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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  20-Jun-2020 by Karl A. Flower (KAF)

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NMI
Name SOUTHERN CROSS (L.329), LIGUID SUNSHINE, NAHMINT Mining Division Alberni
BCGS Map 092C096
Status Showing NTS Map 092C15W
Latitude 048º 59' 43'' UTM 10 (NAD 83)
Longitude 124º 59' 11'' Northing 5428832
Easting 354701
Commodities Copper, Silver, Zinc Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Southern Cross occurrence is located on the east side of Uchucklesit Inlet, approximately 3 kilometres north west of the mouth of Handy Creek. A small amount of production came from this occurrence in 1905 and 1906.

The area is underlain by rocks of the Upper Triassic Vancouver Group, comprising Karmutsen Formation volcanics and Quatsino Formation sediments, and Lower Jurassic Bonanza Group volcanics.

There are several mineral occurrences in the area; these occur in skarns, in areas of shearing and in areas of silicification.

Locally, at the Southern Cross occurrence, a 12 metre adit exposes a limestone- diabase contact mineralized with chalcopyrite, pyrite and copper. A second adit was driven 30 metres downhill in an attempt to intersect the mineralization at depth. An opencut was developed on a 2.5 metre wide vein occurring at the limestone-volcanic contact. The face of an opencut over the tunnel shows 1.5 metres of solid pyrites, with traces of copper in a hornblende gangue, this was the source of the ore. The mineralization disappears at about 18.3 metres in the tunnel. Some chalcopyrite ore, evidently from a shaft now full of water, was found on the dump.

Alteration consists of chlorite, epidote, silicification and grossularite-diopside-actinolite skarn. A "skarn-like" body in the area, up to 4 metres wide, is mineralized with pyrite, pyrrhotite, chalcopyrite and actinolite at a limestone/intrusive contact. The contact is marked by a northeast trending fault which dips steeply to the east.

In the period 1905 to 1906, 290 tonnes of ore was shipped producing 5,132 grams of silver and 6,104 kilograms of copper. Reported assays from dump samples have yielded values up to 18 per cent copper and 19.2 grams per tonne silver (Assessment Report 15199).

In 1986 through 1989, Chelan Resources completed programs of geochemical sampling, geological mapping and ground geophysical surveys on the area as the Liquid Sunshine project. Fourteen rock samples, collected from the adits, assayed up to 0.6128 per cent copper, 0.7445 per cent zinc and 5.8 grams per tonne silver (sample LSC 70; Assessment Report 15199).

In 2007 through 2013, Nahminto Resources completed a program of prospecting, geological mapping, geochemical sampling, a ground magnetometer survey and airborne geophysical surveys on the area as the TJM claims, apart of the Nahmint property.

Bibliography
EMPR AR 1899-850; 1902-230; 1903-191; 1904-243; 1906-190; 1907-221;
1913-277; *1928-368
EMPR FIELDWORK 1989, pp. 503-510
EMPR OF 1988-24; RGS 24, 1990
EMPR PF (In 092C General File - Aeromagnetic Contour Map, Nitinat
Lake Area, Noranda Mines Ltd., date unknown)
EMPR PF (Sections showing development work on Southern Cross Group,
date and author unknown)
GSC MAP 1386A
GSC MEM 13
GSC OF 463; 821; 1272
GSC P 72-44; 76-1A; 79-30
Carson, D.J.T. (1968): Metallogenic study of Vancouver Island with
emphasis on the relationships of mineral deposits to plutonic
rocks, Ph.D. Thesis, Carleton University
Houle, J. (2009-02-09): Technical Report on The Nahmint Property
Houle, J. (2013-11-30): Technical Report on the Nahmint Property
EMPR PFD 6022, 6023, 700045

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