Konechney Prospect Prospect (Mission Creek), Aniak Mining District, Bethel Census Area, Alaska, USAi
Regional Level Types | |
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Konechney Prospect Prospect (Mission Creek) | Prospect |
Aniak Mining District | Mining District |
Bethel Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
61° 39' 3'' North , 159° 6' 43'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Chuathbaluk | 125 (2017) | 11.2km |
Aniak | 528 (2017) | 23.1km |
Mindat Locality ID:
198401
Long-form identifier:
mindat:1:2:198401:2
GUID (UUID V4):
d78949b1-4f43-4395-8fdf-86a3d798f207
Location: This prospect is in the Russian Mountains on the ridge at the head of Mission Creek, 1,000 feet northeast of peak 2710. The map site is in the NW1/4 sec. 17, T. 18 N., R. 54 W., of the Seward Meridian. This is locality 5 of Hoare and Cobb (1972, 1977) and sample locality 15 of Bundtzen and Laird (1991).
Geology: This prospect, discovered and first staked in 1921, is named after one of its discovers, Joseph Konechney. Konechney persistently explored the prospect with trenches and two levels of underground workings for many years (Hoare and Coonrad, 1977). The deposits are quartz-sulfide-tourmaline greisen veins developed near the contact between syenite and an axinite-bearing andesite porphyry dike. The mineralized zone, which has been traced northwest for at least 470 feet, contains quartz tourmaline, arsenopyrite, chalcopyrite, pyrite, metazeunerite, gold, scheelite, and cassiterite. Late-forming minerals include chalcocite, bornite, stibnite (?), stephanite, covellite, cuprite, azurite, malachite, goethite, and chrysocolla (Bundtzen and Laird, 1991). Twelve channel samples collected by Bundtzen and Laird (1991) combined with five collected by Holzheimer (1926) average 4.44 ppm gold, 1.64 percent copper, 1.14 percent arsenic, and 0.24 percent antimony. The samples also contain anomalous levels of tin (to 200 ppm), silver (to 317 ppm), and uranium (to 106 ppm). The only sample analyzed for bismuth by Bundtzen and Laird (1991) contained 112 ppm of this element. Wedow and others (1953) and West (1954) examined the prospect for radioactive minerals; the highest eU content they observed was 0.006 percent. Assuming dimensions, in feet, of 3.4 x 400 x 470, Bundtzen and Laird (1991) estimated a resource of 37,600 tons of material with the stated average grades. The country rocks are part of the Upper Cretaceous intrusive complex of the Russian Mountains.
Workings: Surface trenches and two adits (now caved) with a total of 900 feet of underground workings have been completed. The main adit was 800 feet long. Maps of the underground workings were made by Holzheimer (1926) and are described in Bundtzen and Laird (1991).
Age: Late Cretaceous or Tertiary. Veins crosscut part of the intrusive complex of the Russian Mountains. Quartz monzonite from this complex has yielded a K/Ar age of 70.3 +/- 2.1 Ma (Bundtzen and Laird, 1991).
Alteration: Silicification and tourmalinization.
Reserves: Assuming dimensions, in feet, of 3.4 x 400 x 470, Bundtzen and Laird (1991) estimate a resource of 37,600 tons of material averaging 4.44 ppm gold, 1.64 percent copper, 1.14 percent aresenic, and 0.24 percent antimony, along with as much as 200 ppm tin, 317 ppm silver, and 106 ppm uranium.
Commodities (Major) - Ag, Au, Cu; (Minor) - Pb, Sb?, Sn, U?, W
Development Status: None
Deposit Model: Polymetallic veins (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
19 valid minerals.
