Unnamed Occurrence (ARDF - TK019; at the head of Devil Creek), Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - TK019; at the head of Devil Creek) | - not defined - |
| Valdez Creek Mining District | Mining District |
| Matanuska-Susitna Borough | Borough |
| Alaska | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
62° 57' 36'' North , 148° 49' 51'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Cantwell | 219 (2011) | 48.4km |
Location: This occurrence is above the head of Devil Creek, at an elevation of about 4,500 feet on the southwest flank of hill 5374 (which is locally called U Mountain). It is about 0.4 mile south of the center of sec. 35, T. 22 S., R. 7 W. of the Seward Meridian. The location is accurate to within 1/4 mile.
Geology: This occurrence is in altered felsic volcanic rocks. It includes gossan zones and chalky zones marked by iron- and manganese-oxide(?) banding (J. Schmidt, written commun., 2001). U.S. Geological Survey rock samples contain up to 2 parts per million gold, 228 parts per million zinc, 3 parts per million antimony, and 0.42 part per million mercury. (The 2-parts-per-million gold value is from an ICP analysis done by XRAL Laboratories; a fire assay of the same sample shows less than 0.005 part per million gold. The cause of the discrepancy is not known.)
Workings: Only surface sampling by U.S. Geological Survey (J. Schmidt, written commun., 2001).
Alteration: Argillic(?) alteration of felsic volcanic rocks. Iron- and manganese-oxide(?) alteration.
Commodities (Major) - Au; (Minor) - Hg, Sb, Zn
Development Status: None
Deposit Model: Hot spring Au-Ag? (Cox and Singer, 1986; model 25a?)
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | TK019 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Chulitna-Broad Pass DomainDomain
- Yukon-TananaVolcanic Arc
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
