Comstock Mining Announces Results Of Successful Spring Drilling Program
Virginia City, NV (August 12, 2010) -- Comstock Mining Inc. (“Comstock Mining” or the Company”)(OTCBB: LODE) announced today the results of its Spring 2010 drilling program. The drilling, concentrated in the Lucerne resource area of the Company’s Comstock Mine Project, was designed to increase the Company’s knowledge in several locations designated as possible starter pit locations, and also to explore extensions of the precious metals mineralization to the east and to the north of the previous drilling. The program was completed with 51 reverse circulation (RC) holes totaling 29,913 feet.
“The drilling results exceeded our expectations, with significant mineralized intervals of 20 or more consecutive feet encountered in 42 of the 51 holes, and 100 or more consecutive feet in 16 of the 51 holes,” stated Corrado DeGasperis, Comstock Mining’s Chief Executive Officer. “The results are a tribute to the thorough planning and execution of our geological team,” continued Mr. DeGasperis. “We are currently incorporating these drill results into a new technical report and they represent an important step toward our goal of increasing shareholder value by increasing our mineral resources and resuming mine production.”
“Our geological team developed a new conceptual model for the Silver City fault zone, that we used to design this drilling program,” stated Larry Martin, Comstock Mining’s Chief Geologist. “The success of this program continues to validate our working model, and provides some significant additional targets for our next round of exploration.”
The 2010 Spring program focused upon select locations of the Lucerne resource area, designated the Lucerne-Woodville, Hartford and Justice-Keystone areas and the East Side target. Drill intervals of contiguous mineralized material (gold content greater than 0.010 ounces per ton (opt) and length greater than 20 feet) were intercepted in 42 of the 51 RC drill holes. The following provides a brief description for and highlights selected drill holes of each area. A table listing all of the drill holes in the program is included as an appendix.
The Lucerne-Woodville area extends from the previously-mined Lucerne pit northeasterly to the area of the historic Woodville bonanza. The 19 RC drill holes completed in this area totaled 2,369 feet, and 18 of the 19 drill holes intercepted significant precious metals mineralization. The significant mineralization and the patented land position make it a possible starter pit location.
The following selected three drill holes and intercepts highlight the length and grade of mineralization that has been encountered in the favorable host rocks and areas of structural complexity in the Lucerne-Woodville area. Drill hole P10-05 intercepted four specific zones that reflect the current structural model of multiple sub-parallel faults collectively delineating the Silver City fault zone.
East Side Target
The south end of the historic Lucerne pit is an area of structural complexity. Multiple cross-cutting, northeasterly striking structures are exposed on the western high wall, a remnant from historic open pit mining operations. These structures were projected to the east, where their intersection with the Gold Canyon fault is designated the East Side target. The Gold Canyon fault is the eastern-most fault within the Silver City fault zone, a series of sub-parallel faults including the Gold Canyon, Silver City, Billie the Kid and Drysdale faults.
Seven reverse circulation drill holes were positioned to test the target and a total of 4,879 feet of drilling was completed. All seven of the drill holes in this targeted area intercepted significant precious metals mineralization. The following are highlights of the mineralized intervals from three selected drill holes.
The Hartford area is located west of the historic Lucerne pit, above the remnant high wall mentioned previously. The mineralization is structurally controlled by east to west and northeast faults and a quartz porphyry intrusive body.
Initially nine drill holes, with a total depth of 2,595 feet, were located to test the near surface and outcropping mineralization, which makes this area another possible location for a starter pit on patented mining claims. Significant gold mineralization was intercepted in three of the nine holes, shown below.
The Justice and Keystone target areas are located north of the Lucerne-Woodville area, along the northern projection of the Silver City fault zone. The southern boundary of the Justice patented claim abuts the northern end of the Lucerne patent, with the Keystone patented claim adjoining it to the north.
