Unnamed Occurrence (ARDF - IB002; beach between Yahtse River and Yana Stream), Yakataga Mining District, Valdez-Cordova Census Area, Alaska, USAi
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
59° 49' 48'' North , 141° 12' 53'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is on the present Gulf of Alaska shoreline between the mouths of the Yana Stream and Yahtse River. It is one-half mile southeast of USGS benchmark Grit and 1.75 miles northwest of USGS benchmark Yahtse. The occurrence, in the northeast corner of section 24, T. 24 S., R. 24 E., of the Copper River Meridian, is locality 7 of Cobb (1972 [MF 411]; 1979 [OF 79-1246]).
Geology: Thomas and Berryhill (1962) collected an auger sample of beach gravel at this location that contained 0.7 pound of titanium oxide per cubic yard in the magnetic fraction and 0.6 pound of iron and 4.7 pounds of titanium oxide per cubic yard in the non-magnetic fraction. It also contained a trace of gold. Beach sands along this segment of the Gulf of Alaska shoreline contain trace amounts of ilmenite, magnetite, rutile, pyrite, garnet, sphene, and zircon (Thomas and Berryhill, 1962).
Workings: Reconnaissance characterization of beach samples has been completed in this area (Thomas and Berryhill, 1962).
Age: Holocene.
Commodities (Major) - Au, Ti
Development Status: None
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a - beach)
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
7 valid minerals.
Detailed Mineral List:
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Rutile Formula: TiO2 |
| ⓘ Titanite Formula: CaTi(SiO4)O |
| ⓘ Zircon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| Unclassified | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Titanite | CaTi(SiO4)O |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Si | Silicon | |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Titanite | CaTi(SiO4)O |
| Fe | Iron | |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | IB002 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America Plate
- Yakutat-Malaspina DomainDomain
- YakutatOphiolite Complex
Pacific OceanOcean
Pacific PlateTectonic Plate
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.
