Corriente Resources Announces Rio Tinto to Drill Exotic Copper Target, Taca-Taca, Argentina.VANCOUVER, British Columbia--(BUSINESS WIRE)--Sept. 27, 1999-- (TSE See Tokyo Stock Exchange. TSE 1. See Tokyo Stock Exchange (TSE). 2. See Toronto Stock Exchange (TSE). :CTQ CTQ Centre de Toxicologie du Québec CTQ Critical To Quality CTQ Cysteine Tryptophylquinone CTQ Confined to Quarters .) An option agreement has been signed with Rio Tinto Rio Tinto may refer to:
The terms of the option agreement call for Rio Tinto to spend $2,500,000 U.S. on exploration by July, 2004 to earn a 60% interest. The target of the exploration drilling will be exotic copper mineralization Mineralization The process by which the body uses minerals to build bone structure. Mentioned in: Rickets mineralization, n the bioprecipitation of an inorganic substance. , which is interpreted to have flowed outward from the leached cap of Taca-Taca along topographic lows. A recently completed gravity survey has outlined a prominent channel under the salar (salt lake) beside Taca-Taca. Rio Tinto drilling will be focused on this channel and is expected to start in October. Subsequent to the previously announced Company calculations on missing copper, outlined in the November 19th 1998 news release, independent work by T. Mote at UC Berkeley under the direction of G. Brimhall, has indicated that up to 3.5 Billion pounds of copper is missing. Results have been received from the seven hole reverse circulation drill program carried out by Rio Tinto on the Cerro Cobre target at the Taca-Taca copper-gold porphyry Porphyry, Greek scholar Porphyry (pôr`fĭrē), c.232–c.304, Greek scholar and Neoplatonic philosopher. He studied rhetoric under Cassius Longinus and philosophy under Plotinus. project in Argentina. At least three of the holes have outlined a near surface zone of secondary copper mineralization (mostly chalcocite chalcocite Sulfide mineral, Cu2S, that may be an important ore of copper. It belongs to a group of sulfide minerals formed at relatively low temperatures. Chalcocite alters to native copper and other copper minerals. ), with significant gold values. No substantial, near surface copper mineralization was found in the remaining holes; holes CCR-2 and 5 are vertical, hole CCR-6 is -80 degrees. Hole From To Width(m) Copper(%) Gold(g/t) CCR-002 0 78 78 0.45 - CCR-002 0 66 66 - 0.58 CCR-005 28 58 30 0.57 - CCR-005 0 56 56 - 0.30 CCR-006 28 98 70 0.35 - CCR-006 0 116 116 - 0.16 The interpretation of the above intersections is that the central part of Taca-Taca has a preserved blanket of secondary copper that is near surface and lies well above the deep copper mineralization as outlined by BHP BHP blood hydrostatic pressure; the pressure exerted by the blood cells and plasma in the capillaries. (see press release, July 9/98). Possible dimensions of the area with the shallow copper-gold mineralization as defined by holes CCR-2, 5 and 6 are 750 metres X 300 metres. Rio Tinto has decided that this secondary copper target does not meet their size requirements and will focus exploration on the Salar target. Kenneth R. Shannon, President The Toronto Stock Exchange Toronto Stock Exchange (TSE) Canada's largest stock exchange, trading approximately 1,200 company stocks and 33 options. has neither approved nor disapproved of the information contained herein. |
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