ZEOLITES OF CLINOPTILOLITE-HEULANDITE TYPE IN SEDIMENTS OF SOUTH-EAST ENGLAND

被引:33
作者
BROWN, G
CATT, JA
WEIR, AH
机构
关键词
D O I
10.1180/minmag.1969.037.288.08
中图分类号
P57 [矿物学];
学科分类号
070901 ;
摘要
Clinoptilolite-heulandite is reported from Jurassic, Cretaceous, and Paleocene sediments in southeast England. It occurs mainly in 1 to 20 m size fractions, and is associated with abundant montmorillonite and often also with glauconite and amorphous silica or low-temperature disordered cristobalite- tridymite. Its mode of occurrence and the associated minerals suggest an authigenic origin, but there is no evidence that the sorce material was volcanic.
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