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Okbang Operations Mine

Producer in Kyongsang-Bukto, Korea, South with commodities Tungsten, Fluorine-Fluorite
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10021614
MRDS ID DE00291
Record type Site
Current site name Okbang Operations Mine
Alternate or previous names Okpang Mine

Geographic coordinates

Geographic coordinates: 129.13783, 36.92157 (WGS84)
Relative position MINE OFFICE

Site location context

Political divisions (FIPS codes)

Kyongsang-Bukto(province)

Korea, South(country)

Geographic areas

Country State
Korea, South Kyongsang-Bukto
Korea, South
Korea, South

Comments on the location information

  • IN SSANGJEON-RI, SEO-MYEON (LEE, S.M. 1967).

Commodities

Commodity Importance
Tungsten Critical Primary
Fluorine-Fluorite Critical Primary

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Metamorphic Rock > Amphibolite
    Rock unit name Wonnam Gneiss
    Rock description Wonnam Gneiss

Nearby scientific data

(1) 129.13783, 36.92157
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Pegmatite Occurs In Amphibolite And Gneiss Near Contact With Jurassic (?) Granite.

Comments on the geologic information

  • PRINCIPAL MINERAL ASSEMBLAGES: SCLT + MLBD + CLCP + QRTZ + TRML; SCLT + MLDB + CLCP + QRTZ + FLDP + EPDT. MINERALIZATION PROBABLY GENETICALLY RELATED TO REGIONALLY DEVELOPED PEGMATITES WHICH, IN TURN, ARE PROBABLY METAMORPHOGENIC. MINERALIZATION IS FRACTURE CONTROLLED WITH VEINS OCCUPYING MAJOR SHEAR ZONES. VEINS VARY FROM A FEW CMS TO 1 M IN WIDTH AND FROM ABOUT 1 M TO ABOUT 1 KM IN LENGTH. OVER 50 KNOWN SCHEELITE OCCURRENCES IN DISTRICT.
  • PRINCIPAL MINERAL ASSEMBLAGES: PLGC + BOTT + HBLD + QRTZ + SCLT + FLRP + PYRT + PYTT + CLCT. SCHEELITE-BEARING ZONE IN PEGMATITE IS 1,000 M ALONG STRIKE, 200 M DEEP. OREBODIES CONSIST OF SCHEELITE-RICH POCKETS CONTAINING AS MUCH AS 700 TONS OF WO3 (CHUNG, C.K., 1975)

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Significant No
Discovery year 1941
Year of first production 1939
Year of last production 1985

Ownership information

  • Type Owner-Operator
    Owner Okbang Mining Co. Ltd.

Comments on the production information

  • ANNUAL ITEMS 1 AND 2 REFER TO THE KAALBEEN AND ISIS PROSPECTS RESPECTIVELY. TYPICAL ANNUAL PRODUCTION FIGURES FOR OTHER PROSPECTS IN THE DISTRICT ARE NOT AVAILABLE.
  • ON ANNUAL PRODUCTION: APPROXIMATELY 100 MT YR OF (75%?) WO3 CONCENTRATE. CUMULATIVE PRODUCTION: 70% WO3?

Comments on the reserve resource information

  • THE ABOVE RESOURCE FIGURE REPRESENTS A CUMULATIVE TOTAL OF SOME 40 PROSPECTS AND MINOR OCCURRENCES AND IS BASED VERY LARGELY ON SCANT INFORMATION.

Comments on development

  • ACTIVE DEVELOPMENT IN MINE: NO. ACTIVE EXPLORATION IN DISTRICT: NO. ASSESSMENT: SHORT TERM PRODUCTION ON A SMALL SCALE.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Discovery Year: 1941 (OF TUNGSTEN). REGISTERED AS A GOLD MINE IN 1939.
Deposit DEPTH OF UNCONSOLIDATED COVER: 0-3 M. PRODUCT UPGRADED BEFORE EXPORT: CONCENTRATE. STEPHAN, L.A. AND HAMMERBECK, E.C.I., 1978 SUMMARIZES THE GEOLOGY OF THE SCHEELITE DEPOSITS INTHE VIOOLSDRIF AREA. BOWLES, M., 1984 IS THE BEST RECORD OF ECONOMIC ASPECTS OF TUNGSTEN DEPOSITS. SOHNGE, G., 1944 IS A GOOD DETAILED DESCRIPTION, WITH MAPS OF SEVERAL TUNGSTEN DEPOSITS. SOUTH AFRICAN COMMITTEE FOR STRATIGRAPHY, 1980 IS A GOOD RECENT SUMMARY OF GEOLOGY.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1985 Sinclair, W. David Geological Survey of Canada

Beyond USGS

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

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