Mine detail: Elephant Head Group

Previously called 'QuantrellEureka MinesTremaine-Daniels Group'

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Location

Lat / long:

31.71013, -110.92457

Resource(M)

Primary:	Lead, Silver
Secondary:	Copper, Zinc, Gold
Tertiary:	Molybdenum
Ore:	Chalcopyrite, Galena, Malachite, Molybdenite, Sphalerite
Gangue:	Iron, Sericite
Orebody form:	TABULAR, IRREGULAR
Discovery year:	1910

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Quantrell Stock Of Elephant Head Quartz Monzonite
Host type:	Quartz Monzonite
Associated rock:	Gardner Canyon And Box Canyon Dike Swarms And Pluton
Associated type:	Rhyolite
Structure:	Ne-Trending Quartz Veins And Dikes In Madera-Agua Caliente Canyons, Dikes Range In Composition From Rhyolite To Diorite, Ne-Trending Chino Fault In Shear Zone At Head Of Chino Canyon; Fault Strikes N75e, Dips 835 And Offsets Rhyolite Dike
Tectonic:	Salero Fault Block
Alteration processes:	Sericitized; Granite Stained By Iron And Copper Carbonates

References

MRDS	M030413
DEP	10037107
Reference	{Deposit:: KEITH, 1975, ABM BULL 191.}{Deposit:: SCHRADER, 1915, USGS BULL 582.}{Deposit:: DREWES, 1971, USGS MAP I-614.}{Deposit:: ABGMT FILE DATA, STANTON B. KEITH.}{Deposit:: ABGMT-USBM FILE DATA.}{Deposit:: USBM FILES, ELEPHANT HEAD GROUP.}{Deposit:: ADMR FILE DATA, ELEPHANT HEAD GROUP.}{Deposit:: TENNEY, 1927-29, HISTORY OF MINING IN AZ, ABM, P. 319.}
Reporter	Peterson, Jocelyn A.