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: 28-Mar-2022 by Karl A. Flower (KAF)
Last Edit:  01-Apr-2022 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name RAINBOW Mining Division Skeena
BCGS Map 103H073
Status Showing NTS Map 103H14W
Latitude 053º 45' 54'' UTM 09 (NAD 83)
Longitude 129º 25' 19'' Northing 5957459
Easting 472186
Commodities Gold Deposit Types
Tectonic Belt Coast Crystalline Terrane Nisling, Plutonic Rocks
Capsule Geology

The Rainbow occurrence is located on a small hill, approximately 250 metres east of Lower Ecstall Lake.

The area lies in the Middle Devonian Ecstall Greenstone Belt (Endicott Arm Assemblage), underlain by intercalated felsic and intermediate volcanics and fine clastic sediments. The Ecstall Belt is a north-northwest–trending, high-grade, metamorphic belt bounded by the elongate Middle Cretaceous Ecstall pluton on the west and the Paleocene Quottoon pluton on the east. The rocks include sericite schist, quartz sericite schist, pyritic quartz sericite schist, chlorite schist, andesite, tuff, greywacke, siltstone and argillite.

Locally, the area is underlain by interlayered felsic and intermediate metavolcanics including two units of pyritic quartz-sericite schist.

Rock sampling of the occurrence area is reported to have yielded gold values of up to 3.9 grams per tonne (Dyakowski, C. [2021-01-27]: Technical Report on the Ecstall Property, Skeena Mining Division, British Columbia).

Work History

The area has been explored in conjunction with the nearby Ecstall (MINFILE 103H 011) occurrence and a regional exploration summary can be found there.

Bibliography
EMPR FIELDWORK 1999, pp. 249-265; 2000, pp. 279-306; 2001, pp. 151-170
EMPR EXPL 1986-C425; 1987-C356
EMPR GEM 1969-369
EMPR INF CIRC 1995-19, p. 25; 1996-1, p. 25
EMPR OF 1999-2; 2002-03
GSC MAP 23-1970; 1385A; 1868A
GSC P 70-41
*Dyakowski, C. (2021-01-27): Technical Report on the Ecstall Property, Skeena Mining Division, British Columbia

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY