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: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  08-Oct-2021 by George Owsiacki (GO)

Summary Help Help

NMI 104N14 Cu1
Name SUNRISE, SUNSET, CONSOLATION CREEK, SUNRISE (L. 71), SUNSET (L. 70), RAPTOR RIDGE Mining Division Atlin
BCGS Map 104N074
Status Showing NTS Map 104N14W
Latitude 059º 46' 35'' UTM 08 (NAD 83)
Longitude 133º 17' 39'' Northing 6627750
Easting 595778
Commodities Copper, Lead, Zinc Deposit Types K02 : Pb-Zn skarn
Tectonic Belt Intermontane Terrane Cache Creek, Plutonic Rocks
Capsule Geology

The Sunrise occurrence is located at the head of Consolation Creek, north of Surprise Lake, about 32 kilometres northeast of the community of Atlin. The occurrence is covered primarily by two Crown grants; the Sunrise (Lot 71) and Sunset (Lot 70) claims staked in 1899.

The showing is within a pendant of Cache Creek Complex volcanic and sedimentary rocks located between the Middle Jurassic Fourth of July Creek batholith (Three Sisters Plutonic Suite) and the Late Cretaceous Surprise Lake batholith (Surprise Lake Plutonic Suite). More specifically, the occurrence lies within a limestone lens of the Mississippian to Triassic Kedahda Formation composed of cherts, argillites and lesser basic volcanic rocks located in the upper levels of the Cache Creek Complex package. The limestone is highly silicified near the occurrence. The Surprise Lake batholith near the occurrence is composed of granite to quartz monzonite.

There is very little written material on the occurrence itself. It is briefly described as a green skarn containing massive sulphide lenses of pyrite, galena, chalcopyrite, and sphalerite that are up to 1.5 metres wide. Disseminated sulphides occur for an additional 5 metres away from the main skarn zone. This skarn-type mineralization is similar to other occurrences peripheral to the Surprise Lake batholith.

In 1899, some opencuts were dug when the occurrence was initially staked by A. McDonald. In 1907, Crown grants over the showing were issued to L.L. Graham and A. McDonald. The Crown grants reverted to the Crown in 1938.

In 1954, there is note of work on the Sunrise occurrence by Selco Exploration Company Limited that included two or three drillholes totalling 244 metres, but no report was found that is specific to this program; some core remains on-site in unmarked wooden boxes along the western slope near the old workings.

In 1967, the occurrence was examined by at least two groups, and it is indicated that a 38-metre tunnel was driven on the sulphide body on its western end.

In 2016-17, Merlin Geoscience Inc. completed geological mapping, prospecting, and rock geochemical sampling (56) in several areas of the Sunrise property. In 2019, Merlin Geoscience Inc. conducted mobile metal ion (MMI) soil sampling in the Raptor Ridge area, located 2.4 kilometres north of the Sunrise showing. A total of 92 samples were taken along four lines each approximately 1 kilometre long. The Raptor Ridge area is entirely within medium-grained granitic rocks. A sericitic alteration zone of variable intensity trends northeast across the ridge, up to 700 metres wide. Quartz veins less than 1-centimetre-wide exhibit greisen haloes up to 15 centimetres wide, and yield elevated tungsten, molybdenum, silver and bismuth values within the more intense parts of the alteration zone. The vein zones are also marked by a significant increase in iron oxide-lined fractures.

Bibliography
EMPR AR 1907-216; 1954-80
EMPR ASS RPT *37042, *38901
EMPR MAP 52 (10 pages of notes)
EMPR OF 1996-11
EMPR PFD 810832, 810833, 810840
GSC ANN RPT *1899, Vol.XII, Part A, p. 70; Part B, p. 45
GSC MEM 307, p. 72
GSC OF 864
GSC P 74-47
GSC SUM RPT *1899, p. 70
DIAND OF *1990-4
Cordey, F. et al. (1987): Significance of Jurassic Radiolarians from the Cache Creek Terrane, British Columbia, in Geology Vol.15, pp. 1151-1154

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY