石油与天然气地质 ›› 1985, Vol. 6 ›› Issue (2): 138-140.doi: 10.11743/ogg19850204

• 论文 • 上一篇    下一篇

南流江三角洲地区自生矿物——铁代皂石的特征

孙和平1, 李从先1, C.D.柯蒂斯2   

  1. 1. 同济大学海洋地质系;
    2. 英国谢菲尔大学地质系
  • 收稿日期:1984-12-27 出版日期:1985-06-25 发布日期:2012-01-16

ON AUTHIGENIC Fe-SUBSTITUTED SAPONITE IN DELTA AREA OF THE NANLIUJIANG RIVER,GUANGXI

Sun Heping Li Congxian1, C.D. Curtis1   

  1. 1. Department of Marine Geology, Tongji University;
    2. Department of Geology, Sheffield University, Britain
  • Received:1984-12-27 Online:1985-06-25 Published:2012-01-16

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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 K2O 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.