Hello there:
This is Manuel again, with serious doubts about metamorphism of mafic
rocks. Usually, it's accepted that between greenschists facies and
amphibolite facies, there is a transition zone in which appear assemblages
with Pl + Hbl + Act + Chl ± Ep (for low to medium pressure conditions) or
with Ab + Hbl + Ep (for high pressure conditions). Does anybody know of an
assemblage with just Pl + Hbl + Act, without Ab, Chl or Ep? If it's possible
to get this assemblage, What P-T conditions would indicate?
Thanks a lot
Manuel
--
Manuel Díaz Azpiroz
Dpto. Geología, Universidad de Huelva
Campus de La Rábida. Crtra. Palos de la Frontera s/n
21087 Huelva
Phone: 959-351000/351012
Fax: 959-530175
E-mail: [log in to unmask]
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