The Segerstrom-Heizer Mine is a iron mine located in Pershing county, Nevada at an elevation of 4,259 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: 4,259 Feet (1,298 Meters)
Commodity: Iron
Lat, Long: 40.04222, -118.14750
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.
Segerstrom-Heizer Mine MRDS details
Site Name
Primary: Segerstrom-Heizer Mine
Secondary: NBMG Sample Site 2586
Commodity
Primary: Iron
Location
State: Nevada
County: Pershing
District: Mineral Basin 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: Surface
Ownership
Owner Name: Southern Pacific Co.-Santa Fe Minerals
Years: 1985 -
Owner Name: Segerstrom And Heizer
Production
Year: 1961
Time Period: 1957-1961
Material type: FE
Description: Cp_Grade: ^60%
Year: 1966
Time Period: To 1966
Material type: ORE FE
Description: Cp_Grade: ^60%
Year: 1966
Time Period: 1962-1966
Material type: FE
Description: Cp_Grade: ^60%
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Model Name: Skarn Fe
Orebody
Form: MASSIVE, VEIN, DISSEMINATED
Structure
Type: R
Description: Major Faults
Type: L
Description: Main Fault And Cross Faults
Alterations
Alteration Type: L
Alteration Text: Scapolitized; Chloritized
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Jurassic
Analytical Data
Analytical Data: NBMG SAMPLE 2586, DUMP SAMPLE OF GABBRO WITH CHLORITE, SCAPOLITE, MAGNETITE, PYRITE, APATITE.
Materials
Ore: Magnetite
Ore: Pyrite
Ore: Marcasite
Ore: Hematite
Gangue: Chlorite
Gangue: Calcite
Gangue: Apatite
Gangue: Actinolite
Comments
Comment (Deposit): DRILLING INDICATES THAT MASSIVE ORE OCCURS TO DEPTH OF 500 FT AND EXTENDS 1800 FT E-W AND 600 FT N-S OF PIT. ORE IS MAGNETITE WITH MINOR HEMATITE IN VEINS AND IRREGULAR MASSES; THE ORE BODIES FORMED AS REPLACEMENT BODIES IN GABBRO. ORE LOCALIZED BY MAJOR NE STRIKING, NW-DIPPING FAULT. MINOR NORTH TO NW-STRIKING FAULTS OFFSET MAIN FAULT AND FORMED BRECCIATED ZONES WHERE IRREGULAR MASSES OF MAGNETITE ARE LOCALIZED. DISSEMINATED MAGNETITE OCCURS IN BEDROCK GABBRO. IRON ORE RANGES FROM PURE MAGNETITE (72.4%) TO A MIXTURE OF MAGNETIZED AND CHLORITIZED HOST ROCK WITH 50-60% FE CONTENT.
Comment (Deposit): OWNED BY SOUTHERN PACIFIC CO. LEASED TO SEGERSTROM AND HEIZER; DODGE CONSTRUCTION 1945-61; NEVADA BARTH 1962-66, LARGE OPEN PIT. DRILLING INDICATES THAT MASSIVE ORE OCCURS TO DEPTH OF 500 FEET AND EXTENDS 1800 FEET E-W AND 600 FEET N-S OF OPEN PIT. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV
Comment (Location): EXCELLENT ACCESSIBILITY. NORTH-CENTER SEC. 15.; PREVIOUS QUAD DESIGNATION = BUFFALO MOUNTAIN (1954) 1:625000
Comment (Reserve-Resource): ORE EXTENDS TO 500 FEET IN DEPTH & EXTENDS 1800 EAST-WEST AND 600 FEET NORTH-SOUTH OF OPEN PIT
Comment (Production): TOTAL PRODUCTION TO 1966 WAS 1.2 MILLION TONS
Comment (Development): LEASED TO DODGE CONSTRUCTION 1945-61 AND TO NEVADA BARTH 1962-66.NO ACTIVITY IN 1985 AT TIME OF EXAMINATION
Comment (Workings): LARGE OPEN PIT
Comment (Geology): MAGNETITE WITH MINOR HEMATITE IN VEINS AND IRREGULAR MASSES, FORMED AS REPLACEMENT BODIES IN GABBRO. ORE LOCALIZED BY MAJOR NE STRIKING, NW-DIPPING FAULT. MINOR NORTH TO NW-STRIKING FAULTS OFFSET MAIN FAULT AND FORMED BRECCIATED ZONES WHERE IRREGULAR MASSES OF MAGNETITE ARE LOCALIZED. DISSEMINATED MAGNETITE OCCURS IN BEDROCK GABBRO. IRON ORE RANGES FROM PURE MAGNETITE (72.4%) TO A MIXTURE OF MAGNETIZED AND CHLORITIZED HOST ROCK WITH 50-60% FE CONTENT.
References
Reference (Deposit): CAMERON, E.N., 1939, GEOLOGY AND MINERALIZATION OF THE NORTHEASTERN HUMBOLDT RANGE, NEVADA; GSA BULL. VOL. 50, P 563-634.
Reference (Deposit): BONHAM, H. F., JR., 18 JUL 85, NBMG FIELD EXAMINATION REPORT AND SAMPLE ANALYSIS.
Reference (Deposit): NBMG STAFF, 1985, NBMG OFR 85-3.
Reference (Production): JOHNSON, 1977
Reference (Deposit): MOORE, 1971, CALIFORNIA-NEVADA IRON RESOURCES AND IRON ORE MARKETS: USBM 1C 8511
Reference (Deposit): REEVES AND KRAL, 1955, IRON ORE DEPOSITS OF NEVADA, PART A, GEOLOGY AND IRON ORE DEPOSITS OF THE BUENA VISTA HILLS, CHURCHILL AND PERSHING COUNTIES, NEVADA: NBMG BULL. 53
Reference (Deposit): JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA: NBMG BULL. 89
Nevada Gold
Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.
