Unnamed (in upper Cold Creek)

Occurrence, Probably inactive

Commodities and mineralogy

Main commodities Au
Other commodities Sb
Ore minerals gold; stibnite
Gangue minerals calcite; quartz

Geographic location

Quadrangle map, 1:250,000-scale NM
Quadrangle map, 1:63,360-scale D-1
Latitude 64.7617
Longitude -165.3491
Nearby scientific data Find additional scientific data near this location
Location and accuracy An unnamed antimony prospect is in Cold Creek about one-half mile north of the east-west trail that connects the Steep Creek and Manila Creek areas. It is 1.2 miles southeast of Mount Distin. This location was called the Breen (West) mine by Hummel (locality 2, 1962 [MF 248]). This is locality 26 of Cobb (1972 [MF 463], 1978 [OFR 78-93]) who, following Hummel (locality 2, 1962 [MF 248]), also identified it as Breen (West). The location is uncertain, but probably within about 1,000 feet of the coordinates.

Geologic setting

Geologic description

This locality was identified as an antimony occurrence by Hummel (1962 [MF 248]). The vein geology and production formerly ascribed to this occurrence by Cobb (locality 26; 1972 [MF463]; 1978 [OFR 78-93]) probably belong to the Bison Lode patented by Henry P. Breen, which is about a half mile southeast of this occurrence (Breen West, NM087). Stibnite is, however, assumed to be present at this location, probably in quartz veins and with some gold values. This occurrence may be similar to quartz-stibnite veins at the Breen West (NM087) and Sliscovich (NM086) mines to the east. The stibnite occurrence is in a marble-rich metasedimentary sequence (Hummel, 1962 [MF 248]; Bundtzen and others, 1994).
Geologic map unit (-165.351720870762, 64.7609395463048)
Mineral deposit model Simple Sb deposits and low sulfide, Au-quartz vein? (Cox and Singer, 1986; models 27d and 36a).
Mineral deposit model number 27d?, 36a?
Age of mineralization Mid-Cretaceous?; may be same age as some lode gold deposits of Seward Peninsula.

Production and reserves

Workings or exploration Some antimony claims in the vicinity, including the Hed & [and] Strand (NM070) and the Sliscovich (NM086), were located prior to and during World War I, when the region was actively prospected for antimony.
Indication of production None

References