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File Created: 06-Apr-2004 by Robert H. Pinsent (RHP)
Last Edit:  19-Jul-2020 by Karl A. Flower (KAF)

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NMI
Name VMS, LAHTE, LGY Mining Division Skeena
BCGS Map 103P064
Status Prospect NTS Map 103P11W
Latitude 055º 37' 27'' UTM 09 (NAD 83)
Longitude 129º 17' 39'' Northing 6164291
Easting 481476
Commodities Copper, Lead, Zinc, Silver, Gold Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
G06 : Noranda/Kuroko massive sulphide Cu-Pb-Zn
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The main VMS showing is at approximately 1100 metres elevation. It is close to a major triple junction confluence on Lahte Creek, approximately 4.0 kilometres downstream to the northeast of the Left Over (103P 047) occurrence.

The VMS showings are in folded and deformed volcanic and sedimentary rocks of the Jurassic Hazelton Group. The Lahte Creek area is underlain by a thick sequence of Lower Jurassic Unuk River Formation and Middle Jurassic Betty Creek Formation volcanic and volcaniclastic strata that is unconformably overlain by fine grained argillaceous sediments of the Middle Jurassic Salmon River Formation. The older volcanic rocks are predominantly green, andesitic pyroclastic rocks. The younger unit consists of maroon and green volcanic conglomerates and breccias, along with minor rhyolite and sandstone. The latter is cut by major north-northwest trending shear zones that control alteration and mineralization.

There are two principal gossan zones and two areas of float mineralization. The "Main Gossan" is on the north side of the creek. It is a 100 metre thick zone of propylitic and advanced argillic alteration on a sheared contact between maroon andesite and argillite. It has been traced for approximately 1 kilometre. Both rock types are intensely carbonatized, silicified and pyritized, and they are locally bleached and sericitic and cut by quartz-carbonate veins and veinlets. Although the rocks commonly contain 1 to 5 per cent pyrite, pyrrhotite and traces of galena, they are generally low in grade; however, they contain geochemically anomalous amounts of gold, silver, arsenic and barium. One sample assayed 10.4 grams per tonne silver, 784 parts per million barium over 20 metres of silicified and altered, gossanous argillite.

The "Western Gossan" is similar. It convers an intensely silicified, pyritic shear zone in dacitic rocks south of the creek, 800 metres southwest of the "Main Gossan". The rocks contain 5 to 6 per cent fine-grained pyrite, as well as sphalerite and galena, and traces of chalcopyrite. A chip sample collected over 3.0 metres assayed 13.2 grams per tonne silver, 4.51 per cent zinc, 1.39 per cent lead and 0.0665 per cent cadmium.

The "Boulder zone" covers an area 70 metres long and 50 metres wide on the north side of Lahte Creek that contains numerous angular boulders of mineralized volcanic tuff. The rocks contain disseminated, semimassive to massive, banded galena, sphalerite, chalcopyrite and malachite. The highest grade grab sample contained 5 grams per tonne gold, 99.7 grams per tonne silver and over 9.99 per cent copper. The boulders are thought to be derived from the north to northwest.

The "Float zone" is below the tip of a glacier on the north side of Lahte Creek and consists of a linear string of massive sulphide boulders in moraine. The boulder may be derived from a nearly inaccessible gossan noted on the south side of the icefield. The "Float zone" was not visited in 2000.

In 1981, Hudson Bay Exploration Limited prospected the Lahte Creek drainage and located boulders of rhyolitic massive sulphide on the south side of one of the branches of the river. In 1989, Dolly Varden Minerals Inc. sampled and prospected the drainage and also noted several gossans on south side of the creek. At the time, they were difficult to get at and they were not sampled. However, the company reported finding gold in quartz float. In 1995, Cyprus Canada and Rubicon Management Limited staked and prospected that area, based on the presence of anomalous regional stream sediment samples. They report finding a trace of gold in a sample taken from a mineralized shear zone. In 1997, Rubicon Minerals Corporation returned to explore the gossans on the south side of the creek. It also explored other parts of the drainage and reported finding numerous boulders of massive sulphide at the toe of a glacier that may be derived from a gossan exposed in a cliff face. Most recently, in 2000, F. Yacoub explored the VMS area while working on the Prospector Assistance Program. He prospected the gossans in the main drainage area and sampled the showings. Based on his prospecting and geochemical work, Yacoub considers that the area has potential for both epithermal gold and volcanogenic massive sulphide deposits. In 2002, geological prospecting and rock geochemical surveys were carried out on behalf of Canadian Empire Exploration Corporation. In 2005, Kitsault Resources Ltd. completed a reconnaissance stream sediment survey on the area as the Kitsault Gold property. In 2007,Golden Dawn Minerals Ltd. completed prospecting, rock sampling, soil sampling and a magnetometer survey.

Bibliography
EMPR ASS RPT 9823, 20086, 24990, 25442, 26563, 27153, 29558
EMPR BULL 63; 85
EMPR OF 1986-2; 1994-14; 1999-2
EMPR PF (*Yacoub, F. (2000): Prospector Assistance Program, Final Report 2000-33)
EMPR MAP 8
EMPR FIELDWORK 1985, pp. 219-224; 1988, pp. 233-240; 1990, pp. 235-243; 2005, pp. 1-4
GSC MAP 307A; 315A; 1385A
GSC OF 864
Lahti, H. (2006-12-20): NI 43-101 Technical Report on the Kitsault Gold Property
EMPR PFD 820121, 521134, 521135

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