Broken Hammer prospect (part of the Helmke Manganese group), Zenia, Trinity County, California, USAi
| Regional Level Types | |
|---|---|
| Broken Hammer prospect (part of the Helmke Manganese group) | Prospect |
| Zenia | - not defined - |
| Trinity County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 13' 9'' North , 123° 29' 20'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Alderpoint | 186 (2011) | 11.5km |
| Ruth | 195 (2011) | 15.3km |
| Phillipsville | 140 (2011) | 25.2km |
| Mad River | 420 (2011) | 26.0km |
| Miranda | 520 (2011) | 28.5km |
A Mn occurrence located in sec. 10, T4S, R6E, HM, 1.5 km (5,000 feet) N of Zenia, along a fork of Mud Creek, on National Forest land. Discovered 1942. Operated by Rae F. Helmke - lessee, California (1974). Owned by the White Ranch, California (1974) (??). MRDS database stated accuracy for this location is 1,000 meters.
NOTE: The USGS MRDS database attributes a significant number of Mn occurrences to the “Helmke Manganese group.” Many of these are clustered rather tightly near Kekawaka, constituting a true “group;” however, others, like this locality are situated a significant distance away and do not fit the usual context of a locality being a part of a “group.” This locality is 14.0 km (8.7 miles) N of Kekawaka.
NOTE 2: There is a dscrepancy between the 2 MRDS files which pertain to this locality, file #10095211 states that this location is on National Forest land, whereas file #10141932 indicates that it is on land owned by a ranch and is a private lease operated by Mr. Helmke.
Mineralization is a Mn deposit. The ore body is 2.13 meters thick. Siliceous low-grade ore zone is 7 feet thick. Local rocks include Franciscan Complex, unit 1 (Coast Ranges).
List of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10095211 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- California Coast RangesAccretionary Complex
- Franciscan DomainDomain
USA
- California
- Trinity County
- Coastal RangeMountain Range
- Trinity County
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0061050020
