The Mansfield Claim is a copper mine located in Greenlee county, Arizona at an elevation of 6,348 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 6,348 Feet (1,935 Meters)
Commodity: Copper
Lat, Long: 33.12611, -109.33000
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Mansfield Claim MRDS details
Site Name
Primary: Mansfield Claim
Secondary: Expectation Group
Commodity
Primary: Copper
Secondary: Gold
Secondary: Silver
Location
State: Arizona
County: Greenlee
District: Copper Mountain District
Land Status
Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Phelps Dodge Corp., Morenci Branch )
Years: 1922 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1875
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland
Mineral Deposit Model
Not available
Orebody
Form: POCKET
Structure
Type: R
Description: Ne-Trending Narrow Porphyry Dikes In Coarse Reddish Quartzitic Granite; Veins Consist Of Many Very Sharply Defined Fissure Planes Striking Nne
Type: L
Description: Granite Country Rock Fragmented By Small Dike Of Basalt Or Andesite; Volcanic Dike Fractures Porphyry Dike Aout 15 Feet Below Surface
Alterations
Alteration Type: L
Alteration Text: Surface Oxidation To Unknown Depths; Porphyry Greatly Bleached By Sericitization And Extensively Cemented By Quartz Veinlets
Rocks
Name: Plutonic Rock
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Plutonic Rock
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Analytical Data: 6 % CU
Materials
Ore: Malachite
Gangue: Quartz
Gangue: Epidote
Gangue: Orthoclase
Comments
Comment (Deposit): Discovery Year: LATE 1800'S
Comment (Development): OWNERS INCLUDED CLIFTON CONSOLIDATED COPPER MINES CO, NEW ENGLAND AND CLIFTON COPPER MINES CO (1903-1912), DETROIT COPPER MINES CO OF ARIZONA (1912-1921); MANSFIELD CLAIM WAS UNPATENTED
Comment (Workings): DEVELOPMENTS INCLUDED SMALL SURFACE WORKINGS AND ONE TUNNEL 300 FT LONG
Comment (Geology): THE ORE WAS MAINLY OXIDIZED.
Comment (Location): 0.5 MILE NNW OF SUMMIT OF COPPER KING MOUNTAIN; ON RIDGE DESCENDING INTO PLACER GULCH ; INFO FROM LAND.ST :(1973)
References
Reference (Deposit): STEVENS, 1911, THE COPPER HANDBOOK, V. 10, P. 1284-1285, NEW ENGLAND AND CLIFTON COPPER CO
Reference (Deposit): BENNETT, 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: M.S. THESIS UNIVERSITY OF ARIZONA, 153 P.
Reference (Deposit): LINDGREN, 1905, USGS PROF PAPER 43, P. 362-263
Reference (Deposit): WEED, 1914, THE COPPER HANDBOOK, V. 11, P. 648, NEW ENGLAND AND CLIFTON COPPER CO
Arizona Gold
"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.
