Dear Trisrota,
Diffusion is the answer. Look at the beautiful paper by Bernarnd Evans in
GEOLOGY, October 2010, v.38; no. 10; p. 879–882.
Cheers,
Dimitri
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Ass. Prof. Dr. Dimitrios K. Kostopoulos
National and Kapodistrian University of Athens
School of Science
Faculty of Geology and Geoenvironment
Department of Mineralogy and Petrology
Panepistimioupoli, Zographou
Athens 157 84
GREECE
Tel.: +30 - 210 - 72 74 127
Fax: +30 - 210 - 72 74 883
e-mail: [log in to unmask]
http://uoa.academia.edu/DimitriosKostopoulos
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