Dahl Creek Head; Asbestos Mountain; Ing-Ink Mine, Ambler Mining District, Northwest Arctic Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Dahl Creek Head; Asbestos Mountain; Ing-Ink Mine | Mine |
| Ambler Mining District | Mining District |
| Northwest Arctic Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
67° 0' 32'' North , 156° 49' 29'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: Location is just northwest of Asbestos Mountain in T. 19 N., R. 9 E., Kateel River Meridian. Shown as locality 29 in Mayfield and Grybeck (1978). Location accurate to within 600 ft. (200 m).
Geology: 50 ft. (17 m) wide shear zone trending northeast and containing veins of slip-fiber tremolite, 6 in. to 2.5 ft. (12 cm to 0.66 m) thick; fibers up to 18-20 in. (36-40 cm) long, weak in tenacity, but relatively free of impurities. Veins plus residual fibers form lenticular ore bodies. Also present in area of mine are: 1) 0.25-4 in. (0.5-8 cm) seams of slip-fiber chrysotile and small veinlets of cross-fiber chrysotile; 2) small deposits of talc, soapstone and nephrite, 3) 6 in. (12 cm) wide veins of quartz containing crystals possibly of optical quality. Deposit is in serpentinized basic intrusive (peridotite?) in mica schist; abundant tremolite and chrysotile float (Heide and others, 1949, p.11-13).
Workings: Surface and underground. Explored by several trenches and a 229 ft. (76 m) adit.
Production: 33 tons of tremolite and 0.9 tons of serpentine shipped during WW ll. Small amount of optical quartz crystals shipped in 1943 (Heide and others, 1949, p. 11-13).
Commodities (Major) - Asbestos; (Minor) - Jade, talc
Development Status: Yes; small
Deposit Model: Serpentine-hosted asbestos
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
4 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Chrysotile Formula: Mg3(Si2O5)(OH)4 |
| ⓘ 'Ferro-actinolite-Tremolite Series' |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 |
| ⓘ Tremolite Formula: ◻Ca2Mg5(Si8O22)(OH)2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Chrysotile | 9.00. | Mg3(Si2O5)(OH)4 |
| ⓘ | Tremolite | 9.DE.10 | ◻Ca2Mg5(Si8O22)(OH)2 |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| Unclassified | |||
| ⓘ | 'Ferro-actinolite-Tremolite Series' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| H | ⓘ Ferro-actinolite-Tremolite Series | |
| O | Oxygen | |
| O | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| O | ⓘ Ferro-actinolite-Tremolite Series | |
| Mg | Magnesium | |
| Mg | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Mg | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Mg | ⓘ Ferro-actinolite-Tremolite Series | |
| Si | Silicon | |
| Si | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Si | ⓘ Ferro-actinolite-Tremolite Series | |
| Ca | Calcium | |
| Ca | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Ca | ⓘ Ferro-actinolite-Tremolite Series | |
| Fe | Iron | |
| Fe | ⓘ Ferro-actinolite-Tremolite Series | |
Other Databases
| Link to USGS - Alaska: | AR016 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Brooks RangeMountain Range
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Angayucham TerraneAccretionary Complex
- Brooks Range DomainVolcanic Arc
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