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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 Ag2
Name SYNDICATE, SECOND THOUGHT, CASEY Mining Division Skeena
BCGS Map 103P073
Status Prospect NTS Map 103P12E
Latitude 055º 44' 02'' UTM 09 (NAD 83)
Longitude 129º 32' 10'' Northing 6176593
Easting 466335
Commodities Silver, Gold Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine
Capsule Geology

The Syndicate occurrence is located on the east bank of the Kitsault River, 28.5 kilometres north of the town of Alice Arm. Several quartz veins were investigated for silver, by trenching and tunnelling, between 1918 and 1925.

The Syndicate showing is comprised of several quartz breccia veins developed in Middle-Upper Jurassic Hazelton Group argillite just west of an outcrop of underlying Lower Jurassic Hazelton Group andesitic pyroclastic rocks. These rocks generally strike north and dip moderately west.

A quartz breccia vein striking 030 degrees and dipping between 62 to 65 degrees west is exposed in two outcrops 30 metres apart. The vein, 1.2 to 1.8 metres wide, parallels the bedding of the argillite. An adit under the northern exposure intersected 1.2 metres of banded quartz and argillite. Surface outcrops contain numerous argillite fragments in quartz. Mineralization consists of pyrite, argentite, pyrargyrite with some native silver and trace native gold. A 1.8 metre chip sample across the southern exposure assayed 326 grams per tonne silver (Minister of Mines Annual Report 1918, page 64).

A second vein, striking 018 degrees and dipping 35 to 38 degrees southwest, lies about 150 metres to the east. The vein, 0.6 metre wide, occurs along the contact between argillite and andesite, with the andesite forming the footwall. It is reported to contain silver sulphides in a gangue of quartz and brecciated argillite fragments.

In 1918, a crosscut adit was driven to explore two veins. Work was continued in 1919-21; in 1924 a drift was driven a metre on a vein exposed in the crosscut. Since then little work has been done. An adit driven 21 metres eastward under the unmineralized northern exposure crossed two veins below the surface. The wider of the two veins, 4.5 metres from the portal, is 0.3 metre wide and has been drifted on for 6 metres. The second vein, 15 metres from the portal, is several centimetres wide. Both veins contain numerous argillaceous inclusions; no sulphides were noted (ca. 1951).

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 *1918-63,64; 1921-51,52; 1922-59; 1924-55; 1925-76; 1930-99; *1951-A90,A91
EMPR BULL 63
EMPR FIELDWORK 1985, pp. 219-224; 1988, pp. 233-240; 1990, pp. 235-243; 2005, pp. 1-4
EMPR MAP 8
EMPR OF 1986-2; 1994-14
GSC MAP 307A; 315A; 1385A
GSC MEM 175, p. 77
GSC SUM RPT 1921, p. 21A
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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