Deposit ID | 10310570 |
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MRDS ID | M231404 |
Record type | Site |
Current site name | Hilltop-Slaven Gold Property |
Alternate or previous names | Independence Mine, Victoria Resource Corporation?s property, Hilltop Gold Mine |
Related records | 10044080 |
Geographic coordinates: | -116.80621, 40.41574 (WGS84) |
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Elevation | 2040 |
Relative position | The Hilltop Gold Mine is located about 18 miles SE of the town of Battle Mountain, Nevada. |
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Country | State | County |
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United States | Nevada | Lander |
Meridian | Township | Range | Section | Fraction | State |
---|---|---|---|---|---|
Mount Diablo | 029N | 046E | 04 | NW, 04 | Nevada |
Commodity | Importance |
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Gold | Primary |
Silver | Secondary |
Copper | Tertiary |
Lead | Tertiary |
Zinc | Tertiary |
Antimony | Tertiary |
Tin | Tertiary |
Materials | Type of material |
---|---|
Gold | Ore |
Pyrite | Ore |
Chalcopyrite | Ore |
Sphalerite | Ore |
Galena | Ore |
Tetrahedrite | Ore |
Stibnite | Ore |
Pyrite | Ore |
Arsenopyrite | Ore |
Cassiterite | Ore |
Pyrite | Ore |
Barite | Ore |
Marcasite | Ore |
Calcite | Ore |
Fluorite | Ore |
Jasper | Ore |
Quartz | Gangue |
Model code | 75 |
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USGS model code | 19c |
BC deposit profile | E03 |
Deposit model name | Distal disseminated Ag-Au |
Mark3 model number | 18 |
Host or associated | Host | ||
---|---|---|---|
Rock type | Sedimentary Rock > Chemical Sediment > Chert | ||
Rock type qualifier | brecciated | ||
Rock unit name | Valmy Formation | ||
|
Host or associated | Host | ||
---|---|---|---|
Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Argillite | ||
Rock unit name | Valmy Formation | ||
|
Host or associated | Host | ||
---|---|---|---|
Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Siltstone | ||
Rock type qualifier | minor | ||
Rock unit name | Valmy Formation | ||
|
Host or associated | Host | ||
---|---|---|---|
Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite | ||
Rock type qualifier | minor | ||
Rock unit name | Valmy Formation | ||
|
Host or associated | Associated |
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Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite |
Rock type qualifier | dacite porphyry intrusives |
Host or associated | Associated |
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Rock type | Plutonic Rock > Porphyry |
Rock type qualifier | dacite porphyry intrusives |
Host or associated | Associated |
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Rock type | Plutonic Rock > Granitoid > Quartz Monzonite |
Rock type qualifier | altered quartz monzonite porphyry |
Host or associated | Associated |
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Rock type | Plutonic Rock > Porphyry |
Rock type qualifier | altered quartz monzonite porphyry |
(1) | -116.80621, 40.41574 |
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Type | Description | Terms |
---|---|---|
Local | Hilltop Mine Fault | |
Regional | The Hilltop deposit falls within the Battle Mountain-Eureka mineral belt. |
General form | tabular |
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Operation type | Surface |
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Development status | Producer |
Commodity type | Metallic |
Deposit size | Small |
Significant | Yes |
Year of first production | 1907 |
Year of last production | 1919 |
District name | Hilltop District |
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District name | Bateman Canyon |
District name | Slaven Canyon |
Ownership category | Private |
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Ownership category | BLM Administrative Area |
Area name | Battle Mountain BLM administrative district |
Type | Owner-Operator |
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Owner | Placer Dome |
Year | 2003 |
Type | Owner-Operator |
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Owner | Victoria Resource Corporation (surrounding area) |
Year | 2003 |
NBMG Mining District File 153, Numerous press clippings
Lisle, R.E. and Desrochers, G.J., 1988, Geology of the Hilltop Gold Deposit, Lander County, Nevada in GSN Precious Metals Symposium Technical Volume.
Bonham, H.F., 1986, NBMG Map 91
Bonham, H.F., 1988, in NBMG MI-1987
NBMG, 1994, MI-1993
Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Database of significant deposits of gold, silver, copper, lead, and zinc in the United States; Part A, Database description and analysis; part B, Digital database: U.S. Geological Survey Open-File Report 98-206, 33 p., one 3.5 inch diskette.
Kelson, C.R., Keith, J.D., Christiansen, E.H., and Meyer, P.E., 2000, Mineral paragenesis and depositional model of the Hilltop gold deposit, Lander County, NV, in Cluer, J.K., Price, J.G., Struhsacker, E.M., Hardyman, R.F., and Morris, C.L., eds., Geology and ore Deposits 2000: The Great Basin and Beyond: Geological Society of Nevada Symposium Proceedings, Reno/Sparks, May 2000, p.1107-1132.
http://www.arizonastar.com/337/Hilltop-Slaven_Property.htm
Subject category | Comment text |
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Deposit | Gold mineralization is associated with sulfide minerals, which are hosted by a brecciated chert unit occupying the hanging wall of a fault. Deposit occurs in both concordant and discordant breccias and in narrow quartz veins. The deposit is distinguished by the occurrence of gold mineralization in quartz-carbonaceous matter-sulfide breccia matrix in a non-calcareous host rock. Veins strike N-S and dip steeply west. In the historic Hilltop workings, the deposit was described as shattered quartzite seamed with stringers of quartz and iron oxide carrying a large amount of free gold. Locally small bodies of pyrite and galena occur in the fracture planes of quartzite and minute stringers of a gray metallic mineral said to contain bismuth. Assays show silver equal by weight to gold. The quartzite near the ore is impregnated with pyrite and locally decomposed to a soft white claylike substance carrying high values in gold. Two sub-parallel west-dipping faults served as conduits for mineralization. Thrust faulting followed by Basin-and-Range style extension along both faults before and during mineralization created a highly permeable megabreccia (the main zone) which received later igneous intrusions and hydrothermal fluid deposition. A discordant quartz breccia pipe hosts both main zone and porphyry-related(?) mineralization. Initial weak porphyry-style Cu-Mo-Au mineralization throughout the Hilltop area was probably associated with a 41.2?0.5 Ma west-northwest trend of diorite-granodiorite intrusions. The porphyry mineralization is localized around the periphery of the intrusions. Precious metal mineralization within the main zone followed the porphyry event and consists of at least six temporally distinct but spatially overlapping events. Main zone mineralization exhibits characteristics of both high- and low- sulfidation epithermal systems. Gold is associated with silica and arsenopyrite in three of six main zone mineralization events and shows no affinity for a particular host rock type |
Type | Date | Name | Affiliation | Comment |
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Reporter | 01-FEB-2005 | LaPointe, D.D. | Nevada Bureau of Mines and Geology | |
Editor | 01-SEP-2007 | Schruben, Paul G. | U.S. Geological Survey | Converted from S&A FileMaker format to Oracle. Edit checks on rocks, units, and ages with Geolex search, and other fields. |