Detailed Mineral List:
β Arsenopyrite Formula: FeAsS |
β Azurite Formula: Cu3(CO3)2(OH)2 |
β Bornite Formula: Cu5FeS4 |
β Cassiterite Formula: SnO2 |
β Chalcocite Formula: Cu2S |
β Chalcopyrite Formula: CuFeS2 |
β Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
β Covellite Formula: CuS |
β Cuprite Formula: Cu2O |
β Galena Formula: PbS |
β Goethite Formula: Ξ±-Fe3+O(OH) |
β Gold Formula: Au |
β Malachite Formula: Cu2(CO3)(OH)2 |
β Metazeunerite Formula: Cu(UO2)2(AsO4)2 · 8H2O |
β Pyrite Formula: FeS2 |
β Quartz Formula: SiO2 |
β Scheelite Formula: Ca(WO4) |
β Stephanite Formula: Ag5SbS4 |
β Stibnite Formula: Sb2S3 |
β 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Gold | 1.AA.05 | Au |
Group 2 - Sulphides and Sulfosalts | |||
β | Chalcocite | 2.BA.05 | Cu2S |
β | Bornite | 2.BA.15 | Cu5FeS4 |
β | Covellite | 2.CA.05a | CuS |
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Galena | 2.CD.10 | PbS |
β | Stibnite | 2.DB.05 | Sb2S3 |
β | Pyrite | 2.EB.05a | FeS2 |
β | Arsenopyrite | 2.EB.20 | FeAsS |
β | Stephanite | 2.GB.10 | Ag5SbS4 |
Group 4 - Oxides and Hydroxides | |||
β | Goethite | 4.00. | Ξ±-Fe3+O(OH) |
β | Cuprite | 4.AA.10 | Cu2O |
β | Quartz | 4.DA.05 | SiO2 |
β | Cassiterite | 4.DB.05 | SnO2 |
Group 5 - Nitrates and Carbonates | |||
β | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
β | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
β | Scheelite | 7.GA.05 | Ca(WO4) |
Group 8 - Phosphates, Arsenates and Vanadates | |||
β | Metazeunerite | 8.EB.10 | Cu(UO2)2(AsO4)2 Β· 8H2O |
Group 9 - Silicates | |||
β | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 Β· nH2O, x < 1 |
Unclassified | |||
β | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Azurite | Cu3(CO3)2(OH)2 |
H | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
H | β Goethite | Ξ±-Fe3+O(OH) |
H | β Malachite | Cu2(CO3)(OH)2 |
H | β Metazeunerite | Cu(UO2)2(AsO4)2 · 8H2O |
B | Boron | |
B | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
C | Carbon | |
C | β Azurite | Cu3(CO3)2(OH)2 |
C | β Malachite | Cu2(CO3)(OH)2 |
O | Oxygen | |
O | β Azurite | Cu3(CO3)2(OH)2 |
O | β Cassiterite | SnO2 |
O | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
O | β Cuprite | Cu2O |
O | β Goethite | Ξ±-Fe3+O(OH) |
O | β Malachite | Cu2(CO3)(OH)2 |
O | β Metazeunerite | Cu(UO2)2(AsO4)2 · 8H2O |
O | β Quartz | SiO2 |
O | β Scheelite | Ca(WO4) |
O | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
Al | Aluminium | |
Al | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Si | Silicon | |
Si | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Si | β Quartz | SiO2 |
S | Sulfur | |
S | β Arsenopyrite | FeAsS |
S | β Bornite | Cu5FeS4 |
S | β Chalcopyrite | CuFeS2 |
S | β Chalcocite | Cu2S |
S | β Covellite | CuS |
S | β Galena | PbS |
S | β Pyrite | FeS2 |
S | β Stephanite | Ag5SbS4 |
S | β Stibnite | Sb2S3 |
Ca | Calcium | |
Ca | β Scheelite | Ca(WO4) |
Fe | Iron | |
Fe | β Arsenopyrite | FeAsS |
Fe | β Bornite | Cu5FeS4 |
Fe | β Chalcopyrite | CuFeS2 |
Fe | β Goethite | Ξ±-Fe3+O(OH) |
Fe | β Pyrite | FeS2 |
Cu | Copper | |
Cu | β Azurite | Cu3(CO3)2(OH)2 |
Cu | β Bornite | Cu5FeS4 |
Cu | β Chalcopyrite | CuFeS2 |
Cu | β Chalcocite | Cu2S |
Cu | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Cu | β Covellite | CuS |
Cu | β Cuprite | Cu2O |
Cu | β Malachite | Cu2(CO3)(OH)2 |
Cu | β Metazeunerite | Cu(UO2)2(AsO4)2 · 8H2O |
As | Arsenic | |
As | β Arsenopyrite | FeAsS |
As | β Metazeunerite | Cu(UO2)2(AsO4)2 · 8H2O |
Ag | Silver | |
Ag | β Stephanite | Ag5SbS4 |
Sn | Tin | |
Sn | β Cassiterite | SnO2 |
Sb | Antimony | |
Sb | β Stephanite | Ag5SbS4 |
Sb | β Stibnite | Sb2S3 |
W | Tungsten | |
W | β Scheelite | Ca(WO4) |
Au | Gold | |
Au | β Gold | Au |
Pb | Lead | |
Pb | β Galena | PbS |
U | Uranium | |
U | β Metazeunerite | Cu(UO2)2(AsO4)2 · 8H2O |
Other Databases
Link to USGS - Alaska: | RM019 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Farewell buried DomainDomain
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