Counties, states, countries, continents, or oceans | |
Lander | county |
Nevada | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Tenabo | quadrangle 1:24,000 scale |
Crescent Valley | quadrangle 1:100,000 scale |
Winnemucca | quadrangle 1:250,000 scale |
Watershed boundaries (USGS hydrologic units) | |
Middle Humboldt | hydrologic unit |
Humboldt | hydrologic accounting unit |
Black Rock Desert-Humboldt | hydrologic subregion |
Great Basin | hydrologic region |
Unit | State | Lithology |
---|---|---|
Basin Assemblage - Shale, chert, quartzite, greenstone, and limestone | NV | Devonian to Upper Cambrian |
Alluvium, undifferentiated | NV | Holocene and Pleistocene |
Felsic phaneritic intrusive rocks | NV | Miocene to Eocene |
ID | Data type | Description |
---|---|---|
Roberts Mountains | M-Dz | Roberts Mountains 2900 line km with spacing 1.60 km over parts of NV |
Winnemucca | M/R-D | Winnemucca 4747 line km with spacing 4.80 km over parts of NV |
Tract | Deposit Type | Mineralization age |
---|---|---|
GB20 | Massive sulfide, Besshi | Paleozoic |
GB05 | Skarn Au, truncated | Mesozoic - Tertiary |
GB18 | Distal disseminated Ag-Au | Mesozoic - Tertiary |
GB02 | Skarn Cu | Mesozoic - Tertiary |
GB15 | Polymetallic replacement + skarn Zn-Pb | Mesozoic - Tertiary |
GB19 | Massive sulfide, Cyprus | Paleozoic |
GB08 | Porphyry Cu | Cretaceous |
GB09 | Porphyry Cu | Tertiary |
GB10 | Porphyry Cu | Jurassic |
GB30 | Sediment-hosted Au | Phanerozoic |
GB33 | Sedimentary exhalative Zn-Pb | Paleozoic |
Domain | Crust type | Region |
---|---|---|
Mojave | Lateral-extensional orogen | Central and Southwest |
Sample ID | Material | Source |
---|---|---|
98-WM-264 | Sediment | Stream, Dry |
98-WM-280 | Sediment | Stream, Wet |
98-WM-403 | Sediment | Stream, Wet |
Sample ID | Date collected | Sample type |
---|---|---|
5148822 | 1976-08-04 | Dry stream sediment sample dried at 110øC and sieved to -18 and +35 mesh (less than 1000 and greater than 500 microns). |
5148838 | 1976-08-03 | Wet stream sediment sample dried at 110øC and sieved to -18 and +35 mesh (less than 1000 and greater than 500 microns). |
5149317 | 1976-08-29 | Wet stream sediment sample dried at 110øC and sieved to -18 and +35 mesh (less than 1000 and greater than 500 microns). |
5149318 | Wet stream sediment sample dried at 110øC and sieved to -18 and +35 mesh (less than 1000 and greater than 500 microns). |
Sample ID | Date collected | Sample type |
---|---|---|
1090283 | 1976-08-03 | Stream water sample filtered through a 0.45 micron membrane filter. |
Site name | Development | Commodities |
---|---|---|
Grand Prise | Past Producer | AU AG PB CU |
Louie | Past Producer | AG PB AU CU |
Silver Prize | Past Producer | AG PB AU CU ZN |
Lander Mine | Past Producer | PB AG CU AU |
Bullion Mtn | Occurrence | BA |
Little Chief Mine | Past Producer | GEM |
Bullion Mountain Cvp | Prospect | AU |
Gold Occurrence | Unknown | AU |
Crescent Valley Project Akiko | Prospect | AU |
Lovie | Past Producer | AG CU AU PB |
Blue Matrix | Past Producer | GEM |
Blue Matrix Mine | Unknown | GEM |
Barite Mine | Unknown | BA |
Little Chief Mine | Unknown | GEM |
Tract name | Deposit type | Geology |
---|---|---|
Cascade Arc | porphyry copper | U.S. part of a continental margin arc that formed during subduction of the Pacific and Juan de Fuca plates beneath western North America |
Great Basin Tertiary | porphyry copper | Mid-Tertiary volcanic fields associated with postsubduction extension in the Great Basin |
Sierran Arc | porphyry copper | A composite island-continental margin arc that formed during subduction of the Farallon Plate beneath western North America |
Western U.S. and Sonoran Desert Jurassic Arc | porphyry copper | U.S. and Mexican parts of a composite island-continental margin arc that formed during subduction of the Farallon Plate beneath western North America |