O/T DON 28 metres of 9% ZincDonner Metals Ltd.: New Zinc-Copper Discovery Grading 9.24% Zinc, 0.99% Copper Over 27.95 Metres at the McLeod Area, Matagami
Canadian Corporate News via COMTEX
Jun 14, 2007 12:15:06 AM
VANCOUVER, BRITISH COLUMBIA, Jun 14, 2007 (CCNMatthews via COMTEX News Network) --
Mr. Harvey Keats, Chief Executive Officer of Donner Metals Ltd. (TSX VENTURE:DON)(FRANKFURT:D4M), announces the discovery of new, zinc - copper massive sulphide mineralization at the Key Tuffite horizon and in a second horizon 150 metres above the Key Tuffite in the McLeod area of the Matagami project (details listed in the attached table).
MC-05-18W2 intersected 9.24% zinc and 0.99% copper over 27.95 metres, including 26.08% zinc and 2.23% copper over 4.79 metres and 26.08% zinc and 0.29% copper over 3.9 metres. It is a wedge hole that intersected this mineralization at the Key Tuffite at a vertical depth below surface of 820 metres, 100 metres up-dip from historical drill hole MC-05-18 that intersected 22.7% zinc and 0.46% copper over 0.85 metres, also at the Key Tuffite.
MC-07-22 intersected 19.3% zinc and 1.32% copper over 5.04 metres at a vertical depth of 735 metres. This intersection is 100 metres directly up-dip from MC-05-18W2 at the Key Tuffite.
MC-07-24 intersected massive sulphide mineralization associated with an upper tuffite, 150 metres stratigraphically above the Key Tuffite, that returned 6.83% zinc and 1.62% copper over 2.3 metres. This mineralization is underlain by an alteration pipe with sulphide stringers and associated intense chlorite alteration that returned 2.25% copper over 2.0 metres. The massive sulphide mineralization and the alteration pipe suggest the development of a second mineralized horizon in the McLeod area 150 metres above the Key Tuffite. This drill hole was continued to the Key Tuffite where it intersected weak mineralization (pyrite), 300 metres west of MC-07-22.
Drill Hole MC-07-21 and MC-07-23 targeted a down-hole EM anomaly at the Key Tuffite 500 metres below surface and 350 metres up dip and to the west of MC-07-22. Strong chlorite alteration immediately below the Key Tuffite was encountered in MC-07-21 and MC-07-23 intersected very intense and locally mineralized chlorite alteration at, and below, the Key Tuffite.
The new sulphide zone indicated by the results from MC-05-18W2 and MC-07-22 is 200 metres down-dip from a historical mineralized zone at the Key Tuffite level that returned 3.66% zinc and 0.28% copper over 13.3 metres in MC-04-04; 11.25% zinc and 2.04% copper over 14.05 metres in MC-04-07 and 1.14% zinc and 2.38% copper over 13.2 metres in MC-04-08. The new sulphide zone is open towards this mineralization and is also open laterally and down plunge where the next nearest historical drilling is at a minimum distance of 300 metres.
The McLeod area is located approximately 5 kilometres southeast of the Matagami mill and 1 kilometre southeast of intersections previously reported from the Bracemac area. These new results were returned from an initial five hole program (MC-05-18-wedge and MC-07-21 to 25). The program is designed to investigate an extensive chlorite alteration system at, and immediately below, the Key Tuffite that was previously encountered by wide-spaced historical drilling in the McLeod area where the Key Tuffite marker horizon is well developed and dips at 70 degrees to the south west.
Drilling is continuing with 3300 metres drilled to date at the McLeod area.
Matagami Camp Geology
Throughout the Matagami Camp, mineralization occurs in multiple deposits as bedded and pinnacle massive sulphides at the laterally extensive, Key Tuffite stratigraphic level (e.g. Mattagami and Bell Allard deposits) immediately overlying "Alteration Pipes" that represent the conduit through which the mineralizing hydrothermal fluids rose to the sea floor and precipitated the massive sulphides as well as the much more extensive Key Tuffite (silica). Massive sulphides are now known to also occur as vertical, cone-shaped sulphide bodies hosted within the "Alteration Pipe" (e.g. Perseverance). Multiple, stacked mineralized zones and associated alteration pipes above the Key Tuffite are now demonstrated (e.g. Bracemac and Upper Bracemac) where massive sulphides can occur within tuffites developed at higher stratigraphic levels, likely from ongoing hydrothermal systems that were active over long periods of time. "Alteration Pipes" are typified by two styles of alteration: 1) "Pipe style" - characterized by intense chlorite, quartz and sulphide stringers (chalcopyrite, sphalerite, pyrite and pyrrhotite) with local talc, indicating the core of the hydrothermal vent system and, 2) strong chlorite developed proximal to the hydrothermal vents. The vents occur along structural corridors.
About the Matagami Project
The Matagami Project has an area of mutual interest of 4,737 square kilometres and presently includes 2,138 mineral claims covering 499 square kilometres. Taking advantage of Xstrata Zinc's extensive historical database, Donner and Xstrata Zinc Canada (Xstrata Zinc) are using a combination of 3D data integration, innovative advanced technologies, new concepts and diamond drilling to explore for new deposits in this prolific mining camp.
The Matagami Mining Camp is a world-class mining district, with 18 known VMS deposits, including 10 past producers of varying sizes, including the giant Mattagami Lake Deposit (25.64 million tonnes of 8.2% Zn, 0.56% Cu, 20.91 g/t Ag and 0.41 g/t Au) discovered in 1957 and mined from 1963 to 1988. The area is host to historical production of 8.6 billion pounds of Zn and 853 million pounds of Cu and has established infrastructure including the town of Matagami, a railway, a paved road, and a 2,350 t/day mill owned by Xstrata Zinc.
Donner has the option to earn a 50% participating joint venture interest in the Matagami Project by incurring a total of $20 to $23 million of expenditures on exploration and related work on or before May 31, 2011. Upon the expenditure of $20 million by Donner, five separate joint ventures will be formed, covering the property and the area of interest. In each of the five joint venture areas, Xstrata Zinc has the option to earn back a 15% interest in each area by incurring up to $20 million on a feasibility study.
The Company's strategy is to explore for and discover zinc - copper deposits in the Matagami Camp and to leverage existing processing facilities within a known and well-established cost structure for developing VMS deposits. Donner's exploration objective is to investigate multiple stratigraphic horizons with potential for VMS mineralization including the prolific Key Tuffite horizon throughout the Matagami Camp. Donner has discovered new mineralization at the Bracemac and Upper Bracemac levels, recently reported a new discovery in the Key Tuffite immediately below the Bracemac Zones and now reports an additional discovery in the McLeod area at the Key Tuffite.
Supplementary Information
The field work on the Matagami Project is being carried out by project operator Xstrata Zinc Canada who are responsible for the sampling, QAQC and submittal of samples for assay. Assaying of samples reported in this news release was carried out and certified by ALS Chemex-Chimitec, of Val D'Or, Quebec (zinc, copper and silver by atomic absorption, and gold by standard fire assay procedures). Sample preparation was done by ALS Chemex of Val D'Or, Quebec. Robin Adair, VP of Exploration for the Company, is the Qualified Person responsible for the technical information in this news release.
ON BEHALF OF THE BOARD OF DONNER METALS LTD.
Harvey Keats, Chief Executive Officer