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From: B-Haile (eritrea.lave@comhem.se)
Date: Thu Feb 24 2011 - 17:47:35 EST
Canadian firm to undertake prefeasibility study into Eritrea copper/zinc/gold deposits
By: Megan Wait
25th February 2011
TEXT SIZE Junior miner Sunridge Gold has engaged Snowden Mining Industry Consultants and GBM Minerals Engineering Con-sultants to conduct a prefeasibility study on its combined Emba Derho, Adi Nefas and Gupo copper/zinc/gold deposits, now called the Asmara North deposits, in Eritrea.
Canada-based Snowden will manage the study, assisted by GBM, which boasts engineering design expertise in process plant and the infrastructure of mining projects. Further, consulting engineer Knight Piesold is responsible for the design of the tailings facility and waste management. The prefeasibility study will consider a centralised process plant using flotation for the recovery of the base metals and will study various mining options over a forecast life-of-mine of between 10 and 14 years.
The study will further investigate process options for the development of a gold recovery plant to process gold mineralised material from the 'gold cap' at the Emba Derho deposit, the nearby Gupo gold deposit and other possible nearby surface zones of gold mineralisation to enhance the economics of the deposits.
The completion of this report is expected in the fourth quarter of 2011 and Sunridge projects vice-president Scott Ansell comments that the Snowden-GBM-Knight Piesold team brings strong mine and process design experience for the completion of a successful prefeasibility study and that the study will provide the direction for the development of the Asmara North deposits to production.
The Asmara North deposits consists of three distinct deposits, with the Emba Derho volcanic massive sulphide (VMS) deposit hosting 62-million tons of copper/zinc/gold that was the subject of a positive scoping study by Wardrop Engineering in 2009.
The second Adi Nefas deposit, which is located about 6 km from Emba Derho, is a much smaller but higher-grade zinc/gold/ copper VMS deposit. Lastly, the Gupo gold deposit is about 8 km from Emba Derho and is a near-surface structurally controlled gold deposit that was mined during the Italian colonial period.
The Debarwa deposit is located close to paved road access, which is about 45 minutes' drive from the Asmara North deposits. This high-grade copper/gold/zinc VMS deposit is currently in feasibility study. The prefeasibility study to be conducted by Snowden and GBM will examine options to transport ore from Debarwa to a central process plant facility located at the Asmara North project.
Edited by: Martin Zhuwakinyu
http://www.miningweekly.com/article/snowden-to-carry-out-prefeasibility-study-at-asmara-2011-02-18
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