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File Created: 23-Aug-1988 by Laura L. Duffett (LLD)
Last Edit:  10-Jul-2020 by Karl A. Flower (KAF)

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Name JOSH, SHAN, MAY Mining Division Liard
BCGS Map 104B066
Status Showing NTS Map 104B10W
Latitude 056º 39' 05'' UTM 09 (NAD 83)
Longitude 130º 48' 57'' Northing 6280055
Easting 388670
Commodities Molybdenum, Copper, Silver, Barite Deposit Types L05 : Porphyry Mo (Low F- type)
Tectonic Belt Intermontane Terrane Plutonic Rocks, Stikine
Capsule Geology

The Josh occurrence is located in northwest British Columbia, approximately 94 kilometres northwest of Stewart.

The area lies on the east flank of the Coast Plutonic Complex, which consists of quartz monzonite stocks with satellitic bodies of syenite and diorite. The area is underlain by Mesozoic and older rocks consisting of shales, limestones and acid to intermediate volcanics and volcaniclastics which have been intruded by elements of the Coast Intrusions.

Locally, the claims are underlain by a succession of limestone, volcanics and related sediments of probable Paleozoic and Mesozoic age which have undergone numerous periods of deformation and intrusions.

The oldest rocks appear to belong to a thick sequence of andesitic volcanic breccia which also contains minor tuff and argillite beds. A thick unit of light grey, banded, fossiliferous (crinoidal) limestone, of possible Permian age, is intercalated with the andesitic breccias.

These units are intruded by elements of the Coast Intrusions in the forms of a syenodiorite porphyry and later granodiorite. The syenodiorite is characterized by 1.0 to 1.5 centimetre hornblende phenocrysts. The main body strikes northeast across the property and locally, occurs both as sills and dikes within the layered rocks.

The granodiorite occurs as near vertical dikes within the syenodiorite porphyry. It is characterized by a fine-grained matrix with 1 to 3 millimetre biotite grains.

Rock alteration consists mainly of propylitization with silicification and contact metasomatism resulting in the formation of actinolite-epidote skarns within the limestone and calcareous volcanics. Occasional zones of silicification occur within the finer- grained volcanics. Propylitic alteration is widespread and is characterized by quartz-epidote veining and the alteration of mafic minerals to epidote and chlorite.

Mineralization on the property occurs within skarns, late quartz veins and weak quartz stockworks. Mineralization related to skarns is best developed within the limestone and calcareous volcanic rocks (refer to Shan, 104B 023). The mineralization associated with late, often vuggy, quartz veins occurs on the Josh 3 claim (refer to Josh 3, 104B 291). The weak quartz stockwork mineralization is developed throughout the main mass of syenodiorite porphyry located mainly on the Josh claim.

The quartz stockwork is comprised of narrow, 5 millimetre wide quartz stringers, trending north with steep dips. Mineralization consists mainly of pyrite with minor chalcopyrite and molybdenite. Associated rock alteration is predominantly propylitic. Stockwork development is more intense adjacent to the granodiorite dikes. Although, the dikes are often fractured and segmented, they are not cut by the stockwork. Quartz-barite veinlets with associated pyrite occur within the syenodiorite stockwork.

In 1983, a grab sample from the syenodiorite with quartz stockworks hosting pyrite, molybdenite and chlorite assayed 1.29 per cent molybdenum, 0.02 per cent copper, 0.02 per cent barite and 1.0 gram per tonne silver. Another 1.6 metre grab sample taken from a barite carbonate stringer within the syenodiorite assayed 0.04 per cent copper (Assessment Report 11306).

In 2006 and 2007, Hathor Exploration Ltd. completed a 7228.7 line-kilometre airborne geophysical survey on the area as the Snip claims of the Iskut project. In 2008, Max Minerals Ltd. examined the property.

Limited soil and rock sampling by Colorado Resources Ltd. in 2014 and 2015 produced no significant results (Assessment Reports 35184, 35943).

EMPR AR 1963-9; 1964-18
EMPR ASS RPT 570, 4140, *11306, 13321, 16855, 35184, 35943
EMPR EXPL 1983-524,525; 1984-388
EMPR FIELDWORK 2015-1, pp. 41-58
EMPR GEM 1972-518
EMPR PF (Todoruk, S.L., Ikona, C.K., (1987): Geological Report on the Cam 5,6 Mineral Claims, Feb. 1987 in Statement of Material Facts #98/87 for Gigi Resources Ltd., Jul. 23, 1987; *Caulfield, D.A., Ikona, C.K., (1987): Geological Report on the Josh, Josh 2-4 Mineral Claims, May 1987 in Statement of Material Facts #73/88 for Redwood Resources Inc., Nov.24, 1988)
EMR MP CORPFILE (Skyline Explorations Ltd.)
GSC MAP 9-1957; 311A; 1418A
GSC P 89-1E, pp. 145-154
GCNL #10, 1984
PR REL Goldrea Resources Corp., Dec.31, 2002
Anderson, R.G., (1988): A Paleozoic and Mesozoic Stratigraphic and Plutonic Framework for the Iskut Map Area (104B), Northwestern British Columbia, pp. A1-A5 in Geology and Metallogeny of Northwestern British Columbia, Smithers Exploration Group, G.A.C. Cordilleran Section Workshop, Oct. 16-19, 1988
Equity Preservation Corp. Compilation: Stewart-Sulphurets-Iskut, Dec. 1988, (Showing No. B21)
Cavey, G. (2008-11-14): Technical Report on the Iskut Project
EMPR PFD 671581