Jorge,
Read the works of Evans, Trommsdorff and Frost. There is also
an excellent work by Hess, I think in the 30's, on blackwalls that
you should consult.
eric
>Dear members,
>Presently I am working on the mineralogy and origin of ultramafic schists
>found in the Central Cordillera of Colombia. These are found in a 10-meter
>wide zone between amphibolite at the base and dunite at the top. The dunite
>is believed to have been overthrusted on the amphibolite.
>The assemblages are:
>chlorite-tremolite
>tremolite-antophyllite
>actinolite-talc-chlorite
>antigorite-tremolite-antophyllite-chlorite-relict olivine
>I would very much appreciate information on similar rocks.
>Thank you
>Jorge Julian Restrepo
>
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