Rapid River bend Occurrence, Sheenjek Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Rapid River bend Occurrence | Occurrence |
| Sheenjek Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
67° 34' 47'' North , 141° 16' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
This area is just south and east of > 38.5 square mi (100 square km) of creek drainages containing variable to abundant cassiterite, monazite, ilmenite and allanite, and variable scheelite, powellite, molybdenite and chromite in sluice samples. Also, see MAS/MILS Sequence # 0020330009 (USBM, 1995)
Location: Location plotted is locality 4 of Barker (1981, p. 25). Anomalous area is approximately 1 mi (1.6 km) N-S x 2 mi (3.2 km) E-W and centered on this ridge. Does not include locations called VABM Orphan, VABM Orphan, or placer localities mentioned in Barker (1981). Located to within 1 mi (1.6 km).
Geology: Rubble of several phases of Old Crow batholith includes 2-mica granite, aplites and granodiorite. Area has hematite and secondary uranium minerals in quartz vein and brecia float, a radon gas anomaly, and associated rock and soil anomalies.
Workings: Sample of quartz vein float contain up to 2.8 ppm Ag, >2000 ppm B, 50 ppm Be, 70 ppm Bi, 280 ppm Cu, 70 ppm Mo, 3300 ppm Pb, 300 ppm Sn, 1600 ppm U and 1500 ppm Zn. Soil samples contain up to 3100 ppm Pb, 3100 ppm Zn and 120 ppm U (Barker, 1981, p.90-95).
Alteration: Muscovite/sericite and tourmaline are common in granodiorite/granite and aplite. Some chloritization of biotite.
Commodities (Major) - Mo, Pb, Sn, U; (Minor) - Ag, B, Be, Bi, Cu, Zn
Development Status: No
Deposit Model: Lode; felsic plutonic-associated Sn, Mo, U, +W and base metals, possible veins,
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:
| ⓘ Arsenuranylite Formula: Ca(UO2)4(AsO4)2(OH)4 · 6H2O |
| ⓘ Goethite Formula: Fe3+O(OH) |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Metatorbernite Formula: Cu(UO2)2(PO4)2 · 8H2O |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Uranophane Formula: Ca(UO2)2(SiO3OH)2 · 5H2O |
| ⓘ Xenotime-(Y) Formula: Y(PO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Xenotime-(Y) | 8.AD.35 | Y(PO4) |
| ⓘ | Metatorbernite | 8.EB.10 | Cu(UO2)2(PO4)2 · 8H2O |
| ⓘ | Arsenuranylite | 8.EC.10 | Ca(UO2)4(AsO4)2(OH)4 · 6H2O |
| Group 9 - Silicates | |||
| ⓘ | Uranophane | 9.AK.15 | Ca(UO2)2(SiO3OH)2 · 5H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Arsenuranylite | Ca(UO2)4(AsO4)2(OH)4 · 6H2O |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O |
| H | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| O | Oxygen | |
| O | ⓘ Arsenuranylite | Ca(UO2)4(AsO4)2(OH)4 · 6H2O |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| O | ⓘ Xenotime-(Y) | Y(PO4) |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| P | Phosphorus | |
| P | ⓘ Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O |
| P | ⓘ Xenotime-(Y) | Y(PO4) |
| Ca | Calcium | |
| Ca | ⓘ Arsenuranylite | Ca(UO2)4(AsO4)2(OH)4 · 6H2O |
| Ca | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| Fe | Iron | |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Cu | Copper | |
| Cu | ⓘ Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O |
| As | Arsenic | |
| As | ⓘ Arsenuranylite | Ca(UO2)4(AsO4)2(OH)4 · 6H2O |
| Y | Yttrium | |
| Y | ⓘ Xenotime-(Y) | Y(PO4) |
| U | Uranium | |
| U | ⓘ Arsenuranylite | Ca(UO2)4(AsO4)2(OH)4 · 6H2O |
| U | ⓘ Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O |
| U | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
Other Databases
| Link to USGS - Alaska: | CO008 |
|---|
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