Mine detail: Shannon Mine

Previously called 'Shannon Mtn. Mine'

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Location

Lat / long:

33.11954, -109.36065

Resource(B)

Primary:	Copper
Secondary:	Silver, Gold
Tertiary:	Garnet, Iron, Zinc, Manganese
Ore:	Brochantite, Chalcocite, Chalcopyrite, Chrysocolla, Cuprite, Malachite, Pyrite
Gangue:	Asbestos, Calcite, Diopside, Epidote, Hematite, Kaolin, Limonite, Magnetite, Pyrolusite, Pyroxene, Quartz, Tremolite
Orebody form:	IRREGULAR
Discovery year:	1875

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1902
Last production ended:	1918

Geology

Host rock:	Modoc Limestone;Morenci Shale;;Longfellow Limestone
Host type:	Shale,Limestone
Associated rock:	Morenci Granite Porphyry
Associated type:	Quartz Monzonite
Structure:	Ne Trending Porphyry Dikes, Prominent Fault On N Side Of Shannon Mountain, Extensive Fracturing Of Sediments Due To Porphyry Intrusions And Faulting
Tectonic:	Shannon Mountain
Alteration processes:	Some Of Largest Ore Bodies Were Originally Calcareous Sediments Altered Through Leaching And Oxidation, Vertical Extent Unknown

References

MRDS	M800161
DEP	10088880
Reference	{Deposit:: ABGMT-USBM FILE DATA}{Deposit:: ABGMT CLIPPINGS FILE}{Deposit:: LINDGREN, W., 1905, THE COPPER DEPOSITS OF THE CLIFTON-MORENCI DISTRICT, ARIZONA, USGS PROFESSIONAL PAPER 43}{Deposit:: BLM DISTRICT MAP 840}{Deposit:: PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.}{Other Database:: CIMRI}
Reporter	Calder, Susan R., Orris, Greta J.