Unnamed Occurrence (ARDF - ID125; north bank of Bonanza Creek), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID125; north bank of Bonanza Creek) | - not defined - |
| Iditarod Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
62° 21' 31'' North , 157° 48' 50'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Crooked Creek | 105 (2016) | 56.5km |
Location: This occurrence is at the base of a small bluff on the north side of Bonanza Creek, about 2.5 miles northeast of the mouth of First Chance Creek. The prospect is adjacent to Bonanza Creek. The prospect is near the center of section 9, T. 26 N., R. 46 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence is a stockworks of quartz veinlets in a granite-porphyry sill that outcrops along the north bank of Bonanza Creek, 2.5 miles northeast of the mouth of First Chance creek. The zone of veinlets is 3-6 feet thick and and can only be seen in outcrops along the stream. Some silicification was noted in other areas of the outcrop (Bundtzen and others, 1992; Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). Grab samples contained up to 2,900 parts per billion (ppb) gold and 1,700 ppb mercury (McGimsey and others, 1988).
Workings: Samples were collected by the U.S. Geological Survey and Alaska Division of Geological and Geophysical Surveys in the 1980s (McGimsey and others, 1988).
Alteration: Silicification.
Commodities (Major) - Au; (Minor) - Hg
Development Status: None
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
1 valid mineral.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
Other Databases
| Link to USGS - Alaska: | ID125 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell buried DomainDomain
- Farewell TerranePassive Margin
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