Submitted on: 22 December 2002.
Revised on: 10 January 2003.
Accepted on: 19 January 2003.
PHYSICS AND CHEMISTRY OF THE EARTH
Submitted on: 15 January 2007.
Revised on: 24 February 2007.
Accepted on: 23 March 2007.
PHYSICS AND CHEMISTRY OF THE EARTH
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Submitted on: 09 June 1998.
Revised on: 04 July 1998.
Accepted on: 10 July 1998.
PHYSICS AND CHEMISTRY OF THE EARTH