The Boston Hill East Mines is a manganese and iron mine located in Grant county, New Mexico.
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
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Boston Hill East Mines MRDS details
Site Name
Primary: Boston Hill East Mines
Secondary: Includes: Silver Spot
Secondary: Legal Tender
Secondary: Iron Spike
Secondary: Adonis
Secondary: California
Secondary: Atlas
Secondary: And Luck Manganese.
Commodity
Primary: Manganese
Primary: Iron
Location
State: New Mexico
County: Grant
District: Boston Hill District (Silver City)
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Year: 1980
Time Period: 1883-1980
Material type: ORE MN FE EST
Description: Cp_Grade: ^10-13% Mn, 30-40% Fe
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: M
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Silurian
Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Silurian
Name: Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Hematite
Ore: Limonite
Ore: Pyrolusite
Ore: Magnetite
Comments
Comment (Location): ON BOSTON HILL SSW OF SILVER CITY
Comment (Commodity): PRIMARY ORE CONTAINS HEMATITE, MAGNETITE, MESITITE (FERROAN-MANGANOAN MAGNESITE) AND MINOR BASE-METAL SULFIDES.
Comment (Development): EXPLORED IN LATE 1800'S FOR SILVER, WITH SOME PRODUCTION AS EARLY AS 1883. PRINCIPAL PRODUCTION BEGAN IN 1916 AND HAS CONTINUED WITH SOME INTERRUPTIONS TO PRESENT (1980). SINCE 1937 ALL MINING HAS BEEN FROM OPEN PITS.
Comment (Workings): ORE MINED FROM HUNDREDS OF OPEN PITS, OPEN CUTS, TRENCHES, AND SHALLOW UNDERGROUND WORKINGS IN A 2.5 SQUARE KM. AREA. SOME OF THE WORKINGS HAVE SHAFTS UP TO 150 FEET DEEP WITH SOME STOPING IN THE TUNNELS.
Comment (Production): PRODUCTION FIGURES INCLUDE BOSTON HILL MINES PRODUCTION
Comment (Deposit): SUPERGENE ENRICHED REPLACEMENT BODIES ALONG FRACTURES, IN BRECCIATED ROCKS AND IN PERMEABLE BEDS IN SILURIAN FUSSELMAN DOLOMITE CUT BY NE-TRENDING FAULTS ALONG THE WEST SIDE OF THE SILVER CITY STOCK. ORE BODIES OCCUR ONLY ABOVE THE WATER TABLE WHICH IS GENERALLY LESS THAN 60 M. DEEP.
References
Reference (Deposit): FARNHAM, L. L., 1961, U.S. BUREAU OF MINES INFORMATION CIRCULAR 8030, P. 23-25.
Reference (Deposit): ENTWISTLE, L. P., 1944, NMBMMR BULL. 19, P. 55-57.
Reference (Deposit): ELLIS, R. W., 1929, NEW MEXICO UNIVERSITY BULL. 167, GEOLOGICAL SERIES, V. 4, NO. 2, P. 41-42.
Reference (Deposit): KELLEY, V. C., 1949, NEW MEXICO UNIVERSITY PUBLICATIONS IN GEOLOGY SERIES, NO. 2, P. 131.
Reference (Deposit): SOULE, J. H., 1948A, U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 4217, 5 P.
Reference (Deposit): DORR, J. V. N., 1965, MANGANESE, IN MINERAL AND WATER RESOURCES OF NEW MEXICO: U.S. 89TH CONGRESS, 1ST SESSION, SENATE COMMITTEE ON INTERIOR AND INSULAR AFFAIRS, P. 183-195.
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