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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  04-Aug-2020 by Karl A. Flower (KAF)

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NMI 103P12 Ag14
Name DAVID COPPERFIELD (L. 3520), SURPRISE, SURPRISE (L. 4335), SILVER BELL FR. (L. 3521) Mining Division Skeena
BCGS Map 103P063
Status Prospect NTS Map 103P12E
Latitude 055º 40' 22'' UTM 09 (NAD 83)
Longitude 129º 30' 22'' Northing 6169778
Easting 468169
Commodities Silver, Lead, Zinc Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The David Copperfield showing is located on the Kitsault River, 21.5 kilometres north of Alice Arm. A quartz-barite vein in this area was periodically investigated between 1916 and 1954.

The region is underlain by an assemblage of volcanics and sediments comprising the Upper Triassic Stuhini Group and the Lower Jurassic Hazelton Group. These are folded into a doubly plunging north-northwest trending syncline and have been regionally metamorphosed to greenschist facies.

The showing consists of a quartz-barite vein, 1.5 to 4.9 metres wide, hosted in Hazelton Group andesitic crystal-lithic tuffs and breccias situated on the west bank of the Kitsault River. The vein strikes 118 degrees, dips 50 degrees north and extends for 300 metres eastward from the David Copperfield claim (Lot 3520) across the Kitsault River onto the Surprise claim (Lot 4335), where it splits into a number of quartz-barite stringers. The vein is sparsely mineralized with disseminated pyrite, galena and sphalerite. Assays from four grab samples range between 6.9 and 267 grams per tonne silver (Minister of Mines Annual Report 1916, page 79).

In 1916, there was a 3 metre adit about 7.6 metres above the Kitsault River driven on a quartz-barite vein. Opencuts northwest from the tunnel reveals slight mineralization.

During 2010 through 2019, Dolly Silver Corporation explored the area as apart of the Dolly Varden property. A complete property exploration history can be found at the Dolly Varden (MINFILE 103P 188) occurrence.

Bibliography
EMPR AR *1916-K79; 1917-46; *1919-N52,N53; 1920-349; 1924-367; 1954-84
EMPR ASS RPT 15371, 21562
EMPR BULL 63
EMPR FIELDWORK 1985, pp. 219-224,327-330; 1988, pp. 233-240; 1990, pp. 235-243; 2005, pp. 1-4
EMPR GEM 1970-88
EMPR MAP 8
EMPR OF 1986-2; 1994-14
GSC MAP 307A; 315A; 1385A
GSC MEM 175, pp. 60,81
GSC SUM RPT *1921, pp. 18A,19A
GSC OF 864; 2996; 3453
Garrow, T. (2011-09-05): Technical Report - Geology and Mineral Exploration of the Dolly Varden Property
Higgs, A.A. (2015-03-18): 2015 Technical Report for the Dolly Varden Property
Higgs, A.A. (2015-05-01): Amended 2015 Technical Report for the Dolly Varden Property
Higgs, A.A. (2015-09-30): 2015 Technical Report for the Dolly Varden Property
Turner, A.J. (2019-05-08): Technical Report and Mineral Resource Update for the Dolly Varden Property

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