Submitted on: 13 August 2020.
Revised on: 12 November 2020.
Accepted on: 10 January 2021.
___________________Applied Earth Science-Transactions of the Institutions of Mining and Metallurgy
Submitted on: 22 January 2010.
Revised on: 20 May 2010.
Accepted on: 11 June 2010.
___________________Applied Earth Science-Transactions of the Institutions of Mining and Metallurgy
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Submitted on: 11 August 2024.
Revised on: 29 November 2024.
Accepted on: 19 December 2024.
___________________Applied Earth Science-Transactions of the Institutions of Mining and Metallurgy
Submitted on: 04 July 1998.
Revised on: 06 October 1998.
Accepted on: 01 November 1998.
___________________Applied Earth Science-Transactions of the Institutions of Mining and Metallurgy
Submitted on: 21 February 2021.
Revised on: 27 April 2021.
Accepted on: 22 June 2021.
___________________Applied Earth Science-Transactions of the Institutions of Mining and Metallurgy