Mount Dixon Prospect, Council Mining District, Nome Census Area, Alaska, USAi
Regional Level Types | |
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Mount Dixon Prospect | Prospect |
Council Mining District | Mining District |
Nome Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
64° 55' 4'' North , 164° 14' 45'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
199010
Long-form identifier:
mindat:1:2:199010:5
GUID (UUID V4):
6ce12df5-172e-4108-9742-7f12fec029f6
Location: This prospect is at an elevation of about 750 feet in the headwaters of Dixon Creek, 0.6 miles due south of Mount Dixon. This is locality 9 of Cobb (1972, MF 445; 1978, OF 78-181).
Geology: Malachite and azurite are present along the silicified contact between schist and marble at this and nearby localities (Smith, 1908; Gamble, 1988). The marble is Paleozoic and makes up the main part of the Mount Dixon upland but the underlying pelitic schist is possibly Cambrian or Precambrian in age (Till and others, 1986). This type of copper occurrence is present at several localities in the western Solomon quadrangle and has similarities to several in the Kougarok area of the northeastern Teller quadrangle. In theTeller quadrangle, the Ward mine (TE071) is an example of this type of copper mineral occurrence. The Ward mine has been described as a zone of silicification in marble above a thrust contact with underlying metapelitic schist (Sainsbury and others, 1969; Sainsbury, 1975, p. 90-94). The silica-rich rocks have been metamorphosed and commonly have a laminar fabric. Copper-bearing minerals, mostly malachite but also including azurite and in places chalcopyrite and possibly bornite, are disseminated in the silica-rich rocks. The minor sulfides tend to be along faint laminae and joints (Sainsbury and others, 1969, p. 22). Malachite and azurite also occur in small veins and veinlets in the silica-rich rocks. The summary characterization of this type of Seward Peninsula mineral deposit by Sainsbury (1975, p. 90-94) contains inconsistencies with some descriptions of these deposits. Their origin is uncertain and other possibilities should be considered. One possiblity is that the silica-rich rocks are quartzites and that there is a stratigraphic control to the Ward deposit and similar occurrences elsewhere on Seward Peininsula. Quarzite at the base of the regional carbonate assemblage is recognized elsewhere in the Kougarok Mountain area (Puchner, 1986, p. 1777).
Workings: No workings are known at this locality.
Age: Unknown; if stratigraphic controls are important then it is probably Paleozoic in age.
Alteration: Silica-rich rocks at or near the the base of Paleozoic marble overlying metapelitic rocks characterizes this type of copper occurrence.
Commodities (Major) - Cu
Development Status: None
Deposit Model: Copper-bearing mineralization in silica-rich zones at base of marble overlying m
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
3 valid minerals.
Detailed Mineral List:
ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 4 - Oxides and Hydroxides | |||
---|---|---|---|
ⓘ | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
H | ⓘ Malachite | Cu2(CO3)(OH)2 |
C | Carbon | |
C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
C | ⓘ Malachite | Cu2(CO3)(OH)2 |
O | Oxygen | |
O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
O | ⓘ Malachite | Cu2(CO3)(OH)2 |
O | ⓘ Quartz | SiO2 |
Si | Silicon | |
Si | ⓘ Quartz | SiO2 |
Cu | Copper | |
Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Other Databases
Link to USGS - Alaska: | SO068 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
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