Currently, GEM Software includes three code packages and a default thermodynamic database:
v.3 (GEMS3): the interactive code package for geochemical
the standalone code for solving for geochemical equilibria (with
the generic parameter-fitting code coupled with the GEMS3K code
GEMS TDB: the
default chemical thermodynamic database of GEM-Selektor package
GEM software is distributed "as is" in its present state of development
by the Laboratory for Waste Management (LES)
of the Paul Scherrer Institute (PSI)
with two purposes:
Permission to download and use GEM Software is hereby granted free of
charge for educational and academic research purposes, subject to
acceptance of Terms and Conditions of Use.
In particular, in any publication of your results obtained using
GEM-Selektor or GEMS3K codes, please, cite this web page URL
(http://gems.web.psi.ch) and the following papers:
Kulik D.A., Wagner T., Dmytrieva S.V., Kosakowski G., Hingerl F.F., Chudnenko K.V., Berner U. (2013): GEM-Selektor geochemical modeling package: revised algorithm and GEMS3K numerical kernel for coupled simulation codes. Computational Geosciences 17, 1-24. doi.
Wagner T., Kulik D.A., Hingerl F.F., Dmytrieva S.V. (2012): GEM-Selektor geochemical modeling package: TSolMod library and data interface for multicomponent phase models. Canadian Mineralogist 50, 1173-1195. doi.
GEM Software is always under development (see Newsticker).
Copyright (C) 2003-2020 GEMS Development Team