Southwestern Resources Corp.: Check 'Screen Fire Assay' Results From Tunnel XG-15, Confirm Bonanza Gold Grades Boka Gold Project, Yunnan Province, China.Business Editors VANCOUVER, British Columbia--(BUSINESS WIRE)--Jan. 21, 2003 Southwestern Resources Corp. (TSX TSX Toronto Stock Exchange (TSE before April, 2002) TSX Transfer from Stack Pointer to Index TSX True Space Extension :SWG SWG abbr. standard wire gauge ) announced today that check panel sampling conducted in Tunnel XG-15, Boka 1 North Zone, has confirmed the previously announced bonanza gold grades (see News Release dated Dec. 3, 2002). The bonanza gold grades in Tunnel XG-15 are associated with hydraulic breccias, which for the most part are parallel to the foliation foliation Planar arrangement of structural or textural features in any rock type, but particularly that resulting from the alignment of constituent mineral grains of a metamorphic rock along straight or wavy planes. (stratabound) although in places were observed to crosscut the foliation. Native electrum electrum Natural or artificial alloy of gold with at least 20% silver, used to make the first known coins in the Western world. Most natural electrum also contains copper, iron, palladium, bismuth, and perhaps other metals. (white gold) is identified in the matrix to the breccia breccia: see conglomerate. breccia Coarse sedimentary rock consisting of angular or nearly angular fragments larger than 0.08 in. (2 mm). Breccia commonly results from processes such as landslides or geologic faulting, in which rocks are fractured. fragments and scanning electron microscope scan·ning electron microscope n. Abbr. SEM An electron microscope that forms a three-dimensional image on a cathode-ray tube by moving a beam of focused electrons across an object and reading both the electrons scattered by the object and (SEM) studies by Dr. Al Miller of Kishar Research Inc. of Ottawa, Ontario has shown the electrum to be 90% gold. The (SEM) studies also confirm the presence of native gold. These electrum bearing breccias are also observed in hole B02-02 which was collared 430 metres northwest of XG-15. When comparing screen fire assay results with conventional aqua regia aqua regia (äk`wə rē`jēə) [Lat.,=royal water], corrosive, fuming yellow liquid prepared by mixing one volume of concentrated nitric acid with three to four volumes of concentrated hydrochloric acid. results, it appears that the majority of the tunnel results previously released may be, in general, too low. Five panels previously sampled in Tunnel XG-15 were re-sampled and the samples shipped directly to ALS Als (äls), Ger. Alsen, island, 121 sq mi (313 sq km), Sønderjylland co., S Denmark, in the Lille Bælt, separated from the mainland by the narrow Alensund. Chemex in Vancouver. Each of the five composite panel samples were assayed by ALS Chemex by screen fire assay methods. A second set of check panel samples have been collected by Stewart Winter, P.Geo. (Independent Qualified Person), and have been shipped directly to ALS Chemex for screen fire assay. Tunnel XG-15 is orientated o·ri·en·tate v. o·ri·en·tat·ed, o·ri·en·tat·ing, o·ri·en·tates v.tr. To orient: "He . . . roughly perpendicular to the long axis long axis n. A line parallel to an object lengthwise, as in the body the imaginary line that runs vertically through the head down to the space between the feet. of the Boka 1 North mineralized min·er·al·ize v. min·er·al·ized, min·er·al·iz·ing, min·er·al·iz·es v.tr. 1. To convert to a mineral substance; petrify. 2. To transform a metal into a mineral by oxidation. 3. zone. The 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. is for the most part stratabound and in places has been noted to crosscut foliation. Check assays for all other elements, including silver will also be carried out. Results of the check screen fire assays on Tunnel XG-15 are listed below.
