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File Created: 24-Jul-85 by BC Geological Survey (BCGS)
Last Edit:  29-May-15 by Karl A. Flower(KAF)

Summary Help Help

NMI
Name BROKEN HILL, MORNING, LUKE 1-4, KING, JESSI, HARV, PERL Mining Division New Westminster
BCGS Map 092H044
Status Showing NTS Map 092H06E
Latitude 49º 28' 59" N UTM 10 (NAD 83)
Longitude 121º 14' 20" W Northing 5482648
Easting 627559
Commodities Gold, Silver, Lead Deposit Types I01 : Au-quartz veins
Tectonic Belt Coast Crystalline Terrane Bridge River
Capsule Geology

The Broken Hill showing is located on the east side of the Coquihalla River, approximately 1.3 kilometres above the mouth of Dewdney Creek.

The area is underlain by the Lower to Middle Jurassic Ladner Group, comprised of a sequence of fine- grained, poorly to well- bedded, slaty argillites and siltstones with minor amounts of coarser- grained materials. The Ladner Group sediments stratigraphically overlie older greenstones, which are traceable discontinuously over 15 kilometres along the eastern side of the Hozameen fault. The greenstone-Ladner Group contact is marked by faulting and shearing, but in places the sedimentary rocks rest directly on the volcanic rocks with either an unconformable or disconformable relationship. The greenstone consists of altered basalts and andesites representing either a lower part of the Ladner Group or a basement to the Ladner Group sediments.

Locally, the Ladner Group sediments consist of dark- grey to black, well- indurated metapelite that has undergone low-grade greenschist facies metamorphism. The pelite bedding strikes 330 degrees and dips moderately to the south. Quartz veins occur randomly, rarely exceeding 10 centimetres in length, and appear to be discontinuous along strike. The veins host minor disseminated pyrite and pyrrhotite. The bedrock weathers rust brown and hosts disseminated pyrite.

The Broken Hill showing consists of a single quartz-carbonate vein, which forms a 0.5 metre wide vein between the east contact of a quartz-feldspar dike and the sediments. The fine-grained, light- brown, quartz-feldspar dike strikes 045 degrees and is approximately 1.0 metre wide with weak hydrothermal alteration. The quartz vein hosts minor disseminated pyrite, arsenopyrite, pyrrhotite with sericite, and rare galena.

In 1982, a sample taken across the vein assayed 0.034 gram per tonne gold and 0.34 gram per tonne silver (Assessment Report 10932).

Exploration of the Broken Hill showing on the Harv claim started in approximately 1913, with surface stripping and trenching of quartz veins. In 1974, Geor Mine & Oil completed a program of geological mapping, soil sampling and ground magnetic and electromagnetic surveys on the area as the King claims. In 1976, Rich Hill Mines completed a program of soil sampling and 10.0 line-kilometres of ground electromagnetic surveys. In 1982, Aquarius Resources completed a program of prospecting and soil sampling on the area as the Luke 1-4 claims. In 1990, Anglo Swiss Mining prospected the area. In 1994, Emerald King Mining prospected the area, immediately to the south, as the Harv claim. In 2009 and 2011, the area was prospected as the Perl claim.

Bibliography
EMPR ASS RPT 5448, 5449, 5923, *10932, 20953, 23483, 31331, 32756
EMPR EXPL 1976-E80; 1982-169,170
EMPR FIELDWORK 1982, pp. 62,77
EMPR GEM 1974-E66
EMPR OF MAP 1986-ID,1F
GSC MAP 737A; 1069A; 12-1969; 41-1989
GSC MEM 139, pp. 146,147
GSC P 69-47
GSC SUM RPT 1920 Part A, p. 35

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