evidence supports the interpretation of the origin of the Cheltenham clay earlier made from field and macroscopic evidence. Source material from nearby residual, weathered clay was transported into paludal basins, "digested," partly recrystallized to kaolinite, brecciated and reconsolidated, essentially completed before being covered by younger Pennsylvanian-age sediments.

ISSN: 0009-8604
Serial Title: Clays and Clay Minerals
Serial Volume: 26
Serial Issue: 3
Title: Flint-clay facies illustrated within one deposit of refractory clay
Author(s): Keller, W. D.
Affiliation: Univ. Mo.-Columbia, Columbia, Mo., United States
Pages: 237-243
Published: 197806
Text Language: English
Summary Language: Russian
Summary Language: German
Summary Language: French
Publisher: Clay Minerals Society, Clarkson, NY, United States
References: 12
Accession Number: 1980-009860
Categories: Sedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
N39°04'60" - N39°19'60", W91°40'00" - W91°30'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland
Update Code: 1980
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