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File Created: 16-Jan-1992 by Keith J. Mountjoy (KJM)
Last Edit:  29-Jul-2021 by George Owsiacki (GO)

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NMI
Name FOG 3, FOG, MESS 1-4, FOG-MESS, FOGMESS, ATTY-ATG Mining Division Omineca
BCGS Map 094E007
Status Showing NTS Map 094E02E
Latitude 057º 04' 51'' UTM 09 (NAD 83)
Longitude 126º 39' 19'' Northing 6328825
Easting 642112
Commodities Lead, Zinc, Silver, Copper Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Fog 3 occurrence is located in the southern end of the Toodoggone Gold Camp, between Attycelley and Kemess creeks approximately 8.3 kilometres east of Duncan Lake, about 250 kilometres north of the community of Smithers.

The Toodoggone Gold Camp lies within the eastern margin of the Intermontane Belt and is underlain by a northwest-trending belt of Paleozoic to Paleogene sediments, volcanics and intrusions. Regionally, the area is situated within a Mesozoic volcanic arc assemblage bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins. Devonian to Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region and are commonly in thrust contact with Upper Triassic Stuhini Group marine sedimentary and volcanic rocks, andesite flows and pyroclastic rocks. These units have been intruded by the granodiorite to quartz monzonite of the Early Jurassic Black Lake Suite and are in turn unconformably overlain by or faulted against dacitic volcanics and volcaniclastics of the Lower Jurassic Toodoggone Formation (Hazelton Group).

The dominant structures in the area are steeply dipping faults that define a prominent regional northwest structural fabric trending 140 to 170 degrees. High angle, northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata. A major structural zone associated with the Saunders Creek regional fault cuts diagonally through the area, striking northwest.

The geology of the area is separated into four, northwest trending, fault-bound panels. The occurrence is underlain by the west-central panel, an up-faulted panel of regionally propylitic altered Toodoggone volcanics in the south portion and Stuhini volcanics in the northern portion. A major north-northwest striking fault separates the hosting panel from structurally higher, zeolitized Toodoggone volcanics to the east. Stuhini Group volcanics are characterized by augite and plagioclase porphyry, basalt and andesite, flows and breccias. Several members of the Toodoggone Formation are present. The Adoogacho Member, the lowest stratigraphic division, consists of reddish and mauve, variably welded ash flows and lapilli-ash tuffs with subordinate block-lapilli tuff, epiclastics and rare andesitic lava flows interbedded with ash-flow tuffs (Bulletin 86). These rocks are propylitically altered with argillic overprinting. The Moyez Member consists of grey to maroon conglomerates containing 20 to 30 per cent by volume granite clasts averaging 4 centimetres in diameter.

Locally, a limonitic gossanous zone in altered volcanic rocks hosts silver and minor base metal values. In 1987, a rock sample (R6719) taken from the western end of the gossanous zone assayed 232.5 grams per tonne silver, 0.4150 per cent lead, 0.0879 per cent zinc and 0.0183 per cent copper (Assessment Report 17460).

The area has been explored in conjunction with the nearby Mess occurrence (094E 070) located 450 metres south, since the early 1980s.

In 1980 and 1981, Serem Ltd. completed program of geological mapping and rock, soil and silt sampling on the area as the Mess 1-4 claims. In 1986, Western Premium Resource Corp. completed a program of geochemical (heavy mineral, rock, silt and soil) sampling and an airborne geophysical survey on the area. In 1987, Skylark Resources Ltd. staked the Frog claim to cover a strong regional structure thought to have acted as an important ore control for deposition of epithermal mineralization within the Toodoggone Gold Camp. A program of geological mapping and rock and silt sampling was performed later that year. In 1989, Inco Gold Management Ltd. performed a program of prospecting, hand trenching and seven diamond-drill holes totalling 365.7 metres on the area on behalf of Western Premium Resource Corp.

During 2003 through 2006, Stealth Minerals Ltd. completed programs of prospecting, geochemical (rock, silt and soil) sampling and geological mapping in the area as the Fog-Mess property.

During 2014 through 2017, Serengeti Resources Inc. completed programs of prospecting and rock, silt and soil sampling on the area immediately east as the UDS property. In March of 2018, Serengeti Resources Inc. signed an option agreement to acquire a 100% interest in the Atty and ATG properties from Finlay Minerals Ltd. and Electrum Resource Corp., respectively. In 2018, Serengeti Resources Inc. conducted a program of rock sampling, core re-logging and sampling, geological mapping and a 20.0 line kilometre ground induced polarization survey on the area as the ATTY-ATG property. The property covers eight occurrences: Attycelley (094E 022), Awesome (094E 081), Fog 1 (094E 115), Fog 2 (094E 116), Fog 3 (094E 117), Kem 6 (094E 119), New Mess 1 (094E 120), and Wrich 1 (094E 122). During the months of June, July and August 2019, Serengeti conducted a broad exploration program on the ATTY property in order to follow up on drill core re-logging and sampling, mapping and geophysics completed in 2018. The 2019 program included 30.8 line kilometres of ground-based IP surveys in two phases and a diamond drilling program of 2318 metres in six drillholes.

Bibliography
EMPR ASS RPT 8999, 10235, 15184, *17460, *27429, 27636, 28649, 34942, 36774, 39173
EMPR OF 2001-01
EMPR GEM 1971-63-71; 1973-456-463
EMPR EXPL 1975-E163-E167; 1976-E175-E177; 1977-E216-E217; 1978-E244-E246; 1979-265-267; 1980-421-436; 1982-330-345; 1983-475-488; 1984-348-357; 1985-C349-C362; 1986-C388-C414; 1987-C328-C346; 1988-C185-C194; 2003-19; 2004-43,44; 2005-45
EMPR FIELDWORK 1980, pp. 124-129; 1983, pp. 122-129, 135-141; 1982, pp. 125-127; 1983, pp. 137-138, 142-148; 1984, pp. 139-145, 291-293; 1985, pp. 167-169, 299; 1987, pp. 111, 114-115
EMPR BULL 86
EMPR PF (Photogeologic Interpretation Map of the Northern Omineca area, Oct. 1964, Canadian Superior Exploration Limited-in 94E General File; Prospectus, (June 14, 1976), Bishop Mines Ltd.; Prospectus, (April 29, 1977), Bishop Mines Ltd.)
EMPR GEOLOGY 1977-1981, pp. 156-161
GSC BULL 270
GSC OF 306; 483
GSC P 80-1A, pp. 27-32
W MINER April, 1982
N MINER Oct.13, 1986; Dec.22, 2003
N MINER MAG March 1988, p. 1
GCNL #23(Feb.1), 1985; #165(Aug.27), 1986
IPDM Nov/Dec 1983
ECON GEOL Vol.86, pp. 529-554, 1991
MIN REV September/October, 1982; July/August, 1986
WIN Vol.1, #7, June 1987
PR REL Stealth Minerals Ltd. Aug.28, Nov.6,24,27,28, 2003, Jul.6,12,16, Oct.28, Nov.15, Dec.*8, 2004, Sept.29, Oct.3,11,17, 2005

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