MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 103I 041

XML Extract / Production Report / Inventory Report

File Created:	19-Dec-1986	by	Larry Jones (LDJ)
Last Edit:	10-Aug-1989	by	Laura L. Duffett (LLD)

SUMMARY

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		NMI	103I9 Cu1
Name	DIADEM, NICHOLSON CREEK	Mining Division	Omineca
		BCGS Map	103I069
Status	Showing	NTS Map	103I09W
Latitude	054º 40' 04''	UTM	09 (NAD 83)
Longitude	128º 23' 26''	Northing	6057994
		Easting	539306
Commodities	Copper, Silver, Gold	Deposit Types	L01 : Subvolcanic Cu-Ag-Au (As-Sb)
Tectonic Belt	Intermontane	Terrane	Stikine, Plutonic Rocks

Capsule Geology

Triassic volcanics, consisting of rhyolites and andesite flows, are intruded by quartz diorite and granodiorite of the Cretaceous to Tertiary Coast Plutonic Complex. The volcanics are cut by feldspar with associated quartz veins.

Several east trending veins occur within the volcanics over a 200 metre width. The veins carry chalcopyrite, bornite and pyrite. A 60 centimetre sample of one vein assayed trace gold, 35 grams per tonne silver and 8.5 per cent copper (Minister of Mines Annual Report 1928).

Two trial shipments, totalling about one tonne, assayed 0.6 grams per tonne gold, 55 grams per tonne silver, and 5.8 per cent copper (Minister of Mines Annual Report 1928).

Bibliography

EMPR AR 1923-102; 1925-126; 1926-125; 1927-126; *1928-144; 1929-152; *1930-133-135; 1931-70; 1934-C5; 1935-C7; 1938-B39; 1948-76,77; 1951-108; 1952-85; 1953-92; 1954-85; 1955-21

EMPR MAP 69-1; 8

EMPR PF (Rpt by N.G. Freshwater, Maps by J.A. Siefert, 1946 and F. Nash, 1931)

GSC MAP 11-1956; 278A; 1136A; 1385A

GSC MEM *205, pp. 56,57; *329, pp. 86,87

GSC P 36-17, pp. 97,98

EMPR PFD 18013, 18014, 18015, 18016, 18017