Colossus Minerals Step out Drilling at Serra Pelada Extends the Central Mineralized Zone onto New Ground Drilling 25 metres at 30.19 g/t Gold, 3.53 g/t Platinum and 4.25 g/t Palladium and also 8.35 metres at 53.13 g/t Gold
Toronto, Ontario, October 21, 2010 – Colossus Minerals Inc. (“Colossus”) (TSX:CSI) is pleased to announce the first results of diamond drilling for the extension of the Central Mineralized Zone (“CMZ”) into the newly acquired land package of the Serra Pelada Gold-Platinum-Palladium Project, the Colossus-COOMIGASP joint venture located in Para State, Brazil.
Three step-out drill-holes have confirmed the continuation of the CMZ onto the newly acquired land package, some 450 metres southwest of the historical Serra Pelada open pit.
- SPD-072 intersected 8.35 metres at 53.13 g/t gold and also 25 metres at 30.19 g/t gold, 3.53 g/t platinum and 4.25 g/t palladium, including 4.58 metres at 82.39 g/t gold, 8.23 g/t platinum and 9.91 g/t palladium
- SPD-059 and SPD-065 together with SPD-072 demonstrate shallowly and steeply-dipping subzones of high-grade gold-platinum-palladium mineralization, open to the northeast and southwest on the new ground
- These subzones are continuous with high grade gold and platinum group metals mineralization delineated by Colossus up-plunge to the northeast
Gold-platinum-palladium mineralization at Serra Pelada overprints metasediments occupying the hinge and limbs of a northwest-facing, southwest-plunging, reclined synclinorium that plunges gently southwest from the historical open pit. The CMZ comprises mainly steeply dipping bodies in the fold hinge zone but extends onto the upper and lower limbs of the fold where the mineralization is associated with siliceous and iron-oxide rich alteration. Characterized mainly by intense hydrothermal carbonaceous and argillic alteration, largely of siltstones, the CMZ is inboard of siliceous alteration partially mantling the synclinorial hinge. To date the CMZ has been drill-delineated over 400 metres southwest of the historical open-pit on the Joint Venture’s Mining License (see Figure 1). This release documents the first results of drilling for the extensions of the CMZ into the surrounding newly acquired land package.
SPD-059, SPD-065 and SPD-072 were drilled on Section 150SW and confirm that the siltstone-cored fold extends into the new ground (see Figure 1). SPD-059 intersected mineralization around the upper limb of the fold. SPD-065 was drilled more steeply from the same pad, also encountered upper limb mineralization and apparently clipped mineralized subzones at greater depths. SPD-072 was then stepped back to the northwest and intersected upper limb mineralization as well as a long mineralized interval at greater depth. The main intersections for these drill-holes are tabulated below:
*Total assayed interval (>1.0 g/t gold equivalent) – excludes intervals of no core recovery; true widths to be established
The uppermost mineralized intercepts in SPD-072, SPD-065 and SPD-059 are interpreted to represent a shallowly-dipping subzone and thus approximate the true thickness of mineralization. This high Au/PGE subzone is open to the northwest and southwest and may be continuous with the high-grade mineralization encountered in SPD-028A and SPD-047 (Colossus News Release, June 24, 2010) up to 100 metres to the northeast and at similar depths.
The deeper intercepts in SPD-072 and SPD-065 are interpreted to represent a steeply dipping mineralized subzone which is open to the northwest and southwest. This high-grade subzone exhibits characteristic carbonaceous alteration and may correlate with ultra high-grade gold-platinum-palladium mineralization re-assayed in historical hole FD-072 (13.71 metres @ 204.5 g/t gold, 58.6 g/t platinum, 69.2 g/t palladium and 1.61 g/t rhodium) more than 50 metres to the northeast.
Further drilling is underway to explore the extensions of the CMZ further to the southwest on the new ground and to the northeast to detail its continuity with previously delineated mineralization.
“It is most pleasing and reassuring to see this unique high-grade orebody continue to the southwest. As a result of this success, we will be adding a second deep penetration drill in November to speed up exploration of the CMZ,” commented Ari Sussman, Colossus’ CEO. “The maturation of our Company since June is nothing short of spectacular to oversee, as there are now more than 200 employees working aggressively on decline development, earth works and building construction at Serra Pelada.”
