Welcome To The Orvana Minerals HUB On AGORACOM
Operations: Copper-gold-silver-mine in Bolivia, Gold/copper mine/Mill in Spain and its developing copper project in Michigan
Message: Data Collection for Environmental Studies Commenced at Copperwood Project
| February 11, 2009 |
| Orvana Minerals Corp. Announces Data Collection for Environmental Studies Commenced at Copperwood Project in Michigan |
| TORONTO, ONTARIO--(Marketwire - Feb. 11, 2009) - Orvana Minerals Corp. (TSX:ORV) is pleased to announce that the initial phase of an environmental impact assessment of Orvana Resources US Corp.'s Copperwood Project has been completed. The environmental impact assessment's initial phase of surface and subsurface water sampling is the first step in the two-year long process of developing a seasonal and long-term characterization of the site, as required by the State of Michigan as part of its mine permit application process. In completing this phase of the assessment, 20 holes for 4,065 feet (1,239 meters) were drilled, packer-tested, and completed as groundwater monitoring wells. These drill holes encountered between 70 and 108 feet (21 to 33 meters) of fine-grained, unconsolidated glacial sediments overlying the bedrock. Fourteen drill holes were completed in bedrock above the copper-bearing interval and six holes intersected the copper-bearing interval. In addition, a meteorological and air-quality monitoring station was installed on the site and data collection commenced on December 18, 2008. Other studies required as part of the environmental impact assessment, including studies of the site's ecosystem, habitat features and terrestrial and aquatic flora and fauna, have also commenced. It is currently anticipated that the environmental impact assessment will be completed in early 2011. Orvana President and Chief Executive Officer, Carlos Mirabal said, "Orvana's committment to responsible environmental stewardship is demonstrated by the fact that the first significant expenditures at Copperwood by Orvana have been focused on the environment." A scoping-level environmental geochemical examination has been completed on eight reject samples of mineralization, hanging wall, and footwall rocks from three historic drill holes within the land covered by the Copperwood mineral leases. Interpretation of the scoping-level geochemical test results by Geochimica, Inc. indicates that Copperwood rocks are very unlikely to generate acid drainage and, consequently, may be characterized as non-reactive under Michigan mining laws. In addition, the rock pile created by the extraction of copper-bearing rock from underground workings in the 1950s was recently trenched and sampled. This rock pile has been subjected to approximately 50 years of wet, oxidizing conditions. Based on visual observations, the rocks appear to be non-reactive. Orvana will undertake additional environmental geochemical studies to validate these test results and observations. Theodore Bornhorst, Ph.D., P. Geo., a consultant to Orvana and a qualified person as defined in National Instrument 43-101 - Standards of Disclosure for Mineral Projects, has reviewed and approved the scientific and technical content of this news release. About Orvana Orvana Minerals Corp. is a Canadian mining and exploration company based in Toronto, Canada, involved in the evaluation, development and mining of precious and base metal deposits in the Americas. The Company owns and operates the Don Mario Mine in eastern Bolivia. Orvana's long-term goal is to become a low cost, long-life, multi-mine gold and base metals producer in the Americas. Orvana's shares have been listed on the Toronto Stock Exchange since 1992 under the trading symbol ORV. Further information on Orvana may be found on the Company's website at www.orvana.com and on SEDAR at www.sedar.com. |
12 Recommendations
Loading...
Loading...
New Message
Please
login
to post a reply