MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 082LSW051

File Created:	24-Jul-1985	by	BC Geological Survey (BCGS)
Last Edit:	31-Mar-1993	by	Discovery Consultants (DISC)

SUMMARY

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		NMI
Name	AT, DUN, ESPERON 18, ESPERON, DOBBIN	Mining Division	Vernon
		BCGS Map	082L012
Status	Showing	NTS Map	082L04E
Latitude	050º 07' 35''	UTM	11 (NAD 83)
Longitude	119º 42' 35''	Northing	5556199
		Easting	306325
Commodities	Molybdenum, Copper	Deposit Types	L03 : Alkalic porphyry Cu-Au
Tectonic Belt	Intermontane	Terrane	Plutonic Rocks, Quesnel

Capsule Geology

The AT showing is located 29 kilometres north-northwest of Kelowna, north and west of Dun Waters Creek.

In this area, Middle Jurassic quartz monzonite of the informally named Terrace Creek batholith intrudes argillaceous sediments of the Upper Triassic to Lower Jurassic Nicola Group. The stock is intruded by diorite plugs and dikes which are cut by quartz monzonite and aplite dikes. The intrusive rocks are cut by Tertiary basalt dikes related to volcanic rocks which overlie the older rocks.

Chloritized and sericitized, moderately fractured quartz monzonite porphyry hosts molybdenum and a trace of copper mineralization. Quartz veinlets, usually 1 to 10 centimetres thick, carry disseminated molybdenite, pyrite and traces of chalcopyrite. Pyrite and molybdenite occur on fracture planes. Alteration is associated with the quartz stockwork and the fractures.

About 1 kilometre to the northwest, sericite and epidote-altered quartz monzonite porphyry hosts quartz veinlets carrying a trace of disseminated molybdenite.

In 1966-67, Noranda Exploration Co. Ltd. carried out soil geochemistry and trenching programs. In 1972, Canadian Johns- Manville Co. Ltd. carried out a soil geochemistry survey. In 1979-80, Cominco Ltd. carried out geological mapping, induced polarization and magnetometer surveys.


Bibliography	EMPR AR 1967-222 EMPR ASS RPT 1071, 4133, 7753, 8664 EMPR EXPL 1979-99,100; 1980-131 EMPR FIELDWORK 1987, pp. 55-58; 1988, pp. 355-363 EMPR GEM 1972-79 EMPR MAP 37, 5207G, 7216G EMPR OF 1989-5, 1990-30 EMPR PF (In 082LSW General - Claim Map, 1966) EMPR RGS 1976 GSC MEM 296 GSC OF 637 (Map C), 736, 2167 GSC P 89-1E pp. 51-60 EMPR PFD 842330, 842331