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Cornwallis Peninsula Barite-Witherite Prospects

Prospect in Alaska, United States with commodities Barium-Barite, Strontium
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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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10002451
MRDS ID A013378
Record type Site
Current site name Cornwallis Peninsula Barite-Witherite Prospects
Alternate or previous names Cornwallis Pt.
Related records 10160844

Geographic coordinates

Geographic coordinates: -134.20193, 56.92806 (WGS84)
Elevation 30
Location accuracy 250(meters)
Relative position 2.7 MI. E OF CORNWALLIS PT., ON ISLAND N OF CORNWALLIS PENINSULA

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Port Alexander D-1 NW(quadrangle 1:24,000 scale)

Port Alexander NE(quadrangle 1:100,000 scale)

Port Alexander(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Central Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Tongass National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS OF 84-837, LOC. 2 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Barium-Barite Critical Primary
Strontium Secondary

Materials information

Materials Type of material
Barite Ore
Witherite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -134.20193, 56.92806
ListMap

Economic information

Ore body information

  • General form PINCH AND SWELL, LENS, POD

Economic information about the deposit and operations

Development status Prospect
Commodity type Non-metallic
Deposit size Small
Significant No
Discovery year 1931
Discoverer George Comstock

Comments on the workings information

  • NATURE OF WORKINGS NOT DEFINED. DIAMOND DRILLING MAY HAVE BEEN MADE AT SOME SITES.

Comments on development

  • CLAIMS LOCATED IN AREA IN 1923. WITHERITE DISCOVERED IN 1931. NO PRODUCTION. MUCH CURRENT INTEREST IN AREA, WITH MANY CLAIMS STAKED IN 1970'S AND ACTIVE AS OF 1982. DIAMOND DRILLING AT SOME SITES.

Reference information

Bibliographic references

  • Deposit

    USGS OF 84-837, P. 6, 8, LOC. 2 (1984)

  • Deposit

    USGS B 963-A, P. 40-42 (1949)

  • Deposit

    USGS B 773, P. 136 (1925)

  • Deposit

    USGS OF 78-787, P. 8 (1978)

  • Other Database

    BAG-OF-84-837-2

General comments

Subject category Comment text
Deposit BARITE VEINS UP TO 5 FT. WIDE AND 200 FT. LONG, AND BARITE-WITHERITE STRINGERS AND LENTICULAR PODS UP TO A FEW IN. WIDE AND 150 FT. LONG FILL FRACTURES IN VOLCANIC ROCKS ON WAVE-CUT BENCH.
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Deposit MUCH CURRENT INTEREST IN AREA, MAY CONTAIN EITHER VOLCANOGENIC MASSIVE SULFIDE OR MISSISSIPPI VALLEY-TYPE PB-ZN-BARITE DEPOSITS. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1987 Niles, L.P. (Huber, D.F.) U.S. Geological Survey
Editor 14-SEP-1994 Waller, Nichelle (Mosier, Dan) U.S. Geological Survey PARSED OUT HOST ROCK AND ASSOCIATED ROCK TYPES, AGES, UNIT NAMES, AND UNIT AGES.

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.