| Deposit ID | 10023472 |
|---|---|
| MRDS ID | I000458 |
| Record type | Site |
| Current site name | White Christmas |
| Alternate or previous names | Bronko Claims |
| Geographic coordinates: | -116.03055, 32.71174 (WGS84) |
|---|---|
| Relative position | 3 MILES SE OF OCOTILLO. THE DEPOSIT IS JUST OUTSIDE OF THE JACUMBA (IN-KO-PAH) WILDERNESS STUDY AREA. |
Political divisions (FIPS codes)
Imperial(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
In-Ko-Pah Gorge(quadrangle 1:24,000 scale)
El Cajon(quadrangle 1:100,000 scale)
San Diego(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Salton Sea(hydrologic accounting unit)
Southern Mojave-Salton Sea(hydrologic subregion)
California(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management CA)
Bureau of Land Management CA BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | California | Imperial |
| Commodity | Importance |
|---|---|
| Diatomite | Primary |
| Silica | Primary |
| Materials | Type of material |
|---|---|
| Diatomite | Ore |
| Biotite | Gangue |
| Feldspar | Gangue |
| Quartz | Gangue |
| Result | SAMPLES ASSAY AS HIGH AS 83.62% SIO2 FOUND IN 7 FOOT CHANNEL SAMPLE FROM SOUTHERN EXPOSURE. HIGH CONTENT OF SAND, SILT, AND BROKEN TESTS. |
|---|
| Model code | 222 |
|---|---|
| USGS model code | 31s |
| Deposit model name | Lacustrine diatomite |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Lake Sediments | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Unconsolidated Deposit > Volcanic Ash |
| (1) | -116.03055, 32.71174 |
|---|
| Thickness | 0.3M |
|---|---|
| Length | 60.96M |
| Width | 18.29M |
| Development status | Past Producer |
|---|---|
| Commodity type | Both |
| Deposit size | Small |
| Significant | No |
| Ownership category | BLM Administrative Area |
|---|---|
| Area name | Jacumba (In-Ko-Pah) Wilderness Study Area |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1987 | ||||||||||||||
| Total resources | 40000000mt ore | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | I000458 |
TODD, V.R., KILBURN, J.E., DETRA, D.E., GRISCOM, ANDREW, KRUSE, F.A., AND MCHUGH, E.L., 1987, MINERAL RESOURCES OF THE JACUMBA (IN-KO-PAH) WILDERNESS STUDY AREA, IMPERIAL COUNTY, CALIFORNIA: U.S. GEOLOGICAL SURVEY BULLETIN 1711-D, 18 P
CIMRI
TODD AND OTHERS, 1987.
| Subject category | Comment text |
|---|---|
| Deposit | DIATOMITE BEDS UP TO 12 FT THICK ARE FLAT-LYING AND EXPOSED IN TWO EROSIONAL REMNANTS. THE NORTHERN EXPOSURE IS 150 FT LONG AND UP TO 60 FT WIDE. THE SOUTHERN EXPOSURE IS 200 FT LONG AND UP TO 50 FT WIDE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1990 | Orris, Greta J. | U.S. Geological Survey | |
| Updater | 01-JUN-1993 | Gray, Floyd | U.S. Geological Survey |
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.