The exploration efforts for the Justice and Keystone targets are in an early state. During the 2010 Spring program, 16 drill holes were completed in this area, with a total of 10,070 feet of drilling. Geologic logs of the drill holes show that the thickness of the volcanic pile has increased just north of the Lucerne-Woodville area. A review of the drill results compared with the historic mine development demonstrates a periodicity of stope development and expansion of mineralization within receptive volcanic host rocks along the strike and down the dip of the Silver City fault zone. This finding has established a sound basis for future drilling in this area. The following four drill holes highlight the mineralized intervals intercepted.
The following map shows a portion of Comstock Mining’s Lucerne resource area with the locations of the RC holes in the 2010 Spring drilling program. The featured holes from each of the targeted areas are labeled.
Comstock Mining's Spring 2010 Drilling, with Highlighted Holes
“The Lucerne resource area is approximately 5000 feet long, with an average width of 600 feet. The near-surface mineralization discovered in the East Side Target is a strong validation of our exploration model. We look forward to continuing with additional targets in our Fall drilling program. Our methodical approach toward further exploration of the Comstock Lode is steadily advancing us toward production in 2011,” concluded Mr. DeGasperis.
About Comstock Mining Inc.
Comstock Mining Inc. is a North American precious metals mining company, focused in Nevada, with extensive, contiguous property in the Comstock Lode District. The Company began acquiring properties in the Comstock in 2003. Since then, the Company has consolidated a significant portion of the Comstock Lode District, amassed the single largest known repository of historical and current geological data on the Comstock Lode region, secured permits, built an infrastructure and brought the exploration project into test mining production. We continue acquiring additional properties in the district, expanding our footprint and creating opportunities for exploration and mining. The goal of our strategic plan is to deliver stockholder value by validating qualified resources (at least measured and indicated) and reserves (probable and proven) of 3,250,000 gold equivalent ounces by 2013, and commencing commercial mining and processing operations by early 2011, with annual production rates of 20,000 gold equivalent ounces.
Cautionary Note to U.S. Investors
This press release uses the terms “measured resources,” “indicated resources,” and “inferred resources,” which are calculated in accordance with the Canadian National Instrument 43-101 and the Canadian Institute of Mining and Metallurgy Classification system. The United States Securities and Exchange Commission (the “SEC”) does not recognize these terms and the SEC guidelines (Industry Guide 7) provide that such terms shall not be included in a registrant’s filings with the SEC (unless required to be disclosed by foreign or state law). The SEC permits U.S. mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. “Inferred resources” have a great amount of uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all or any part of an “inferred mineral resource” will ever be upgraded to a higher category. U.S. investors are cautioned not to assume that any part or all of a measured, indicated or inferred resource exists or is economically or legally mineable. U.S. investors are urged to consider closely the disclosure in our Form 10-K which may be secured from us, or from the SEC's website at http://www.sec.gov.
This press release and any related calls or discussions may contain forward-looking statements. All statements, other than statements of historical facts, are forward-looking statements. Forward-looking statements include statements about matters such as: future prices and sales of and demand for our products; future industry market conditions; future changes in our exploration activities, production capacity and operations; future exploration, production, operating and overhead costs; recapitalization and balance sheet restructuring activities (including debt-for-equity exchanges, land transactions, capital raising and other activities); operational and management restructuring activities (including implementation of methodologies and changes in the board of directors); future employment and contributions of personnel; tax and interest rates; capital expenditures and their impact on us; nature and timing of restructuring charges and the impact thereof; productivity, business process, rationalization, restructuring, investment, acquisition, consulting, operational, tax, financial and capital projects and initiatives; contingencies; environmental compliance and changes in the regulatory environment; offerings, sales and other actions regarding debt or equity securities; and future working capital, costs, revenues, business opportunities, debt levels, cash flows, margins, earnings and growth.
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Appendix – Comstock Mining Complete Spring Drill Program Results
The following table includes all of the significant mineralized intervals from Comstock Mining's Spring 2010 reverse circulation (RC) drilling program. A mineralized interval is included only if it contains at least ten consecutive feet of mineralization, with a gold assay greater than or equal to 0.010 ounces per ton. The program included 51 holes, totaling 29,913 feet of drilling. The following table of results is organized by target area.
Fri, Aug 13, 2010