Chicago Kid & New Era prospects, Dolomi Mountain, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
55° 8' 48'' North , 132° 3' 17'' West
Latitude & Longitude (decimal):
Type:
Group of Prospects
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Metlakatla | 1,405 (2017) | 30.5km |
| Ketchikan | 8,197 (2017) | 33.7km |
| Saxman | 417 (2017) | 34.8km |
Location: The Chicago Kid and New Era prospects have rarely been described since the early 1900's. Either one may coincide with the 'James Lake West' prospect described by Maas and others (1992, 1995). The site is located 1.2 km (4,000 feet) ESE of Dolomi Mountain (coordinates of record), just W of James Lake, about 0.3 mile southeast of the center of section 31, T77S, R89 E.
Geology: Chapin (1916) describes the Chicago Kid prospect as 5-foot-wide quartz vein exposed in a shallow pit in brecciated limestone. The vein strikes N60E and dips 70SE and contains minor pyrite and tetrahedrite. The New Era prospect, which was explored by an adit, is a 30-foot quartz vein with disseminated pyrite; it strikes N30W and dips vertically. Maas and others (1992, 1995) described workings in this vicinity under the name 'James Lake West'; the workings consist of a 10-meter adit, trenches, and cuts. A quartz vein 12 feet thick can be traced for about 600 feet. Samples contained 8.1 to 54 parts per billion gold. The rocks in the Dolomi area are part of the Wales Group of Late Proterozoic and Cambrian age (Herreid, 1967). They are folded into a large dome centered over the eastern third of Paul Lake, and consist of several marble layers 200 to 1300 feet thick, interbedded with calcareous chlorite schist and marble.
Workings: Scattered workings include one or more short adits, trenches, and open cuts.
Age: The veins are younger than the Late Proterozoic or Cambrian host rocks.
Production: Probably none.
Reserves: None.
Commodities (Major) - Au; (Minor) - Ag, Cu, Sb
Development Status: None
Deposit Model: Low-sulfide gold-quartz vein (Cox and Singer, 1986; model 36a).
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
2 valid minerals.
Detailed Mineral List:
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Sb | Antimony | |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Other Databases
| Link to USGS - Alaska: | CR202 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
