British Columbia Ministry of Energy, Mines and Natural Gas and Responsible for Housing
News | The Premier Online | Ministries & Organizations | Job Opportunities | Main Index

MINFILE Home page  ARIS Home page  MINFILE Search page  Property File Search
Help Help
File Created: 15-Jul-1988 by Larry Jones (LDJ)
Last Edit:  30-Nov-2020 by Del Ferguson (DF)

Summary Help Help

NMI
Name BACH Mining Division Liard
BCGS Map 104B075
Status Showing NTS Map 104B14E
Latitude 056º 47' 02'' UTM 09 (NAD 83)
Longitude 131º 02' 01'' Northing 6295180
Easting 375760
Commodities Copper, Silver, Gold, Molybdenum Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Bach showing is approximately 1 kilometre southwest of KING (104B 338) on a south-facing ridge side above a tributary of Verrett River, approximately 10 kilometres north of Iskut River.

The Bach claims straddle a contact between a Mesozoic dioritic intrusive related to the Coast Plutonic Complex and Triassic volcanics and sediments of the Stuhini Group. The diorite occupies the southwestern portion of the claims and is well exposed on the steeper slopes. Gossanous patches accentuate the diorite-volcanic contact and the sequence intermediate to mafic volcanics as well as a thick bed of limestone occur to the northeast of the diorite.

The volcanics strike about 130 degrees, sub-parallel to the volcanic-diorite contact. They are comprised mainly of porphyritic basalt flows and agglomerate. They are overlain by a slightly recrystallized banded limestone and coarse conglomerate.

The diorite consists of a light grey, medium-grained rock com- prised mainly of feldspar and hornblende with minor biotite and quartz.

Pyrite is ubiquitous within all rocks, except the limestone, and occurs as fine-grained disseminations. Near the diorite-volcanic contact higher concentrations of pyrite are marked by brown-red gossan zones. Within these gossanous zones the pyrite occurs as disseminations and fracture fillings.

In 1980, a sample assayed 1.03 grams per tonne gold, 8.91 grams per tonne silver, 0.15 per cent copper and 0.01 per cent lead with 0.01 per cent zinc (Geology map, Assessment Report 9192). A rock sample taken in 1988 assayed 9.94 grams per tonne gold and 17.5 grams per tonne silver (Sample 21099, Assessment Report 18129)

In 1987 and 1988 Ticker Tape Resources (Assessment Report 16850 and 18129) funded extensive exploration work in the Bach target area. The Bach Target was initially identified by Du Pont in 1981 and consisted of a series of stream sediment samples which returned strongly anomalous gold values. Follow up soil sampling and prospecting in 1987 and 1988 by Ticker Tape Resources resulted in the identification of a broad area of anomalous gold values in soils upslope from the anomalous stream samples.

In 2009, Garibaldi Resources conducted prospecting and rock sampling on the King property, which included the Bach area. Though no new work was done there, compilation of historic exploration work completed in 1981, 1987 and 1988 was done for Bach Target area (Assessment Report 31374).

The 2011 program by Garibaldi and Acadia Resources Corp. consisted of the collection of 67 composite talus and soil samples from within the area of anomalous gold values. No significant gold or copper values resulted from the analysis; however, several samples did return strongly anomalous molybdenum values (Assessment Report 32926).

Bibliography
EMPR ASS PRT *9192, 16850, *18129, 29739, *31374, 32926
EMPR EXPL *1980-470
EMPR OF 2011-4
EMPR P 2019-01 pp 97-11, 2015-1 pp 41-58, 2015-1 pp 87-101
EMPR PFD 903961
GSC MAP 9-1957; 311A; 1418A
GSC MEM 246
GSC P 89-1E, pp. 145-154
CJES 49 PP 1027-1052
GBC RPT 2013-05
Anderson, R.G., (1988): A Paleozoic and Mesozoic Stratigraphic and Plutonic Framework for the Iskut Map area (104B), Northwestern British Columbia, pp. A1-A5, in Geology and Metallogeny of Northwestern British Columbia, Smithers Exploration Group, G.A.C. Cordilleran Section Workshop, October 16-19, 1988

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY