| Deposit ID | 10055383 |
|---|---|
| MRDS ID | RL10058 |
| Record type | Site |
| Current site name | Lang |
| Alternate or previous names | Sterling Mine |
| Related records | 10163254 |
| Geographic coordinates: | -118.36757, 34.46668 (WGS84) |
|---|---|
| Relative position | 1.25 MILES EAST OF MINT CANYON HIGHWAY, 3.5 MILES NORTH OF TOWN OF LANG |
Political divisions (FIPS codes)
Los Angeles(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Agua Dulce(quadrangle 1:24,000 scale)
Los Angeles(quadrangle 1:100,000 scale)
Los Angeles(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Santa Clara(hydrologic unit)
Ventura-San Gabriel Coastal(hydrologic accounting unit)
Southern California Coastal(hydrologic subregion)
California(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | California | Los Angeles |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 5 | 14 | 27,28,29,31,32 | California |
| Commodity | Importance |
|---|---|
| Boron-Borates | Primary |
| Materials | Type of material |
|---|---|
| Colemanite | Ore |
| Ulexite | Ore |
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Arkose | ||
| |||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale |
| Rock unit name | Vasquez Series |
| Rock description | Vasquez Series |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| (1) | Miocene nonmarine rocks |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Ne Trending Folds Modified By Cross Faults And Longitudinal Faults: Interbedded Nature Of Volcanics And Sediments (Competent & Incompetent) Contribute To Structural Complexity In The Area |
| General form | STRATIFORM |
|---|---|
| Dip | 70 S |
| Thickness | 9.14M |
| Length | 304.8M |
| General form | STRATIFORM |
|---|---|
| Dip | 70 S |
| Development status | Past Producer |
|---|---|
| Commodity type | Non-metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1907 |
| Year of first production | 1908 |
| Year of last production | 1922 |
| Type | Operator |
|---|---|
| Owner | Pacific Coast Borax Co |
| First year | 1921 |
| Type of workings | Underground |
|---|---|
| Overall depth | 106.68M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | RL10058 |
SMITH, G.I., 1985, BORATES DEPOSITS IN THE UNITED STATES - DISSIMILAR IN FORM, SIMILAR IN GEOLOGIC SETTING. IN BARKER, J.M. & LEFOND, S.J. (EDS) BORATES: ECONOMIC GEOLOGY AND PRODUCTION. AMERICAN INSTITUTE OF MINING, METALLURGICAL AND PETROLEUM ENGINEERS, INC. NEW YORK, P. 37-51.
GAYE, T.E. AND HOFFMAN, S.R., 1954, MINES AND MINERAL DEPOSITS OF LOS ANGELES COUNTY, CALIFORNIA. CALIFORNIA JOURNAL OF MINES AND GEOLOGY, 50 (3-4), 467-710., O00027
GAYE NAD HOFFMAN, 1954
| Subject category | Comment text |
|---|---|
| Deposit | THE MAIN COLEMANITE BED IS UP TO 30 FT THICK; ABOUT 1000 FT LONG THAT IS ENCLOSED AND INTERMIXED WITH SHALE. THE BED STRIKES NEAR NORTH DIPPING ABOUT 70S ON THE NORTH FLANK OF A SYNCLINE PUNGING GENTLY SW. THINNER COLEMANITE LAYERS AND SEVERAL HOWLITE-BEARING STRATA ALSO OCCUR BUT WERE NOT MINED. SUB-ECONOMIC B LAYERS EXTEND FOR NEARLY 2 MILES ALONG A NE STRIKE OF THE MAIN DEPOSIT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-SEP-1993 | R.P. Langford | BHP Utah Industries |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.