Hi List Members
I am looking for articles about geochemical aspects of bentonite. The
bentonite main include volcanic ash fall some hundreds millions years ago,
especially during Paleozoic. This very old ash fall bed is changing to
clay; some time called tenstone, clay etc. I have just found some articles
about it. I am interesting elemental and isotopic aspects to confirm a
sample are ashfall exactly.
Thanks
Wang Wei

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Wei WANG  Ph.D.  Associate Professor
Nanjing Institute of Geology and Paleontology
Chinese Academy of Sciences
Nanjing, 210008
China
Phone:86-25-6637395(O) -5400086(H)
Fax:86-25-3357026(O)
Mailto:[log in to unmask]
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