Geologic information
Identification information
Deposit ID |
10003475 |
MRDS ID |
A106233 |
Record type |
Site |
Current site name |
Giant Gold Mining Company |
Geographic coordinates
Geographic coordinates:
|
-149.25269, 61.82956 (WGS84)
|
Relative position |
Approximately 2,000 feet north-northwest of the end of Fern Mine Road. This is locality 20 from Figure 9 (Cohen, 1982). Accurate within 1,000 feet. |
(click for info) |
Geographic areas
Country |
State |
United States |
Alaska |
Commodities
Commodity |
Importance |
Gold |
Primary |
Materials information
Materials |
Type of material |
Gold |
Ore |
Quartz |
Gangue |
Mineral occurrence model information
Model code |
273 |
USGS model code |
36a |
Deposit model name |
Low-sulfide Au-quartz vein |
Mark3 model number |
27 |
Host and associated rocks
Host or associated |
Host |
Stratigraphic age (youngest) |
Late Cretaceous |
|
Comments on the geologic information
- Geologic Description = Details about the prospect are unavailable. Most likely, a gold-bearing quartz vein(s) cuts the Late Cretaceous Willow Creek Pluton. The Willow Creek Pluton is a zoned pluton. The outer part consists of hornblende quartz diorite and lesser hornblende tonalite; the core consists of hornblende-biotite granodiorite, and lesser hornblende-biotite quartz monzodiorite and biotite quartz monzonite.
- Age = Late Cretaceous or younger; the host of mineralization is the Late Cretaceous Willow Creek Pluton.
- Age = Host rock is Late Cretaceous.