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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  03-Jun-2021 by Garry J. Payie (GJP)

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NMI 094D8 Mo2
Name DORTATELLE, DORTATELLE CREEK Mining Division Omineca
BCGS Map 094D040
Status Showing NTS Map 094D08E
Latitude 056º 23' 49'' UTM 09 (NAD 83)
Longitude 126º 07' 10'' Northing 6253983
Easting 677779
Commodities Molybdenum, Copper, Silver Deposit Types L05 : Porphyry Mo (Low F- type)
Tectonic Belt Intermontane Terrane Quesnel, Stikine
Capsule Geology

The Dortatelle occurrence is located about 9 kilometres southeast of Dortatelle Peak (Property File - Canadian Superior Exploration Limited, Maps from Company Files, c. 1973).

The occurrence is hosted by Early Jurassic intrusive rock of the Hogem Plutonic Suite which intrudes undivided Upper Triassic Takla Group volcanics and is truncated, to the west, by the north trending Dortatelle fault.

Mineralization occurs in quartz veins in gneissic granodiorite. The quartz veins are at least "several inches wide" (Geological Survey of Canada Memoir 251). The veins contain molybdenite, pyrite, pyrrhotite and chalcopyrite. A selected sample assayed 0.14 per cent molybdenite (MoS2) and 1.7 grams per tonne silver (Geological Survey of Canada Memoir 251).

The Dortatelle occurrence was discovered during Geological Survey of Canada mapping program prior to 1948, under the direction of C.S. Lord. Lord published the survey's findings as Memoir 251 in 1948.

Bibliography
EMPR PF (In 094D General - *Canadian Superior Exploration Limited, Maps from Company Files, c. 1973)
EMPR OF 1992-11
EMPR BULL 70
GSC MEM *251, p. 64
GSC MAP 962A
GSC OF 342
GSC P 76-29

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