1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Dorothy Creek

Producer in Alaska, United States with commodities Gold, Antimony, Tungsten
Map
XML
JSON
KML
B

Geologic information

Identification information

Deposit ID 10002061
MRDS ID A012912
Record type Site
Current site name Dorothy Creek
Related records 10185246

Geographic coordinates

Geographic coordinates: -165.23802, 64.8229 (WGS84)
Relative position Dorothy Creek is a west tributary to upper Nome River. The mouth of Dorothy Creek is about 1.4 miles downstream from the mouth of Divide Creek, another west tributary to Nome River. Dorothy Creek may have been placer mined for gold over most of its lower 1.3 miles. This is locality 105 of Cobb (1972 [MF 463], 1978 [OFR 78-93]).
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Antimony Secondary
Tungsten Secondary

Materials information

Materials Type of material
Gold Ore
Scheelite Ore
Stibnite Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
BC deposit profile C01. C02
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -165.23802, 64.8229
ListMap

Comments on the geologic information

  • Geologic Description = Dorothy Creek was placer mined for gold as early as 1900, and by 1903 about 44,000 dollars or 2,125 ounces of gold had been produced (Collier and others, 1908). Some mining took place as recently as 1940 (Smith, 1942). The placer concentrate contained bladed stibnite crystals and minor scheelite (Coats, 1944; Anderson, 1947).? Bedrock in the Dorothy Creek drainage is mainly metasedimentary schist that lies structurally above a regionally extensive marble unit (Hummel, 1962 [MF 248]). Small orthogneiss bodies, greenstone bodies, and numerous quartz veins are present in the schist (Collier and others, 1908; Hummel, 1962 [MF 248]). The Wyoming prospect (NM110) is apparently an arsenopyrite- and (or) pyrite-bearing vein exposed along Dorothy Creek, and antimony occurrences (NM068, NM069) and the Bulk Gold prospects (NM071, NM072) occur on the ridge along the southwest headwaters of Dorothy Creek.
  • Age = Quaternary.

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic

Comments on exploration

  • Status = Active?

Mining district

District name Nome

Comments on the production information

  • Production Notes = The produced gold reportedly assayed 14 to 15 dollars per ounce (Collier and others, 1908). The early mining was said to have been expensive and little profit was made (Moffit, 1913).

Comments on the workings information

  • Workings / Exploration = Dorothy Creek was placer mined as early as 1900 and by 1903 about 44,000 dollars or 2,125 ounces of gold had been produced (Collier and others, 1908). Some mining took place as recently as 1940 (Smith,1942).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012912
USGS Alaska Resource Data File ARDF NM097

Bibliographic references

  • Deposit

    Collier, A. J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.

  • Deposit

    Moffit, F.H., 1913, Geology of the Nome and Grand Central quadrangles, Alaska: U.S. Geological Survey Bulletin 533, 140 p.

  • Deposit

    Anderson, Eskil, 1947, Mineral occurrences other than gold deposits in northwestern Alaska: Alaska Territorial Division of Mines Pamphlet 5-R, 48 p.

  • Deposit

    Hummel, C.L., 1962, Preliminary geologic map of the Nome D-1 quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-248, 1 sheet, scale 1:63,360.

  • Deposit

    Coats, R.R., 1944, Lode scheelite occurrences of the Nome area: U.S. Geological Survey Open-File Report 17, 6 p.

Comments on the references

  • Primary Reference = Collier and others, 1908

General comments

Subject category Comment text
Deposit Model Name = Placer Au (Cox and Singer, 1986; model 39a).

Reporter information

Type Date Name Affiliation Comment
Reporter 22-OCT-99 Hawley, C.C. Hawley Resource Group
Reporter 22-OCT-99 Travis L. Hudson Hawley Resource Group