----------------------------------------------------------------------
Check Elevation Distance From Interval First Sample Check Sample
Sample (Metres) Tunnel Opening Conventional Screen
No. (Metres) (Metres) Fire Assay Fire Assay
----------------------------------------------------------------------
From To (grams per (grams per
tonne gold) tonne gold)
----------------------------------------------------------------------
LYQ-469 1681.0 74.0 76.5 2.5 36.7 111.0
LYQ-470 1678.0 78.5 80.5 2.0 9.3 149.0
LYQ-471 1678.0 80.5 82.5 2.0 100.2 78.4
LYQ-472 1676.5 84.5 86.5 2.0 45.8 68.4
LYQ-473 1675.4 86.5 89.5 3.0 374.4 605.0
----------------------------------------------------------------------
As a result of the above findings, all Boka samples including drill core samples, will be assayed by screen fire assay methods. Regional exploration sampling will continue to be assayed using conventional assay methods. Detailed logging and sampling of diamond drill hole B02-01 has been completed and assay results are expected within the next two or three weeks. Detailed logging of diamond drill hole B02-02 has identified a new zone of mineralization above the main zone mineralization. The new mineralized zone was identified from 97.8 metres to 128.4 metres and is characterized by abundant brecciation brec·ci·ate tr.v. brec·ci·at·ed, brec·ci·at·ing, brec·ci·ates To form (rock) into breccia. brec and limonite/sulphide mineralization. Both native gold and electrum have been identified in the core from this zone. The main Boka 1 mineralized zone was intersected at approximately 170 metres in hole B02-02 and the hole was terminated (due to core recovery problems) in the main mineralized zone at 270 metres depth. Hole B03-02A has been re-established from the same drill pad set-up and is currently drilling. The second drill rig is currently drilling hole B03-03 to the south from the same collar location as Hole B02-01. A third drill rig is being moved to the Property and is expected to be operational within the next two or three weeks. Sample results using screen fire assaying from two more tunnels are:
Boka 1 North
Tunnel # Elevation Distance From Interval Assay
(Metres) Tunnel Opening (grams/tonne)
(Metres) (Metres) gold
------------------------------------------------------------
From To
------------------------------------------------------------
LD-210 1791 0 2 2 1.67
(Crosscut) 2 4 2 7.6
4 6 2 4.6
6 8 2 22.7
8 10 2 21.8
10 12 2 4.21
12 14 2 0.35
(end of crosscut)
------------------------------------------------------------
Boka 1 South
----------------------------------------------------------
Tunnel # Elevation Distance From Interval Assay
(Metres) Tunnel Opening (grams/tonne)
(Metres) (Metres) gold
----------------------------------------------------------
From To
----------------------------------------------------------
PD 58 1732 0 13 (Footwall to
mineralization)
13 15 2 3.41
15 17 2 9.31
17 19 2 17.8
(end of tunnel)
----------------------------------------------------------
More than 500 tunnel samples are currently in for assay and results will be reported as soon as they are available. Quality Control Southwestern has implemented a quality control program to ensure best practice in lithogeochemical sampling and analysis of tunnel and drill core samples. All samples are shipped directly in security sealed bags to the Langfang Institute of Geochemical and Geophysical Exploration (Certification ISO (1) See ISO speed. (2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI. 9001), a well regarded analytical laboratory in Langfang, Hebei Province Noun 1. Hebei province - a populous province in northeastern China Hebei, Hopeh, Hopei Cathay, China, Communist China, mainland China, People's Republic of China, PRC, Red China - a communist nation that covers a vast territory in eastern Asia; the most , approximately 60 kilometres from Beijing. Drill core samples are prepped to -10 mesh at the Langfang laboratory and 1 kilogram split samples are airfreighted to Vancouver, BC for screen fire assay by ALS Chemex Laboratories. Exploration samples are assayed by conventional methods at the Langfang lab and are digested in an aqua regia acid digestion and gold, silver, copper, nickel, arsenic, antimony antimony (ăn`tĭmō'nē) [Lat. antimoneum], semimetallic chemical element; symbol Sb [Lat. stibium,=a mark]; at. no. 51; at. wt. 121.75; m.p. 630.74°C;; b.p. 1,750°C;; sp. gr. (metallic form) 6. and bismuth bismuth (bĭz`məth) [Ger. Weisse Masse=white mass], metallic chemical element; symbol Bi; at. no. 83; at. wt. 208.9804; m.p. 271.3°C;; b.p. about 1,560°C;; sp. gr. 9.75 at 20°C;; valence +3 or +5. are analyzed by atomic absorption. The Company submits its own standards as a measure of the accuracy of the analysis. Field duplicates and pulp duplicates are routinely analyzed for precision at ALS Chemex located in Vancouver, BC. ALS Chemex is an ISO 9001:2000 registered laboratory and is preparing for ISO 17025 certification. The exploration program is being carried out by Dr. Charlie Cheng, PhD (University of British Columbia Locations Vancouver The Vancouver campus is located at Point Grey, a twenty-minute drive from downtown Vancouver. It is near several beaches and has views of the North Shore mountains. The 7. ) under the direct supervision of Mr. John Paterson John Paterson may refer to:
The Company's website (www.swgold.com) contains plan and longitudinal sections of the Boka 1 zone, including the current location of drill holes, the distribution of tunnels and a number of photographs of the mineralized horizon. Southwestern Resources Corp. is exploring in several countries for precious and base metals. The Company has a number of significant joint ventures. Southwestern also explores for diamonds through its 34.3% owned affiliate, Canabrava Diamond Corporation. Some of the statements in this news release contain forward-looking information, which involves inherent risk and uncertainty affecting the business of the Company. Actual results may differ materially from those currently anticipated in such statements. |
|
||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion