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| | July 12, 2005
East Asia Minerals Confirms Extensions To High Grade Copper Oxide Zones, Khok Adar Project, Mongolia, Drilling in Progress
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| | VANCOUVER, B.C. -- East Asia Minerals Corporation, (the "Company") is pleased to announce surface trench results from its Khok Adar copper oxide project, Bayan Ulgii Province, Western Mongolia.
The company is currently undertaking a Phase II trenching and drilling program to assess the high grade copper oxide mineralization intersected in the Phase I drilling and trenching program as previously reported ( KA-04-01 intersected 89.1m of 2.08% Cu and 12.6 g/t Ag including a 10m interval of 9.01% Cu and 41 g/t Ag. Trench C-1 exposed 210m of Cu oxide mineralization averaging 1.43% Cu). The current program is designed to delineate the extent of the high grade mineralization and better understand structural controls and the vertical distribution of copper oxide mineralization within the weathered surface. The high grade copper oxide mineralization exposed on surface to date is generally confined to the lower lying topographical areas. It is not known at this time to what extent the exposed high grade copper zones might reflect erosional windows of potentially more broadly distributed supergene copper mineralization.
Results from two trenches are reported. Trench KA-1 Extension (Fig. 1) was strongly mineralized along its entire length and returned an average grade of 18m @ 1.01% Cu and 19 g/t Ag. It was designed to extend to the west the high grade oxide mineralization previously reported for Trench KA-1 (46m @ 1.32 % Cu and 17g/t Ag). The 18m western extension of KA-1 now allows a total interval for this zone to be reported as 64m @ 1.23% Cu, 18 g/t Ag. Furthermore the westernmost 2m sample interval in the trench extension returned 1.65% Cu and 23 g/t Ag, and this is interpreted to indicate that the high grade oxide zone may extend beyond the western limit of trenching in this area.
Trenching
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Trench From To Intersection Cu Ag
# (m) (m) Total width % gmt
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KA-1* 4 50 46 1.32 17
KA-1 Ext 50 68 18 1.01 19
KA-1 4 58 64 1.23 18
(combined)
* previously reported
Trench KA-8 (Fig.1), located on higher ground approximately 200m east of Trench KA-1. This trench was designed to test the extension under cover of north to north west striking structures that were interpreted as a possible control to localise high grade copper oxide mineralization. However, this 80m long trench intercepted significant widths of anomalous copper, silver lead and zinc mineralization, with intercepts that include 14m @ 0.35% Zn (7m-21m), 27m @ 5 g/t Ag (23m-50m), 9m @ 0.29% Pb (41m-50m) , 8m @ 0.15% Cu & 15 g/t Ag (58m-66m), and 4m @ 0.11% Cu (74m-78m). The apparent zonation from Zn to Ag-Pb, to Cu-Ag dominated mineralization from east to west in Trench KA-8 may be a vector towards significant Cu-Ag oxide mineralization under cover to the west of this trench. Additionally the very high Ag-Cu ratio evident in the copper intercept towards the western end of the trench may be indicative of surface leaching of copper in this zone and copper grade may increase with depth.
Samples from an additional two trenches have been submitted to SGS Laboratory in Ulaanbaatar, Mongolia, and results are pending.
A Phase II drill program for the project is currently underway. The first two holes of a planned twelve hole program have now been completed and samples await shipment to McPhar Labs in Manila, Philippines.
Additionally Geosan LLC is currently and near completing a large ground magnetic survey at Khok Adar. The results of this survey will be used to better define targets in the poorly outcropping areas of the Khok Adar tenement.
The Khok Adar project is interpreted as a structurally controlled, copper-silver mineralized system that has been overprinted by later phases of epithermal/mesothermal alteration and mineralization. The initial Phase I exploration program included 450 meters of trenching and six surface drill holes. Oxide Cu-Ag mineralization occurs to depths up to at least 70 meters. Previous Soviet-era work defined a series of N70ºW trending altered/mineralized zones that exhibit a strong shear fabric with a total strike of approximately 7 km. Initial work conducted by the Company has focused on the western end of the Soviet Zone 1 that extends for approximately 1.7 km where it appears to bifurcate into two mineralized zones and extend a further 1.8 km where they remain open to the southeast. The width of the alteration/mineralization in the part of Zone 1 that has to date been the focus of exploration is between 125 to 200 meters. Surface copper staining is found commonly within the western extension of Zone 1. The eastern extension of Zone 1 has not been fully evaluated.
There are eight additional copper zones, previously identified from the Soviet work within the Khok Adar tenement. In addition, there are thirteen other copper occurrences within the other two adjacent exploration leases. These targets are to be evaluated in the current exploration program.
Fig. 1 Trench Location map -- please see attached press release
Location maps are available on the Company's web site at: www.EastAsiaMinerals.com.
East Asia Minerals Corp. ("EAM") has an option to acquire a 75% interest in the Khok Adar project. EAM must fund US$1,000,000 in exploration expenditures over 3 years from the Effective Date of August 15, 2004.
John Gingerich, P.Geo, a qualified person under NI 43-101, has reviewed the contents of this news release.
For further information on the project please see the technical report dated November 26, 2004, filed on www.sedar.com.
ON BEHALF OF THE BOARD
"Lyndon Bradish"
President & CEO
For further information about the Company, please contact:
Mark Patchett, Telephone: +1 (604) 684-2183 / Facsimile: +1 (604) 688.2180
Email: [email protected] Website: www.EastAsiaMinerals.com
THE TSX VENTURE EXCHANGE HAS NEITHER APPROVED OR DISAPPROVED OF THE CONTENTS HEREIN. |
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