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File Created: 03-Apr-1986 by Gary R. Foye (GRF)
Last Edit:  26-May-2009 by Karl A. Flower (KAF)

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Name McLEESE, GRANITE MOUNTAIN Mining Division Cariboo
BCGS Map 093B049
Status Showing NTS Map 093B08E
Latitude 052º 27' 21'' UTM 10 (NAD 83)
Longitude 122º 14' 11'' Northing 5812013
Easting 551888
Commodities Copper Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Intermontane Terrane Cache Creek
Capsule Geology

The McLeese claims are located on a tributary of Sheridan Creek, 5.5 kilometres northeast of McLeese Lake. They were originally staked in 1966 and held by various individuals and companies. In 1971, Sheridan Copper Mines Limited performed bulldozer trenching on the property.

The McLeese showing is located near the eastern margin of the Stikinia Terrane in south central British Columbia. The dominant rock types in the region are metabasalt, limestone and argillaceous metasediments of the Mississippian to Triassic Cache Creek Group. These are intruded by the dioritic to quartz dioritic Granite Mountain Pluton and the (?)Cretaceous Sheridan Creek Pluton. The Granite Mountain Pluton has been affected by regional metamorphism (greenschist facies) and deformation along with the enclosing Cache Creek Group.

In the area of the showings chlorite-sericite schist of the Cache Creek group is in contact with fine grained diorite of the Granite Mountain Pluton. In the southern part of the area mineral- ization consists of chalcopyrite, malachite, azurite and minor pyrite in quartz lenses along a few shallowly dipping shears in both Cache Creek Group and intrusive rocks. In the northern part, chalcopyrite, malachite and minor pyrite occur as disseminations along the folia- tion of the diorite and as fracture fillings in intensely chloritized, epidotized and sericitized diorite.

The mineralization was exposed by trenches over a strike of 180 metres and a sample taken from the No.1 trench by Sheridan Copper Mines returned 0.90 percent copper over 0.45 metres (Property File Rimfire Sirola, W.M., 1971).

EMPR EXPL 1998-A1-A15
EMPR OF 1999-7
EMPR PF (See 093B General File - Property Map of the McLeese Lake
Area, 1970; *Meyer, W., (1971): Report on McLeese, Tor, and Bob
Claims, for Sheridan Copper Mines Ltd.; *Meyer, W., (1971):
Progress Report on Geochemical Survey, McLeese Claims for Sheridan
Copper Mines Ltd.; Sampling and Assay Record, Drill Logs, Western
Geological Services, 1971; Meyer, W., (1971): Progress Report on
McLeese Lake Property)
EMPR PF Cypurs Anvil (GSC (1959-01-12): Sketch Plan, Sue Claim Group, McLeese Lake Grub Stake; Reeve, A.F. (1966-11-15): McLeese Grubstake, Sue Claim Group Sketch map plan of prospecting and magnetic reconnaissance traverses)
EMPR PF Rimfire (Sirola, W.M. (1971-04-23): Report on McLeese, Tor and Bob claims, McLeese Lake area, with letters, notes and maps)
GSC MAP 12-1959; 1424A; 1537G