White Hope Limestone deposit, Ocotillo, Imperial County, California, USAi
| Regional Level Types | |
|---|---|
| White Hope Limestone deposit | Deposit |
| Ocotillo | - not defined - |
| Imperial County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
32° 42' 15'' North , 116° 0' 24'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ocotillo | 266 (2011) | 4.0km |
| Jacumba Hot Springs | 561 (2014) | 19.6km |
| Rumorosa | 1,836 (2018) | 20.5km |
| Ejido Jacumé | 290 (2013) | 21.4km |
| Boulevard | 315 (2011) | 25.3km |
A limestone occurrence located in the SW¼ sec. 6, T17S, R10E, SBM, 4.0 km (2.5 miles) SSW of Ocotillo, on Bureau of Land Management administered land. MRDS database stated accuracy for this location is 10 meters.
Mineralization is a limestone deposit with associated gneissic tonalite. The ore body strikes N10-35W and dips 35-55SW at a thickness of 6.4 meters and a length of 457.2 meters. A granitic sill intrudes limestone in places and follows segments of the beds. Two parallel beds of coarse-grained, white-gray limestone occur along the foliation in gneissic tonalite and contain sparsely disseminated graphite. One bed is 8 to 21 feet thick (averaging 14 feet) and is exposed along strike for about 1,500 feet. The second bed is found 300 to 400 feet E of the first and is 20 feet thick and exposed for 1,000 feet along strike. Local rocks include Tertiary pyroclastic and volcanic mudflow deposits, unit 6 (Jacumba) and/or Miocene nonmarine rocks.
Workings include surface openings comprised of 1 small open cut.
Reserve-Resource data are found in: Todd and others (1987).
Analytical data results: Western limestone bed (an average of 4 samples): 0.30% Al2O3, 54.5% CaO, 0.10% Fe2O3, 0.76% MgO, <0.02% P2O5, 2.8% SiO2.
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Standard Detailed Gallery Strunz Chemical ElementsMineral List
1 valid mineral.
Rock Types Recorded
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Other Databases
| Link to USGS MRDS: | 10023475 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
- Sonoran DesertDesert
North America Plate
- Franciscan DomainDomain
- Peninsular Ranges BatholithVolcanic Arc
- Southern California Borderland BasinsBasin
Pacific PlateTectonic Plate
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