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Kelian Gold Deposit

Prospect in Indonesia with commodities Gold, Silver
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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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Ownership information
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10097328
MRDS ID SP00001
Record type Site
Current site name Kelian Gold Deposit
Related records 10304062

Geographic coordinates

Geographic coordinates: 115.45167, -0.02063 (WGS84)
Relative position 200 KM NORTHWEST OF BALIKPAPAN; APPROXIMATELY 20 KM WSW OF LONG IRAM; ADJACENT TO THE KELIAN RIVER, A TRIBUTARY OF THE MAHAKAM RIVER.

Site location context

Political divisions (FIPS codes)

Indonesia(country)

Asia(continent)

Land(continent)

Geographic areas

Country
Indonesia

Comments on the location information

  • MEASURED FROM MAPS CONTAINED IN P. T. KELIAN EQUATORIAL MINING, REPORT NO. 10, RELINQUISHMENT REPORT, 1986.

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Comments on the commodity information

  • UNIDENTIFIED BASE METAL ALSO PRESENT (HANDWRITTEN NOTES INDICATE CU, PB, ZN). OTHER COMMODITIES PRESENT: NO INFORMATION (CU, PB, ZN). AG (NO INFORMATION).

Materials information

Materials Type of material
Acanthite Ore
Argentite Ore
Cinnabar Ore
Covellite Ore
Digenite Ore
Electrum Ore
Galena Ore
Marcasite Ore
Stibnite Ore
Chlorite Gangue
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) See Comments

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Stratigraphic age (youngest) Miocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) 115.45167, -0.02063
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description East-Trending Belt Of Uplifted And Strongly Faulted Foreland Basement High, Approximately 100 Km Wide Extending Between Lat. 0! & 1!N And Long. 116!E And 110!E.
Type of structure Local
Structure description Hydrothermal Brecciation Near Andesite Contacts

Ore body information

  • General form IRREGULAR
    Thickness 200M
    Length 715M
    Width 400M
    Depth to top 0M
    Depth to bottom 200M

Comments on the ore body information

  • Orebody length is many times the given width. Orebody width measurement is for east prampus

Controls for ore emplacement

  • Extensive Multiphase Hydrothermal Alteration And Gold Mineralization Are A Consequence Of Andesite Intrusion. Ore Associated With Hydrothermal Breccias Located Along Andesite Contacts.

Comments on the geologic information

  • PYROCLASTIC UNIT IS 21 M.Y. (UPPER MIOCENE). K-AR DATES OF 20.2 +/- 0.3 AND 20.8 +/- 0.2 MA, ON ADULARIA AND SERICITIZED RHYOLITE RESPECTIVELY, SUGGEST THAT MINERALIZATION IS YOUNGER.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1976
Discoverer P. T. Rio Tinto Indonesia, A Wholly Owned Subsidiary Of Cra Limited, Australia.

Ownership information

  • Type Owner
    Owner Joint Venture Between Cra Ltd.
    Interest 67.9
  • Type Owner
    Owner Kalimantan Gold Nl
    Interest 22.1
  • Type Owner
    Owner P. T. Buana Jaya Raya Jakarta Mining Co.
    Interest 10
  • Type Operator
    Owner P. T. Kelian Equatorial Mining; Management Group Staffed By Cra, Ltd.

Reserves and resources

  • Type In-situ
    Name OXIDE
    Estimate year 1989
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.95 g/mt Gold Major 1989
  • Type In-situ
    Name SULFIDE
    Estimate year 1989
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.87 g/mt Gold Major 1989

Comments on the reserve resource information

  • KELIAN MINEABLE RESERVES: EAST PRAMPUS 3.0 MTONNES AT 2.09 G/T AU OXIDE, 45.6 MTONNES AT 1.93 G/T AU SULFIDE, 48.6 MTONNES AT 1.94 G/T AU TOTAL. WEST PRAMPUS 0.8 MTONNES AT 1.42 G/T AU OXIDE, 4.1 MTONNES AT 2.42 G/T AU SULFIDE, 4.9 MTONNES AT 2.26 G/T AU TOTAL. TOTAL 3.8 MTONNES AT 1.95 G/T AU OXIDE, 49.7 MTONNES AT 1.97 G/T AU SULFIDE, 53.5 MTONNES AT 1.97 G/T AU TOTAL.
  • TOTAL RESOURCE AT KELIAN IS 77.8 MILLION TONNES AT 1.8 G/T GOLD INCLUDING 14.2 MILLION TONNES OF MARGINAL ORE AT A GRADE OF 0.6 G/TONNE. THE NUMBER REPRESENTS MEASURED IN SITU ESTIMATE BASED ON GEOLOGICAL DATA.
  • TOTAL RESOURCE THAT INCLUDES 14.2 MILLION TONNES OF MARGINAL ORE AT A GRADE OF 0.6 G/TONNE. NUMBER REPRESENTS MEASURED IN SITU ESTIMATE BASED ON GEOLOGIC DATA.

Comments on the workings information

  • THERE ARE NO WORKINGS AT PRESENT. WILL BE MINED IN TWO ADJACENT OPEN PITS.

Comments on development

  • PROPOSED PROJECT HAS MINE LIFE OF APPROXIMATELY 11 YEARS; ORE TREATMENT 5 MILLION TONNES PER YEAR; GOLD PRODUCTION 6000 KG PER YEAR.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit TWO ADJACENT DEPOSITS; EAST AND WEST PRAMPUS
Deposit ALLUVIAL GOLD WORKING DEVELOPED BY LOCAL POPULATION DOWNSTREAM FROM KELIAN AFTER DEPOSIT DISCOVERED AND EXPLORATION BEGAN. LARGELY SUMMARY-BASED ON UNPUBLISHED INFORMATION. MORE DETAILED DESCRIPTION OF GEOLOGY AND ALTERATION IN VAN LEEUWEN AND OTHERS (1990).

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1990 Zientek, Michael L. U.S. Geological Survey

Beyond USGS

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

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