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File Created: 26-Mar-1992 by David M. Melville (DMM)
Last Edit:  20-May-2021 by Garry J. Payie (GJP)

Summary Help Help

NMI 094D9 Cu2
Name ASITKA 10, SIT Mining Division Omineca
BCGS Map 094D068
Status Showing NTS Map 094D09W
Latitude 056º 36' 07'' UTM 09 (NAD 83)
Longitude 126º 26' 24'' Northing 6276000
Easting 657150
Commodities Copper Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
D03 : Volcanic redbed Cu
Tectonic Belt Intermontane Terrane Stikine, Quesnel
Capsule Geology

The Asitka 10 showing is located within the Asitka 10 claim unit (Assessment Report 5202), on a northwest trending ridge approximately 700 metres northwest of Asitka Peak.

The regional geology is similar to that of the A-4 occurrence (094D 087) which lies approximately 2 kilometres to the northeast.

Locally, the area is underlain by the Upper Triassic Savage Mountain Formation (Takla Group). This formation consists of greenish to red-brown intermediate porphyritic flows, chloritic tuffs and agglomerates, and minor intercalated epiclastic sediments. These stratified rocks are intruded by the Early Jurassic Asitka Peak stock which ranges from hornblende and/or biotite granodiorite to quartz diorite. These rocks are cut by mafic dykes, generally less than 3-metres thick, which are finely feldspar porphyritic (Assessment Report 5202).

In 1974, Nomad Mines Limited observed that chalcopyrite, chalcocite and lesser bornite occurred within quartz veins and as disseminations within the volcanics at the Asitka 10 occurrence (Assessment Report 5202). The quartz veins trend west-northwest to northwest. Malachite staining is associated with mineralization.

In 1991, International Corona (on their Sit Claim block) took seven samples on or near the ridgeline that extends northwest from Asitka Peak. The mineralized samples on the ridgeline occur 400 metres to 800 metres from Asitka Peak. Mineralized sample 64172, about 800 metres northwest of Asitka Peak graded 0.66 per cent copper over 2 metres; this chip sample consisted of "bull white" quartz vein with a trace of malachite (Assessment Report 22018). Mineralized chip samples 64604 and 64605, about 400 metres northwest of Asitka Peak graded 0.44 and 0.19 per cent copper over 0.3 metre and 0.25 metre respectively; both samples consisted of quartz vein with epidote, chalcocite and malachite ("Geochemical Map" (with sample and assay plots), Assessment Report 22018).

Three chip samples, 67174, 67175 and 67176, whose point locations form a rough north-trending line over about 50 metres (if the sample map-plots are accurate), graded respectively: 1.19 per cent copper over 2 metres, 2.81 per cent copper over 1.75 metres and 0.57 per cent copper over 2 metres ("Geochemical Map" (with sample and assay plots), Assessment Report 22018). Sample 64174 consisted of brecciated “bull white” quartz vein with malachite and bornite. Sample 64175 consisted of quartz vein with high grade lenses of malachite/bornite. Sample 64176 is described only as brecciated quartz vein. Southernmost sample 67174 is about 185 metres due east of sample 64172, the sample upon which the MINFILE plot for Asitka 10 is located.

WORK HISTORY

West Point Mines Limited staked the Sil and Jim groups (30 claims) in 1965. The company name was changed in 1966 to Black Giant Mines Ltd. Additional staking was done during 1966 to a total of 185 claims. No work was reported and the claims subsequently lapsed 1968 and 1969. In 1969, the Chalco claims were staked by W. Sevrens, covering part of the property later owned by Nomad Mines. Nomad Mines Ltd. acquired the Asitka 1-24 claims from principals of the company by an agreement of March 1972. The claims surrounded Asitka Peak on three sides, the west, north, and east. Additional staking was done in the Asitka and Bob groups to a total of about 60 claims and fractions. Cash in lieu of assessment work was paid in 1972 and the first exploration by Nomad was carried out during the 1973 field season when a preliminary exploration program consisting of geological mapping, prospecting, line cutting, geochemical soil sampling (479 samples) and a magnetometer survey was carried out. This program resulted in the location of widespread copper mineralization. In 1974, Nomad collected a total of 407 soil samples and analysed for copper and molybdenum (Assessment Report 5202). The copper geochemistry roughly outlines a northwesterly-trending zone of discontinuously mineralized quartz veins. On the Bob group, only a few higher copper values are outlined. There is a general correlation between high molybdenum values in soils and the main northwest trending body of anomalous copper values. Four diamond drill holes totaling 676 metres were completed in 1974; holes ranged from 160 to 185 metres in depth. Information on drilling can be found in the A1 and A4 MINFILE occurrences (094D 147 and 087) summaries.

In 1981, prospecting was conducted in the area northeast of Asitka Peak by John Mirko (Assessment Report 9546). In 1981, a portion of the property was restaked as the Asitka Peak claims and minor prospecting and sampling was completed. In 1989, area northeast of Asitka Peak was restaked as the Asitka 1,3 and 4 by K.V. Campbell. Minor geochemical soil and rock chip sampling and prospecting was conducted (Assessment Report 20006).

The SIT claim group, staked in 1990 for International Corona Corporation, includes the Sit 1 (242823, Sit 2 (242828, Sit 5 (242831), Sit 6 (242832) and Sit 7 (242833) claims. Geological mapping and prospecting were performed in 1991, visiting and documenting previously discovered mineral showing and making new discoveries as well (Assessment Report 22018). Work included 25 mandays in the field, when 100 rock and 24 moss mat samples were collected. A large area between Asitka Lake, on the south, and Johanson Lake on the north, was prospected by Corona.

In July of 2018, John Bot contracted R. Beck Consulting Services to conduct a short sampling program along the gossanous hillside of the western flanks of Asitka Mountain (Assessment Report 37708). Eleven of 12 samples collected during the program were taken along a northwest trending traverse west of Asitka 25 (094D 097) and Asitka 29 (094D 094). A more significant sample was taken between Asitka 10 (094D 148) and Asitka 19 (094D 096).

See A4 (094D 087) for related geological information and for further work history details of this area.

Bibliography
EM OF 2001-18
EMPR ASS RPT 4603, 4753, *5202, *5437, 9546, 20006, *22018, 37708, 38158, 39763
EMPR GEM 1973-410; 1974-304
GSC MAP 962A
GSC MEM 251
GSC OF 342
GSC P 76-29

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