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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  26-May-2021 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name WHY, LAW, SKARN, SLO Mining Division New Westminster, Similkameen
BCGS Map 092H056
Status Showing NTS Map 092H10W
Latitude 049º 35' 03'' UTM 10 (NAD 83)
Longitude 120º 55' 07'' Northing 5494479
Easting 650444
Commodities Copper, Silver, Molybdenum Deposit Types K03 : Fe skarn
K01 : Cu skarn
L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

The Why showing outcrops 1 kilometre west-northwest of the confluence of Lawless and Skwum creeks and 12 kilometres west- northwest of Tulameen.

A narrow band of skarn alteration occurs in a sequence of argillite, tuff, quartzite and limestone of the Upper Triassic Nicola Group, just east of the contact with foliated granodiorite of the Late Jurassic to Early Cretaceous Eagle Plutonic Complex. The skarn band is mineralized with magnetite and minor chalcopyrite and bornite.

Similar mineralization is reported to occur southeast of the main Why occurrence, across an east-flowing tributary of Skwum Creek. Here, areas of silicification and quartz-epidote-garnet (?) skarn alteration contain pyrite and magnetite, with minor chalcopyrite. This mineralization occurs just east of a limestone bed striking north-northwest.

In 2014, a sample (272633) of roadside subcrop comprising a limonitic and slaty metasediment with pyrite and chalcopyrite from the Why occurrence area yielded 0.90 per cent copper and 9.8 grams per tonne silver (Assessment Report 35095).

Another zone of mineralization, referred to as the SLO zone, is located along Skwum Creek approximately 750 metres east of the Why occurrence and comprises a potassic-altered feldspar-quartz porphyry hosting weakly developed quartz stockworks with pyrite and minor chalcopyrite and molybdenite mineralization. Also in this area, biotite hornfels–altered meta-sedimentary rocks host disseminated and fracture-controlled pyrite and millimetre-wide crosscutting quartz-pyrite veinlets with trace chalcopyrite and molybdenite. Pervasively silicified and pyritized felsic sills also are reported in the area.

In 2014, rock samples from the Slo zone are reported to have yielded generally from 0.06 to 0.15 per cent copper with up to 0.022 per cent molybdenum (Assessment Report 35095).

Work History

In 1973, El Paso Mining and Milling Co. completed a program of geological mapping and soil sampling on the area as the Why claims.

In 1981, JMT Services Corp. completed five percussion drill holes, totalling 260.7 metres, on the area as the Law claims.

In 1989, Thomas Lisle staked the area as the Skarn claim and the following year completed a program of geological mapping.

During 2014 through 2018, Tech-X Resources Ltd. completed programs of geological mapping, geochemical (rock, silt and soil) sampling, 29.5 line-kilometres of induced polarization surveys and a 548.9 line-kilometre airborne magnetic survey and on the area as the Thinne and LC claims of the Lawless Creek property.

Bibliography
EMPR ASS RPT 4673, 9631, 20053, *35095, 35605, 36255, 36939, 38197
EMPR GEM 1973-150; 1974-122
GSC MAP 46A; 888A; 1386A; 41-1989
GSC MEM 26; 243
GSC P 85-1A, pp. 349-358
CJES Vol. 24, pp. 2521-2536 (1987)

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