Submitted on: 15 February 2016.
Revised on: 12 April 2016.
Accepted on: 16 May 2016.
___________________GEOMORPHOLOGY---ELSEVIER
Submitted on: 01 December 2013.
Revised on: 24 February 2014.
Accepted on: 21 April 2014.
___________________GEOMORPHOLOGY---ELSEVIER
Submitted on: 11 May 2015.
Revised on: 19 August 2015.
Accepted on: 09 September 2015.
___________________GEOMORPHOLOGY---ELSEVIER
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Submitted on: 23 March 2006.
Revised on: 06 May 2006.
Accepted on: 04 June 2006.
___________________GEOMORPHOLOGY---ELSEVIER
Submitted on: 22 April 2003.
Revised on: 08 July 2003.
Accepted on: 20 July 2003.
___________________GEOMORPHOLOGY---ELSEVIER