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File Created: 24-May-2018 by Garry J. Payie (GJP)
Last Edit:  30-Mar-2020 by Garry J. Payie (GJP)

Summary Help Help

NMI
Name GOLIATH, MONSTER Mining Division Liard
BCGS Map 104G082
Status Prospect NTS Map 104G13E
Latitude 057º 49' 29'' UTM 09 (NAD 83)
Longitude 131º 37' 56'' Northing 6412245
Easting 343675
Commodities Copper, Gold, Silver Deposit Types L03 : Alkalic porphyry Cu-Au
Tectonic Belt Intermontane Terrane Stikine, Plutonic Rocks
Capsule Geology

The Goliath zone is underlain by Upper Triassic Stuhini Group rocks consisting of fine-to-medium-grained intermediate and mafic volcanic flows, interlayered with cherts and cherty shales, dipping shallowly toward the northeast. The Stuhini rock have been intruded by a Late Triassic to Early Jurassaic syenitic pluton of the Copper Mountain Plutonic Suite along with a dike swarm of megacrystic syenite, with dike widths ranging to 10 metres. Several of these dikes are located up to 1.2 kilometres to the southeast of the Goliath zone in the newly defined "Titan Trend" and are mineralized with finely to strongly disseminated pyrite and chalcopyrite grading up to 0.497 gram per tonne gold, 0.5 per cent copper and 360 parts per million molybdenum (Press Release, CGX Gold Corp (J2 Syndicate partner) December 12, 2016).

The pluton has 4 phases. The main phase consists of syenite (and monzonite). A pyroxenite phase typically occurs at the periphery of the pluton with a single, large mass outcropping at the northern end of the syenite intrusion. A hybrid phase occurs between the syenite and pyroxenite phases. This phase is gradational in composition to syenite with greater than 60 per cent mafic minerals. The hybrid phase is fine-grained, equigranular and weathers to a dull, pinkish-grey colour. The syenite dikes are the fourth phase.

Within the intermediate and mafic volcanic flows are massive sulphide lenses forming local gossans, silicified shears and massive chalcopyrite-pyrite quartz veins. Mineralization is spatially associated with intruding syenite dikes or stocks. Lenses range from disseminated minute blebs to 0.5-metre-wide, often in sporadic clusters in shears or within 50 metres of a syenite contact. The zone measures at least 55 metres by 45 metres with confirmed bedrock high-grade polymetallic mineralization in the mafic volcanics and intruding syenite. A day's hand trenching also exposed the bedrock upper contact of a large syenite stock, where composite chip samples have yielded up to 0.56 gram per tonne gold, 9.2 grams per tonne silver and 0.13 per cent copper over one metre, and 0.486 gram per tonne gold, 7.2 grams per tonne silver and 1.09 per cent copper over one metre in the immediate area (Press Release, CGX Gold Corp (J2 Syndicate partner) December 12, 2016). The strongly oxidized and variably silicified syenite contains stringers and disseminations of pyrite and chalcopyrite with malachite and azurite on weathered surfaces and fractures and remains open. As of December 2016, the Goliath zone measured at least 55 meters by 45 meters with confirmed bedrock high grade polymetallic mineralization in the mafic volcanics and intruding syenite and remains underexplored and open in all directions.

Work History

The Monster property was generated and staked by the J2 Syndicate during the summer of 2016, following positive results from a brief 2-day reconnaissance exploration program which resulted in the discovery of gold, silver and copper mineralized outcrop. A total of 42 rock grab samples was taken on the Monster property in 2016. Grabs taken in the newly discovered Goliath Zone from an outcrop lens of massive sulphide in altered volcanics yielded grades up to 7.25 grams per tonne gold, 62.6 grams per tonne silver and 11.85 percent copper (source J2 Syndicate webpage: http://j2syndicate.com/wp-content/uploads/2016/12/Monster-Report-Dec2.2016.pdf. See 2017 Assessment Report 37026 (Appendix C) for the 2016 Monster property field season report by J2 Syndicate.

In 2017, a reconnaissance and follow-up prospecting, mapping and rock sampling program was completed by the J2 Syndicate. Forty-three (43) samples were taken: 5 chip, 8 rock grab, 2 float (15 rock samples in total) and 28 talus fine Assessment Report 37026). Two geologists and one prospector traversed the property taking samples and photographs and making geological observations. Sampling revealed a number of areas anomalous in gold, silver and copper as well as a regional high for zinc. These elements of interest were found proximal to and within the Rugged Mountain Intrusive Complex. The first 4 chip samples (W385701 to W385704) were taken in proximity to the 2016 grab samples which were collected over a five metre section at the Goliath prospect, within the Titan Trend. Rock sample W385659 was also taken in the same area.

See Shake (104G 155) and Rugged Mountain (104G 150) for related details.

Bibliography
EMPR ASS RPT *37026
EMPR FIELDWORK 1991, pp. 179-195; 1990, pp. 149-159
EMPR OF 1992-2
Neill, I. (1992): Geology, Petrography and Chemistry of the Rugged Mountain Alkaline Pluton, Northwestern British Columbia (104G/13) unpub. B.Sc. Thesis, UBC, 75 p.
GSC P 71-44
GSC MAP 9-1957, 1418A
PR REL CGX Gold Corp (J2 Syndicate partner), Dec. *12, 2016

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