| Quadrangle map, 1:250,000-scale | BH |
|---|---|
| Quadrangle map, 1:63,360-scale | D-2 |
| Latitude | 60.93 |
| Longitude | -159.93 |
| Nearby scientific data | Find additional scientific data near this location |
| Location and accuracy | This occurrence is on the southwest side of Slate Creek, about 4 miles upstream of the confluence of Slate Creek with the Tuluksak River. The map site is in the SW1/4 of sec. 21, T. 10 N., R. 60 W., of the Seward Meridian. It is locality 5 of Frost (1990). |
Geologic descriptionFrost (1990) reported that discontinuous lenses of silica-carbonate rock are present along the Golden Gate fault near where it crosses Slate Creek, an east tributary to the Tuluksak River (Box and others, 1993). Quartz and several generations of carbonate veins, in many cases enclosing relict fragments of serpentinite, make up the silica-carbonate rock. Samples from this locality (Frost, 1990, table 1, locality 5) contain 1.9 to more than 36 ppm Hg. | |
| Geologic map unit | (-159.932290023361, 60.9292669098557) |
|---|---|
| Mineral deposit model | Silica-carbonate Hg (Cox and Singer, 1986; model 27c). |
| Mineral deposit model number | 27c |
| Age of mineralization | Not known. Postdates or accompanies deformation of the mid-Cretaceous Kuskokwim Group along the Golden Gate fault. |
| Alteration of deposit | Quartz and carbonate replacement of serpentinite. |
| Workings or exploration | Reconnaissance surface observation and geochemical sampling has occurred at this site. |
|---|---|
| Indication of production | None |
| MRDS Number | 10307256 |
|---|---|
| Reporters | Travis L. Hudson |
| Last report date | 3/24/2001 |