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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  15-Jan-2018 by Nicole Barlow (NB)

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NMI
Name SID, SID (SOUTH), CHALCO, P.C.M. 21 Mining Division Nicola
BCGS Map 092I016
Status Showing NTS Map 092I02W
Latitude 050º 09' 57'' UTM 10 (NAD 83)
Longitude 120º 56' 37'' Northing 5559093
Easting 646862
Commodities Copper Deposit Types
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

The Sid occurrence is situated on Baldie Creek, north of the Nicola River and 14 kilometres northwest of Merritt.

Upper Triassic Nicola Group rocks exposed on Promontory Hills are intruded by the Lower Jurassic Guichon Creek Batholith to the north and the Coyle stock to the south, and are unconformably overlain by the Cretaceous Spences Bridge and Kingsvale groups to the west and east, respectively. The Nicola Group rocks comprise a large, slightly overturned subisoclinal anticline that plunges gently northeast. Several faults strike northwest. Copper mineralization occurs at the contact of the Nicola Group volcanics and the granitic Coyle stock. The Nicola Group rocks are northeast-trending, dark-green to black tuffaceous and fragmental andesites that are moderately chloritized and epidotized. The Coyle stock is a pink leucocratic granite with less than 5 per cent (by volume) chloritized hornblende, biotite and disseminated magnetite. Feldspar porphyry, diorite and quartz diorite are marginal intrusive phases. Quartz and carbonate veining with associated specularite is characteristic of the Coyle stock and is believed to be related to late-stage Nicola Group volcanism.

The contact of the Nicola Group and the Coyle stock has chilled margins, with fine-grained rhyolite dikes present. Tuffs and fragmental rocks are hornfelsed and silicified to quartzofeldspathic hornfels, gneisses and chlorite or sericite schists. This unit is mineralized with specularite, chalcopyrite and minor amounts of pyrite, bornite and malachite. Specks of tourmaline are also evident.

In 2015, the Sid occurrence was covered by the Promontory Hills property owned by Guy and Christopher Delorme. That year, a 10.7 kilometre magnetometer survey was carried out over two claims covering the PL (MINFILE 092ISE042) and Sid occurrences.

Bibliography
EMPR AR 1958-26; 1959-143; *1960-26-41; 1962-54
EMPR ASS RPT 237, 330, 450, *2128, 3889, 5771, 36054
EMPR BULL 56
EMPR EXPL 1975-E79; 1989-119-134
EMPR FIELDWORK *1977, pp. 31-36
EMPR GEM 1969-273; 1972-144
EMPR MAP *30
GSC MAP 886A
GSC MEM 249
GSC OF 980

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