南流江三角洲地区自生矿物——铁代皂石的特征

孙和平; 李从先; C.D.柯蒂斯

doi:10.11743/ogg19850204

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南流江三角洲地区自生矿物——铁代皂石的特征
ON AUTHIGENIC Fe-SUBSTITUTED SAPONITE IN DELTA AREA OF THE NANLIUJIANG RIVER,GUANGXI
1985年6卷第2期页码：138-140
网络首发：1985-06-25，

纸质出版：1985
DOI： 10.11743/ogg19850204
稿件说明：

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孙和平, 李从先, C.D.柯蒂斯. 南流江三角洲地区自生矿物——铁代皂石的特征[J]. 石油与天然气地质, 1985,6(2):138-140. DOI： 10.11743/ogg19850204.

孙和平, 李从先, C.D.柯蒂斯. ON AUTHIGENIC Fe-SUBSTITUTED SAPONITE IN DELTA AREA OF THE NANLIUJIANG RIVER,GUANGXI[J]. 1985, 6(2): 138-140. DOI： 10.11743/ogg19850204.

摘要

在广西南流江三角洲的研究中

发现大量貌似海绿石的墨绿色矿物颗粒。经分析表明

它们既不是海绿石

也不是绿脱石

而是铁代皂石。

Abstract

In the study of the Nanliujiang river delta

Beibu Gulf

abundant greenish dark mineral that looks like glauconite has been found.X-ray powder diffra-ctograms show strong reflections at 15.3Å and at 1.53/1.54Å.These suggest smectite.There are no reflections in the 10Å region(8.85°2θ)which would be expected for glauconite.The K

O content(1.5%±)is also much lower than would be anticipated(7-9%).The result of formula calculation from electron microprobe analysis is very satisfactory for a trioctahedral

Fe-substituted saponite.Its distribution and formation environment have also been discussed.