Commodities
PrimaryLead, Zinc
SecondaryFluorine-Fluorite, Gold, Silver, Copper
TertiaryTungsten, Beryllium, Molybdenum, Iron
Commodity typeB
Deposit
Deposit typeCONTACT METASOMATIC
Deposit sizeS
Ore controlMINERALIZED SOLUTIONS EMANATING FROM SHALLOW IGNEOUS MASSES WERE CHANNELED ALONG FAULT ZONES AND LOCALIZED IN FAVORABLE HOST ROCKS.
Geology
StructureTHE DISTRICT LIES WITHIN AN ELONGATE, NORTH-SOUTH TRENDING MOUNTAIN RANGE. LARGE DISPLACEMENT FAULTS WHICH ARE CONTINUOUS FOR GREAT LATERAL DISTANCES STRIKE NORTH TO NORTH-NORTHWEST AND SMALLER DISPLACEMENT CROSS FAULTS STRIKE NORTHEAST TO NORTHWEST. ON THE WESTERN SIDE OF THE RANGE A MAJOR ZONE OF WESTWARD DIPPING NORMAL FAULTS FORMS A WESTWARD FACING SCARP AND FORMS A SHARP BOUNDARY BETWEEN THE RANGE AND A WELL DEFINED GRABEN VALLEY. THE EASTERN BOUNDARY IS LESS DISTINCT AND IS GENERALLY MARKED BY EASTWARD DIPPING NORMAL FAULTS WHICH FORM A BROAD TRANSITION ZONE BETWEEN THE RANGE AND THE RIO GRANDE RIFT. A MAJOR CROSS FAULT DIVIDES THE RANGE INTO TWO FAULT BOUNDED BLOCKS OF EASTWARD DIPPING SEDIMENTARY ROCKS INTRUDED BY NUMEROUS HYPABYSSAL IGNEOUS ROCKS.
Economic & production
Development statusProducer
First production1880
Discovery year1880
Identification
Deposit ID60001709
MRDS IDW016587
Alternate namesIron Mountain No. 2 District, Cuchillo Negro District
RegionNA
Data scoreD
Coordinates32.37513, -107.6256
References
HARLEY, G.T., 1934 NMBMMR BULL 10, P.113-125JAHNS, R.H., 1955 NMGS 6TH FIELD CONFERENCE, P.159-174MCANULTY, W.N., 1978 NMBMMR MEMOIR 34, P. 51-54