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Hudson

Past Producer in Alaska, United States with commodities Mercury, Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10002913
MRDS ID A015403
Record type Site
Current site name Hudson
Alternate or previous names Sunshine No. 2

Geographic coordinates

Geographic coordinates: -148.50693, 65.50273 (WGS84)
Relative position Cobb (1972, MF-413), loc. 4; SE1/4, sec. 23, T. 8 N., R. 5 W., of the Fairbanks Meridian. The mine is along Olive Creek, near the intersection with the Elliot Highway. Accuracy is within 1,000 feet. Olive Creek is a small stream flowing about due south into the North Fork of the Tolovana River, about two miles south of the town of Livengood. The Hudson tunnel is at the head of the west fork of Olive Creek.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Livengood C-4(quadrangle 1:63,360 scale)

Livengood N(quadrangle 1:100,000 scale)

Livengood C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

BLM(Federal land areas administered by BLM)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Mercury Primary
Gold Secondary

Materials information

Materials Type of material
Cinnabar Ore
Gold Ore

Alteration

  • (Local) The decomposed quartz feldspar porphyry contains crushed white feldspar phenocrysts in a light gray to white ground mass of quartz, talc and clay minerals. Many iron-stained streaks in the porphyry are caused by oxidation of arsenopyrite-bearing quartz veins, which also carry some gold (Joesting, 1942; ATDM Pamph. 1, p. 2).

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite

Nearby scientific data

(1) -148.50693, 65.50273
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = In 1917, Hudson found evenly distributed small specks and grains of cinnabar in highly altered granitic rock at what is now commonly called the Hudson prospect (Malone, 1962). Some of this material was reported to have run 20 to 30 pounds of mercury per ton (Malone, 1962). Mertie (1918, p. 274) reported that a small landslide exposed much-weathered granitic rock from which cinnabar was panned. In the main tunnel of the Hudson mine, the highly altered granitic rock is heavily impregnated with cinnabar (Reed, 1931). The cinnabar is evenly disseminated all through the rock in small red specks and grains. Reed (1931) reported that the rock was so altered that it resembled talc or soft, white, impure sandstone. The alteration and mineralization continues back in the Hudson mine tunnel as far as the winze, and from there on in, the cinnabar becomes rapidly leaner and the country rock becomes harder and darker (Reed, 1931, p. 3). The decomposed quartz feldspar porphyry contains crushed white feldspar phenocrysts in a light gray to white ground mass of quartz, talc and clay minerals. Many iron-stained streaks in the porphyry are caused by oxidation of arsenopyrite-bearing quartz veins, which also carry some gold (Joesting, 1942; ATDM Pamph. 1, p. 2).? the Sunshine no. 2 prospect is a few hundred feet above the Hudson prospect. It consists of a northwest-trending, crumbly, auriferous dike with internal limonite veinlets in contact with altered argillite (Foster, 1968). Foster (1968, p.2) reported that soil samples contain anomalous concentrations of arsenic silver, bismuth, cobalt, copper, zinc, tin, molybdenum and tungsten.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Tolovana

Comments on the production information

  • Production Notes = The owner attempted to mill the ore as if it were gold-bearing quartz and thus lost much of the cinnabar. The ore was ground and fed into sluice boxes in an attempt to recover the cinnabar. Much of the cinnabar was probably so finely ground that the sluice boxes were ineffective in trapping the ore (Reed, 1931, p. 3).

Comments on the workings information

  • Workings / Exploration = Explored by about 270 feet of adits and tunnels (Malone, 1962).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Foster, 1968

General comments

Subject category Comment text
Deposit Model Name = Disseminated cinnabar associated with a granitic intrusive.

Reporter information

Type Date Name Affiliation Comment
Reporter 04-MAY-1999 C.J. Freeman Avalon Development Corporation
Reporter 04-MAY-1999 J.R. Guidetti Schaefer Avalon Development Corporation

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.