Deposit ID | 10044080 |
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MRDS ID | M231404 |
Record type | Site |
Current site name | Hilltop Mine |
Alternate or previous names | Independence |
Related records | 10310570 |
Geographic coordinates: | -116.80649, 40.41547 (WGS84) |
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Elevation | 2067 |
Relative position | 20 MI. SSE OF TOWN OF BATTLE MOUNTAIN |
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Country | State | County |
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United States | Nevada | Lander |
Meridian | Township | Range | Section | Fraction | State |
---|---|---|---|---|---|
Mount Diablo | 029N | 096E | 04 | Nevada |
Commodity | Importance |
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Gold | Primary |
Silver | Primary |
Copper | Secondary |
Lead | Secondary |
Zinc | Secondary |
Bismuth | Tertiary |
Tin | Tertiary |
Materials | Type of material |
---|---|
Cassiterite | Ore |
Chalcopyrite | Ore |
Galena | Ore |
Sphalerite | Ore |
Calcite | Gangue |
Fluorite | Gangue |
Iron | Gangue |
Jasper | Gangue |
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 | Associated | ||||||||
---|---|---|---|---|---|---|---|---|---|
Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||||
Rock unit name | Altered Quartz Monzonite Porphyry | ||||||||
Rock description | Altered Quartz Monzonite Porphyry | ||||||||
|
Host or associated | Host |
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Rock type | Plutonic Rock > Granitoid > Quartz Monzonite |
Host or associated | Host |
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Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite |
Rock unit name | Quartzite |
Rock description | Quartzite |
(1) | -116.80649, 40.41547 |
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Type of structure | Regional |
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Structure description | Roberts Mtns. Thrust, At Depth |
Strike | NW |
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Dip | VERTICAL |
Development status | Producer |
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Commodity type | Metallic |
Deposit size | Small |
Significant | No |
Discovery year | 1906 |
Discovery method | Ore-Mineral In Place |
Year of first production | 1912 |
District name | Hilltop District |
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Ownership category | Private |
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Agency | Database name | Acronym | Record ID | Notes |
---|---|---|---|---|
USGS | Mineral Resources Data System | MRDS | M231404 |
STAGER, H. K., 1977, GEOLOGY AND MINERAL DEPOSITS OF LANDER CO., NEV.; NEV. BUREAU OF MINES BULL. 88, PT II
EMMONS, W. H., 1910, RECONNAISSANCE OF SOME MINING CAMPS IN NEVADA; USGS BULL. 408
VANDERBURG, W. O., 1939, RECONNAISSANCE OF MINING DISTRICTS IN LANDER CO., NEV: USBM INFO. CIRC. 7043
Subject category | Comment text |
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Deposit | "SHATTERED QUARTZITE IS SEAMED WITH STRINGERS OF QUARTZ AND IRON OXIDE CARRYING A LARGE AMOUNT OF FREE GOLD. HERE AND THERE ARE SMALL BODIES OF PYRITE AND GALENA IN THE FRACTURE PLANES OF QUARTZITE AND MINUTE STRINGERS OF GRAY METALLIC MINERAL SAID TO CONTAIN BISMUTH. ASSAYS SHOW SILVER...BY WEIGHT EQUAL TO GOLD. THE QUARTZTITE NEAR THE ORE IS IMPREGNATED WITH PYRITE AND LOCALLY DECOMPOSED TO A SOFT WHITE CLAYLIKE SUBSTANCE SAID TO CARRY HIGH VALUES IN GOLD."-EMMONS |
Deposit | IN 1907, HIGH-GRADE GOLD ORE WAS DISCOVERED IN HILLTOP CANYON, BEGINNING RUSH TO THE AREA. HILLTOP MILLING AND REDUCTION CO. BUILT A 10-STAMP MILL IN ABOUT 1910; CONVERTED IN 1914 TO A CYANIDATION MILL. HILLTOPS INDEPENDENCE MINES WERE LOCATED IN 1906. PAINCIPAL PRODUCTION FROM HILLTOP DISTRICT WAS FROM 1912 TO 1921. TOTAL PRODUCTION FROM THE DISTRICT FROM 1902 TO 1936 WAS $701,855, MAINLY IN SILVER AND GOLD, WITH SOME COPPER AND LEAD. ; INFO.SRC : 1 PUB LIT |
Type | Date | Name | Affiliation | Comment |
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Reporter | 01-DEC-1981 | La Pointe, D. D. | Nevada Bureau of Mines and Geology |