Mine detail: Thunder Creek

Previously called 'Dorothy'

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Location

Lat / long:

48.51982, -120.98927

Resource(M)

Primary:	Lead, Silver, Zinc, Copper, Gold
Ore:	Chalcopyrite, Galena, Gold, Pyrite, Sphalerite
Gangue:	Quartz
Orebody form:	VEIN IN SHEAR ZONE

Production

Operation type:	Unknown
Production size:	None
Development status:	Occurrence

Geology

Host rock:	Skagit Gneiss Complex
Host type:	Gneiss
Structure:	Tight Folding Along North-Northwest Trending Axes, Fault
Tectonic:	Active Margin (Leading Edge Of North American Plate)
Alteration processes:	Diorite Is Altered

References

MRDS	M700379
DEP	10088862
Reference	{Deposit:: HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P 232.}{Deposit:: MOEN, W.S., 1976, SILVER OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES BULLETIN 69, V. 1, P. 163.}{Deposit:: TABOR, R.W., HARGERUD, R.A., BOOTH, D.B., AND BROWN, E.B., 199X, PRELIMINARY GEOLOGIC MAP OF TEH MOUNT BAKER 30 X 60 MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN -FILE REPORT 9X-XXX, SCALE 1:100,000 (IN PREPARATION IN 1993).}
Reporter	Lawson, William A. (Evarts, Russell C.), Peterson, Jocelyn A.