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  3. Mineral Resource Data System (MRDS)

Unnamed (east of Sunrise Creek)

Occurrence in Alaska, United States with commodities Mercury, Iron
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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. Reporter information

Geologic information

Identification information

Deposit ID 10001657
MRDS ID A012434
Record type Site
Current site name Unnamed (east of Sunrise Creek)

Geographic coordinates

Geographic coordinates: -155.05191, 63.8506 (WGS84)
Relative position Occurrence is situated on a prominent, isolated knob about one half mile (0.8 km) east of Sunrise Creek at an elevation of 1,100 feet (335 m) in Section 12, T. 19 S., R. 19 E., of the Kateel River Meridian.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Medfra D-5(quadrangle 1:63,360 scale)

Medfra N(quadrangle 1:100,000 scale)

Medfra(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Mercury Primary
Iron Secondary

Materials information

Materials Type of material
Cinnabar Ore
Hematite Ore

Alteration

  • (Local) Chalceodonic.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -155.05191, 63.8506
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Hematite occurs as dark red and black veinlets and as fine botryoidal masses in cavities in brecciated and hydrothermally altered, porphyritic rhyolite, in part of a unit described as rhyolite domes, tuffs and breccia by Patton and others, 1980). Possible dark, oxidized cinnabar also occurs in the veinlets (Patton and Moll, 1983). Three samples contained 0.95 to 3.70 ppm mercury (Patton and Moll, 1983).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name McGrath

Comments on the workings information

  • Workings / Exploration = Three samples contained 0.95 to 3.70 ppm mercury (Patton and Moll, 1983).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = King and others, 1980

Reporter information

Type Date Name Affiliation Comment
Reporter 07-JUN-98 Bundtzen, T.K. Pacific Rim Geological Consulting

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.