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GEOREF RECORD

Scan electron micrographs of kaolins collected from diverse environments of origin; I

W. D. Keller
Scan electron micrographs of kaolins collected from diverse environments of origin; I
Clays and Clay Minerals (June 1976) 24 (3): 107-113

Abstract

Scan electron micrographs are shown of (1) kaolinite and dickite which crystallized from solution within cavities, (2) kaolinite weathered from clastic primary silicate material, (3) residual kaolinite from primary silicate rock, (4) kaolinite above and below a basal unconformity on granitic rock, and (5) hydrothermally altered kaolinite. The texture of kaolin reflects the environment in which the clay was formed. Euhedral crystals of kaolin minerals characterize cavity fillings. The weathering environment produces large crystal flakes of kaolinite, expanded books, mats of elongates, high porosity, and low bulk density (less than 2.0). The hydrothermal environment produces smaller crystals, singles, sheaves and packets of crystals, low porosity and high bulk density (2.0 and above). The interrelationships of genetic environment of kaolin minerals and accompanying texture are discussed in light of available geochemical information.


ISSN: 0009-8604
Coden: CLCMAB
Serial Title: Clays and Clay Minerals
Serial Volume: 24
Serial Issue: 3
Title: Scan electron micrographs of kaolins collected from diverse environments of origin; I
Author(s): Keller, W. D.
Affiliation: Univ. Mo., Columbia, Mo., United States
Pages: 107-113
Published: 197606
Text Language: English
Publisher: Clay Minerals Society, Clarkson, NY, United States
References: 35
Accession Number: 1977-032061
Categories: Mineralogy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: plates
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland
Update Code: 1977
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