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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  30-May-2008 by Garry J. Payie (GJP)

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NMI 104K8 Cu4
Name VAL 1, SAL Mining Division Atlin
BCGS Map 104K049
Status Showing NTS Map 104K08E, 104K08W
Latitude 058º 27' 07'' UTM 08 (NAD 83)
Longitude 132º 15' 49'' Northing 6482279
Easting 659675
Commodities Copper, Silver, Molybdenum, Gold Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Intermontane Terrane Plutonic Rocks, Stikine
Capsule Geology

The area is underlain by quartz monzonite and quartz feldspar porphyry, which are probably genetically related to the Sloko-Hyder Plutonic Suite Tertiary age. These rocks are cut by monzonite, diorite, and aplite dykes. Northwest trending structures control alteration, quartz veining and mineralization.

The quartz monzonite, consisting mainly of hornblende, biotite and feldspar, sometimes has zones of sericite-clay-chlorite-iron oxide alteration. An area of potassium feldspar-quartz veins within a strongly sheared, altered and leached zone, measuring 600 by 50 metres, striking 125 degrees and dipping 55 degrees southwest, contains bornite, chalcocite, malachite and minor molybdenite. Aplite dykes are often parallel to or occupy the same structure.

A selected sample from a 20 centimetre quartz vein assayed 35 per cent copper, 0.003 per cent molybdenum, 251 grams per tonne silver and 0.55 gram per tonne gold. A 9.1 metre chip sample assayed 1.18 per cent copper, 11.0 grams per tonne silver and 0.96 gram per tonne gold. Four hundred metres to the south, a 6.1 metre chip sample assayed 0.335 per cent copper. (Assessment Report 8962).

In 1980, an exploration program was carried out by Utah Mines Ltd. on the Val 1 and 2 claims to delineate the shear zone containing chalcocite, bornite, molybdenite and precious metal mineralization.

The ground was restaked in 1987, as the Sal property by Tahltan Holdings Ltd. On behalf of Tahltan, Stetson Resource Management Corp. carried out an exploration program. Geological mapping was carried out over the center portion of the property at a scale of 1:5,000 and at larger scales where mineralization was discovered. Rock chip sampling of quartz veins, and all pyritic rocks was carried out. Soil and talus sampling was carried out at 2 meter intervals on lines spaced 25 meters apart covering the shear zone on the Sal 2 claims.

EMPR ASS RPT *8962, 17909
EMPR EXPL 1980-490-491
GSC MAP 6-1960; 1262A
EMPR PF (RPTS by Lefebure, D. (1987))