Mine detail: Dover Copper Group

Previously called 'Bell GroupSt. Joe GroupAnita GroupMargot GroupTucky GroupDoverGoldbeltGold Belt GroupKeating GroupMines: Keating'

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Location

Lat / long:

33.10593, -109.40537

Resource(M)

Primary:	Copper
Secondary:	Silver, Gold, Lead
Ore:	Chalcocite, Chrysocolla, Covellite, Malachite, Pyrite
Gangue:	Hematite, Kaolin, Limonite
Orebody form:	IRREGULAR

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1913
Last production ended:	1945

Geology

Host rock:	Longfellow Limestone
Host type:	Quartz Monzonite
Associated rock:	Morenci Granite Porphyry;Coronado Quartzite
Associated type:	Diabase
Structure:	Ne Trending Diabasic And Granite Prophyry Dike Intrusives Into Quartzite And Limestones, Step-Faulting Along Veins In Locality
Tectonic:	Coronado Granite Massif; Transition Between Basin And Range And Colorado Plateau Provinces
Alteration processes:	Intensive Surface Oxidation To Unknown Depths And Formation Of Gossans

References

MRDS	M800413
DEP	10048286
Reference	{Deposit:: ABGMT-USBM FILE DATA}{Deposit:: BLM DISTRICT SHEET 840}{Deposit:: STEVENS, H.J., 1911, THE COPPER HANDBOOK, VOL. X, PAGE 616, CLIFTON MORENCI CO}{Deposit:: ABGMT CLIPPINGS FILE}{Deposit:: BENNETTI K.C., 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCIA METCALF DISTRICT, GREEN LEE COUNTY, ARIZONA: M.S. THESIS, UNIVERSITY OF ARIZONA, 15.3 P.}{Deposit:: ARIZONA DEPRT OF MINERAL RESOURCES FILE DATA}{Deposit:: MINING REPORTER, VOL. LIII, NO. 16 (APRIL 19, 1906), PAGES 386-390, REVIVAL OF GOLD MINING IN CLIFTON-MORENCI, ARIZONA, DISTRICT}{Deposit:: USBM FILES, UNDER DOVER}{Deposit:: USGS PP 43, P. 344-345}
Reporter	Calder, Susan R.