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File Created: 23-Dec-1991 by Chris J. Rees (CRE)
Last Edit:  25-Nov-2021 by Garry J. Payie (GJP)

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NMI
Name EAST 1, EAST NO.1 GOSSAN, LANCERS MOUNTAIN, HOODOO, HANNAH 1-2, KLN, KLN 2-3, BHA, FRANKLIN GLACIER Mining Division Vancouver
BCGS Map 092N033
Status Prospect NTS Map 092N05E
Latitude 051º 19' 55'' UTM 10 (NAD 83)
Longitude 125º 30' 02'' Northing 5689708
Easting 325804
Commodities Gold, Silver, Copper, Zinc, Lead Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks
Capsule Geology

The East 1 (gossan) occurrence (Lancers Mountain) is located between Hoodoo Creek and Confederation Glacier. Mineralization on the is characterized by silver, gold, lead, zinc and copper mineralization associated with a variety of felsic to intermediate intrusions of the Jurassic to Tertiary Coast Plutonic Complex.

The area is underlain by gneisses and a younger, probably Tertiary intrusive-extrusive complex, all belonging to the Coast Plutonic Complex (Geological Survey of Canada Open File 1163). The oldest unit consists of foliated quartz diorite and hornblende-biotite gneiss. These rocks are intruded by a monzonite(?) to quartz monzonite porphyry, mainly in the west and northwest, dikes of which intrude the quartz diorite to the east.

Apparently related to the monzonitic porphyry is a heterolithic intrusive breccia; it is emplaced along a northeast-trending fault zone. The quartz monzonite, the breccia and the dykes are probably the subvolcanic equivalents of locally occurring agglomerate, tuff and volcanic flows. Numerous other dykes present are generally porphyritic and pyritic, and include fine-grained monzonitic dykes, felsite dykes, and bleached quartz-eye rhyodacite dykes. They typically strike northwest, less commonly north. Weak epidote and chlorite (propylitic) alteration is present, especially at dyke margins.

The youngest event, and the most economically significant, appears to be partly fracture-controlled quartz-pyrite, quartz-carbonate (calcite and/or ankerite), and pyrite veining, including stockworks. This is generally associated with silicification and pyritic and argillic hydrothermal alteration. The veins are typically 5 centimetres wide, and trend north to northwest, with steep to vertical dips. Some are larger (40 to 50 centimetres wide), and vuggy.

Oxidation has produced at least four major gossanous zones containing limonite and pyrolusite, hosted in various rock types but concentrated at lithological contacts; an average size would be 50 by 50 metres. Within the gossanous zones are areas of mineralized quartz-pyrite and pyrite veins and stockworks, locally containing minor amounts of disseminated chalcopyrite and, more rarely, sphalerite, galena and malachite.

The East 1 gossan is exposed in bluffs on the east side of “Demo Creek”, approximately one hundred meters above the creek. The host rock is a barren foliated quartz diorite cut by 0.5 to 5 centimetre (rarely to 40 to 50 centimetres) quartz-pyrite and pyrite veins. Veins density does not exceed 30/60 centimetres and the veins commonly trend north to northwest, with steep to vertical dips. Oxide material from the veins has washed over barren zones producing a more pronounced looking gossan. Minor disseminations, of chalcopyrite, rare sub to euhedral galena and the occasional cluster of coarse black to dark brown sphalerite were also observed to occur in the veins. Green; fine-grained andesite dikes and one felsitized and -chloritized hornblende bearing felsitic dike were observed in the East 1 gossan, commonly carrying up to 1 per cent pyrite. This dike was crosscut by pyrite and quartz-pyrite-sphalerite veins. The gossan is exposed over an area 30 meters by 90 meters. Grab sample G-80-13 graded 0.09 per cent copper, greater than 0.4 per cent zinc, 20 grams per tonne silver and 0.6 gram per tonne gold (Assessment Report 9508).

Despite some very high, though sporadic geochemical results, most exploration efforts in the area failed to define significant widths of economic mineralization, although the potential at depth was not discounted and has not been tested to date (Nov.24, 2021).

WORK HISTORY

In 1980, Energex Minerals Ltd. collected twenty-one silt samples and 18 soil samples along the north claim boundary in an area of heavy vegetation cover. About 50 rock samples were also taken, mostly in the East 2 gossan area, with about 7 taken at the East 1 gossan and about 10 taken in various areas to the west and southwest of the East 1 gossan.

In 1981, Energex rock sampling was aimed at defining the potential of the previously discovered East 2 gossan, as well as other mineralized altered zones discovered in 1980 and in 1981. Eighty-five rock samples, twelve soil samples, two stream sediment (silt) samples and three heavy mineral stream samples were obtained in the sampling program. Fifty-three of the rock samples were controlled chip samples across measured widths of outcrop. The remaining rock samples were obtained by procuring one to two kilograms of rock chips over a selected widths, usually one meter.

The 1988 exploration program by United Pacific Gold Mines on the Hannah Claims consisted of diamond drilling, trenching, mapping, geological and geochemical sampling and geophysical surveys (Assessment Report 18208). The dominant effort was expended in the Saffron Creek area (formerly held as the Big Frank claims) with lesser work done in the Hoodoo Creek and Confederation Glacier areas to the northwest at or near the Lancer Mountain prospect area (092N 051)). Diamond drilling and trenching tested the “Discovery Zone” at the Saffron Creek (Hannah prospect) area (092N 028). A total of 273 samples consisting of 61 soils, 123 rocks and 89 drill core samples were collected on various areas during the field season.

The KLN 1-4 property was staked in 1996 by J.R. Deighton and F. Onucki over the mineralized area in the vicinity of the Lancers Mountain occurrence (092N 051) reported in early programs. In 1996, 4 samples were collected on behalf of owner Frank Onucki. The only significant assay (of 4) was sample 308048 which assayed nil gold and 27 grams per tonne silver, 0.32 per cent zinc, 0.05 per cent lead and 0.1 per cent copper (Assessment Report 25067).

In 2002, operator Saxony Explorations Ltd explored three non-contiguous claim blocks totaling 207 units called Hoodoo 1 and 2; Lancer 2; and Saffron 2, 4 and 5 mineral claims, from which they collected a total of 31 rock samples. In the Lancer Mountain area (092N 051), trenching and rock chip sampling was performed to evaluate previously trenched occurrence U88HMTR34 reported in 1988 to contain 32,513 grams per tonne silver and 56.57 grams per tonne gold in a grab sample (Assessment Report 27198). This MINFILE occurrence is now referred to as Lancers Ridge (new in Nov. 2021).

In 2007, United Exploration Management Inc. conducted an evaluation of satellite imagery (“iron oxides”) and an exploration program consisting of prospecting and sampling on the LR Property. New areas of porphyry type mineralization and a new, previously unknown, silicified polymetallic vein system (LR Vein) were located. In 2009, UEMI completed preparatory surveys and geological and GIS work on the LR Claims.

In 2021, Goldplay Mining Inc. conducted prospecting and rock and soil geochemical in the area as the Big Frank Property.

Bibliography
EMPR ASS RPT *9508, 9710, *18202, 25067, *27198, 31228, 40016
EMPR EXPL 1980-278; 1981-97; 2002-29-40
GSC OF 1163
PR REL Saxony Explorations Ltd., Dec.18, 2002

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