Diamond drilling was HQ cored. Sampling of core (by Colossus personnel) and sample preparation (by Intertek Limited, Parauapebas) were carried out under strict protocols recommended in the NI 43-101 Technical Report dated January 31, 2010 on Serra Pelada. After photographing and logging, core intervals (drilling advances, averaging one metre in length) were cut and/or split in half, yielding samples of two to three kilogram mass. Where core recoveries were low, intervals were composited to yield approximately one kilogram minimum sample masses. Intertek pulverised one or two kilogram splits (>95% passing 106 microns) from the crushed (>95% passing 1.7 mm), dried samples. Duplicates, blanks and certified gold-PGE reference materials were inserted in the sample train by Colossus personnel prior to Intertek preparation work. 200 gram aliquots were rotary split from each pulp by Intertek and one of these samples was securely shipped directly by Intertek to Genalysis Limited, Perth Laboratory for check assaying.
Intertek inserted additional blanks, duplicates and high grade gold/PGE reference materials in the assay stream and replicate assays were performed routinely and on most medium to high grade materials. Fire assays for gold, platinum and palladium were on 25 gram subsamples utilizing a lead-rich collector material and AA finish by Intertek. The assay lab dispatched assay certificate originals directly to Resource and Exploration Mapping Ltd., an independent Company which manages Colossus’ database.
The Intertek assay results for blanks, duplicates, replicates and also all reference materials were well within generally accepted QA/QC measures. Re-assaying (by Intertek) of screen-sized splits from high grade samples from SPD-065 examined bias potentially introduced by the variable inclusion of siliceous and kaolinitic fractions in assay samples. The assay results included in this compilation are the lower values obtained by this work.
Dr. Vic Wall, the Vice President, Exploration of Colossus, is a qualified person under National Instrument 43-101 and is responsible for this release and has verified the contents disclosed.
CAUTIONARY STATEMENT REGARDING FORWARD‐LOOKING INFORMATION
Except for statements of historical fact relating to Colossus, certain statements in this press release relating but not limited to the Company’s exploration plans, activities and intentions, constitute “forward‐looking information” within the meaning of the Securities Act (Ontario) or "forward‐looking statements" within the meaning of the United States Private Litigation Reform Act of 1995. These forward-looking statements represent management's best judgment based on current facts and assumptions that management considers reasonable. Forward‐looking statements are frequently characterized by words such as “target”, “plan”, “expect”, “project”, “intend”, believe”, “anticipate” and other similar words, or statements that certain events or conditions “appear to”, “may” or “will” occur. Forward‐looking statements are based on the opinions and estimates of management at the date the statements are made, and are subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ materially from those projected in the forward‐looking statements. The factors include but are not limited to risks related to the joint venture operation, actual results of exploration activities, the inherent risks involved in the exploration and development of mineral properties, changes in project parameters as plans continue to be refined, delays in obtaining government approvals, the uncertainties of project cost overruns or unanticipated costs and expenses, uncertainties relating to the availability and costs of financing needed in the future, the uncertainties inherent to conducting business in Brazil and the rest of Latin America, the availability of supplies, unexpected adverse climate conditions, the reliance on only a few key members of management, as well as those factors discussed in the section entitled "Risk Factors" in the Company’s most recent Annual Information Form filed with Canadian provincial securities regulatory authorities and other regulatory filings which are posted on SEDAR at www.sedar.com. Unless required by law, Colossus undertakes no obligation to update forward-looking statements if circumstances or management’s estimates or opinions should change. The reader is cautioned not to place undue reliance on forward‐looking statements.
Colossus is an exploration and development Company focused on mineral resource properties in Brazil. The Company is currently focusing its efforts on the high grade gold-platinum-palladium Serra Pelada project in Para State, Brazil. Between 1980 and 1986 Serra Pelada was host to the largest precious metals rush in Latin American history. Coverage by 60 Minutes of this famous mining rush can be viewed at the following link: http://sixtyminutes.ninemsn.com.au/article.aspx?id=299887.
For further information, please contact:
Ann Candelario, VP Investor Relations Colossus Minerals Inc.
Tel: (416) 643-7655
Web site: www.colossusminerals.com