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Hendrickson

Prospect in Alaska, United States with commodities Gold, Antimony
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Geologic information

Identification information

Deposit ID 10001998
MRDS ID A012842
Record type Site
Current site name Hendrickson
Alternate or previous names Kotovic and Stipek (Anvil Creek)
Related records 10183683

Geographic coordinates

Geographic coordinates: -165.39133, 64.5815 (WGS84)
Relative position This lode prospect is at an elevation of about 350 feet on the northwest side of Anvil Creek and 400 feet due east of the Snake River road. It is about 3,800 feet southeast of Bonanza Hill (elevation 640 feet). This prospect is included in locality 48 of Cobb (1972 [MF 463], 1978 [OFR 78-93]) and locality 5 of Hummel (1962 [MF 247]). The map location is in the NW1/4 section 36, T. 10 S., R. 34 W., Kateel River Meridian. Its accuracy us uncertain but it probably is located to within about 500 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Antimony Primary

Materials information

Materials Type of material
Arsenopyrite Ore
Gold Ore
Pyrite Ore
Stibnite 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
    Rock type Metamorphic Rock > Schist
    Rock unit name Nome Group
    Rock description Nome Group
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -165.39133, 64.5815
ListMap

Comments on the geologic information

  • Geologic Description = The Hendrickson prospect is within or near the Anvil Creek fault and related shear zones that are as much as 120 feet wide. The deposit consists of quartz-calcite veins that contain arsenopyrite, pyrite, and locally stibnite. The veins commonly cut schist or are localized in shear zones (Collier and others, 1908; Brooks, 1916; Mertie, 1918 [B 662-I, p. 425-449]; Cathcart, 1922). Pyrite and arsenopyrite also are disseminated in schist peripheral to veins and sulfide-rich zones as much as 15 feet wide are known. Vein samples from this prospect contained a little more than 0.5 ounce of gold per ton (Cathcart, 1922, p. 238). The Anvil Creek fault is a high-angle structure that juxtaposes different types of graphitic schist and dark graphitic quartzite in this area (Hummel, 1962 [MF 247]). Bedrock is mostly graphitic schist, probably of early Paleozoic protolith age (Hummel, 1962 [MF 247]; Sainsbury, Hummel, and Hudson, 1972 [OFR 72-326]; Till and Dumoulin, 1994; Bundtzen and others, 1994).
  • Age = Mid-Cretaceous or younger; vein cross cuts schist metamorphosed during the mid-Cretaceous.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Active?

Mining district

District name Nome

Comments on the workings information

  • Workings / Exploration = This prospect was explored by a 150-foot adit that was partially caved by 1916 (Cathcart, 1922). In 1916, the total length of underground workings on lode gold prospects in Anvil Creek valley was several hundred feet (Mertie, 1918).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012842
USGS Alaska Resource Data File ARDF NM225

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

    Brooks, A.H., 1916, Antimony deposits of Alaska: U.S. Geological Survey Bulletin 649, 67 p.

  • Deposit

    Cathcart, S.H., 1922, Metalliferous lodes in southern Seward Peninsula: U.S. Geological Survey Bulletin 722, p. 163-261.

  • Deposit

    Hummel, C.L., 1962, Preliminary geologic map of the Nome C-1 quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-247, 1 sheet, scale 1:63,360.

  • Deposit

    Sainsbury, C.L., Hummel, C.L., and Hudson, Travis, 1972, Reconnaissance geologic map of the Nome quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 72-326, 28 p., 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Nome quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-463, 2 sheets, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Nome quadrangle, Alaska: U.S. Geological Survey Open-File report 78-93, 213 p.

  • Deposit

    Till, A.B., and Dumoulin, J.A, 1994, Geology of Seward Peninsula and St. Lawrence Island, in Plafker, G., and Berg, H.C., eds., The Geology of Alaska: Geological Society of America, The Geology of North America, DNAG, v. G-1, p. 141-152.

  • Deposit

    Bundtzen, T.K., Reger, R.D., Laird, G.M., Pinney, D.S., Clautice, K.H., Liss, S.A., and Cruse, G.R., 1994, Progress report on the geology and mineral resources of the Nome mining district: Alaska Division of Geological and Geophysical Surveys, Public Data-File 94-39, 21 p., 2 sheets, scale 1:63,360.

Comments on the references

  • Primary Reference = Cathcart, 1922

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a).

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUL-00 Hawley, C.C. Hawley Resource Group
Reporter 10-JUL-00 Travis L. Hudson Hawley Resource Group