real geological applications on GRASS?

Hello GRASS-World,

  are there real geology orientated modules for GRASS.

  e.g:

    - projection of faults, lineations etc. into
      lower hemisphere diagrams

        - creating geological profiles

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Dipl. Geol. Andreas Holz email: asholz@cip.informatik.uni-erlangen.de
Institut fuer Geologie und Mineralogie
Schlossgarten 5
W-8520 Erlangen
GERMANY