Counties, states, countries, continents, or oceans | |
Nevada | county |
California | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Nevada City | quadrangle 1:24,000 scale |
Yuba City | quadrangle 1:100,000 scale |
Chico | quadrangle 1:250,000 scale |
Watershed boundaries (USGS hydrologic units) | |
Upper Yuba | hydrologic unit |
Lower Sacramento | hydrologic accounting unit |
Sacramento | hydrologic subregion |
California | hydrologic region |
Unit | State | Lithology |
---|---|---|
Mesozoic gabbroic rocks, unit 2 (undivided) | CA | Triassic to Cretaceous |
Ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains) | CA | Late Proterozoic(?) to Early Jurassic |
ID | Data type | Description |
---|---|---|
Grass Valley--Nevada City | M-Dz | Grass Valley--Nevada City 828 line km with spacing 0.80 km over parts of CA |
Chico | M/R-D | Chico 4869 line km with spacing 4.80 km over parts of CA-NV |
Tract | Deposit Type | Mineralization age |
---|---|---|
PC03 | Skarn Cu | Mesozoic |
PC08 | Porphyry Cu | Mesozoic |
PC40 | Low-sulfide Au-quartz vein | Mesozoic |
Domain | Crust type | Region |
---|---|---|
Foothills-Wallowa | Oceanic arc | Western Cordillera |
Record | Type | Comment |
---|---|---|
Porter Property | ||
Mulcahy |
Sample ID | Rock type | Rock name |
---|---|---|
D237744 | igneous | unknown |
Site name | Development | Commodities |
---|---|---|
Porter Property | Occurrence | CR |
Codd Prospects | Occurrence | CR |
Mulcahy | Occurrence | CR |
Union | Past Producer | AU |
Peck Fraction | Occurrence | AU |
Phoenix | Occurrence | AU |
Red Hill Specimen | Occurrence | AU |
Stratton | Occurrence | AU |
Midnight | Producer | FE |
Patty Craney | Producer | AU CU |
Jordan | Producer | AU CU PB |
Patty Craney | Past Producer | AU CU |
Stratton | Occurrence | AU |
All's Well Qtz | Past Producer | AU |
Phoenix | Occurrence | AU |
Mascot | Occurrence | AU |
New Eureka | Occurrence | AU |
Ophirophir Hill | Occurrence | AU |
Red Hill Specimen | Occurrence | AU |
New Pittsburg | Occurrence | AU |
Greely Blackman | Occurrence | AU |
Codd Prospects | Prospect | CR |
Alls Well | Occurrence | AU |
Uranus | Occurrence | AU |
Greely Blackman Qtz. | Past Producer | AU |
Peck Fraction | Occurrence | AU |
Porter Property | Past Producer | CR FE |
Jordan | Occurrence | AU CU PB |
Mulcahy | Prospect | CR |
Standard | Past Producer | AU |
Deposit name | Deposit type | Location |
---|---|---|
Porter Property | Past Producer | California, United States |
Porter Property | Occurrence | California, United States |
Mulcahy | Occurrence | California, United States |
Codd Prospects | Occurrence | California, United States |
Codd Prospects | Occurrence | California, United States |
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 |
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 |
Feature ID | Feature type | Feature name |
---|---|---|
Prospect Pit | point | |
Prospect Pit | point | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon | |
Tailings - Dredge | polygon |