Unnamed Occurrence (ARDF - MF084; west-northwest of Mt. Dagelet), Glacier Bay Mining District, Juneau Mining District, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - MF084; west-northwest of Mt. Dagelet) | - not defined - |
| Glacier Bay Mining District | - not defined - |
| Juneau Mining District | Mining District |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
58° 36' 18'' North , 137° 16' 1'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
201136
Long-form identifier:
mindat:1:2:201136:6
GUID (UUID V4):
0e92ca4e-e99c-46fa-b5db-a0d480328fbe
The site is in Glacier Bay National Park and Preserve.
Location: This occurrence is at an elevation of about 5600 feet on the southeast flank of Hill 7661 about 3.4 miles west-northwest of Mt. Dagelet (Rossman, B 1121-F, photograph fig. 17). Rossman's sample No. A37 (plate 1) is about 0.2 mile southeast. The site is also about 1.45 miles southeast of Peak 6902, which Rossman called Mt. Lookout. The location is accurate within about 0.1 mile. The location is approximately the same as number 10 of Kimball and others (1978).
Geology: This occurrence consists of ilmenite segregations in the Crillon-La Perouse layered mafic-ultramafic intrusion, along its southwestern contact zone (Brew and others, 1978). The adjacent metamorphic rocks are hornblende and biotite schist probably derived from a Mesozoic protolith. The intrusion is of Tertiary age. An ilmenite magmatic segregation deposit exists at the site. It continues along strike of the layered intrusion for several hundred feet but could not be traced farther because of extremely steep topography. At the site, the intrusion is estimated to contain from 10 to 25 percent ilmenite (Rossman, 1963, 1121-F). A sample that contained 25 percent ilmenite contained 2 percent graphite by weight.
Workings: There are no workings. Sample 53ARm a37 contained 25 percent ilmenite (Rossman, 1963, p. F43).
Age: Tertiary.
Reserves: An inferred resource could be calculated based on data given by Rossman.
Commodities (Major) - Ti
Development Status: No
Deposit Model: Possibly Bushveld Fe-Ti-V (Cox and Singer, 1986; model 3). Magmatic segregatio
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
1 valid mineral.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | Iron | |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
Other Databases
| Link to USGS - Alaska: | MF084 |
|---|
Other Regions, Features and Areas containing this locality
North America
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Chugach DomainDomain
USA
- Alaska
- Juneau Mining DistrictMining District
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References
