Gros Rosebel

Prospect in Suriname with commodities Gold, Tungsten
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10063976
MRDS ID TC38111
Record type Site
Current site name Gros Rosebel
Alternate or previous names Rosebel Area Gross Rosebel, Includes Mayo, Savannah Mine, Royal Hill, Roma, Rosebell Koolhauen,, Pay Caro, East Pay Caro, and Several Other Areas, Headley's Reef Concession, Bens Stork Concession

Geographic coordinates

Geographic coordinates: -55.58257, 5.13464 (WGS84)

Site location context

Political divisions (FIPS codes)

Suriname(country)

South America(continent)

Land(continent)

Geographic areas

Country
Suriname

Commodities

Commodity Importance
Gold Primary
Tungsten Critical Primary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Wolframite Ore
Chlorite Gangue
Quartz Gangue

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
    Rock unit name Rosebel Formation;Amina Formation
    Rock description Rosebel Formation;Amina Formation

Nearby scientific data

(1) -55.58257, 5.13464

Economic information

Geologic structures

Type of structure Local
Structure description Syncline With Low Angle Faults (Thrusts?)

Ore body information

  • Name GENERAL
    Dip }}
    Length 1200M
    Width 110M
  • Name PAY CARO ZONE
    Dip }}
    Length 500M
    Width 150M
  • Name EAST PAY CARO ZONE
    Dip }}

Comments on the geologic information

  • SYNFORMAL STRUCTURE WITH GRANITIC INTRUSION TO SOUTH CUT BY MAFIC DIKES; SYNFORM AND LOW ANGLE STRUCTURES TREND MORE OR LESS EAST-WEST. SAPROLITE DEVELOPED ON TOP OF GOLD-QUARTZ VEINS. ROSEBEL FORMATION PROTOLITH CLASTIC AND VOLCANIC SEDIMENTS, AND TUFFS AND BRECCIAS.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1880
Discoverer Prospectors, Pork Knockers
Year of first production 1880

Ownership information

  • Type Operator
    Owner Golden Star Resources Ltd.
    First year 1992
  • Type Operator
    Owner Placer Dome
  • Type Operator
    Owner Grassalco
  • Type Operator
    Owner Golden Star - Cambior
    First year 1995

Comments on the reserve resource information

  • 60 M OF LATERITE WITH QUARTZ WITH GRADES UP TO 8.4 G/T. ORE (1) = CHLORITIC PHYLLITES, ORE(2) = ALKALAI GRANITES, ORE (3) = RESERVES DEVELOPED BY PLACER DOME AT ROYAL HILL.

Comments on development

  • BEING EXPLORED BY GOLDEN STAR USING GEOCHEMISTRY, TRENCHING, DRILLING. CONCESSION COVERS 170 SQUARE KILOMETERS.

Reference information

Bibliographic references

  • Deposit

    COMMISSION FOR THE GEOLOGICAL MAP OF THE WORLD, 1983 METALLOGENIC MAP OF SOUTH AMERICA, SCALE 1:5,000,000.

  • Deposit

    BOSMA, W., HO LEN FAT, A.G., AND WELTER, C.C., 1972 (?), MINERALS AND MINING IN SURINAME: SEPARATA DE LA MEMORIA DE IX CONFERENCIA INTER-GUAYANAS BOLETIN DE GEOLOGIA: PUBLICACION ESPECIAL NO. 6 CARACAS, VENEZUELA, P. 493-526.

  • Deposit

    PAGE, N.J, FIELD EXAMINATION, MAY 1993.

  • Deposit

    WERNICK, GEORGE, 1994, GOLDEN STAR IS NO STRONGER TO GUIANA SHIELD: THE NORTHERN MINER, SEPT. 26, 1994, P. C12.

  • Deposit

    ANON., 1995, WORK PROGRAM AT GROS ROSEBEL: THE NORTHERN MINER, V. 80, NO. 50, P. 13.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit OVERLAIN BY UP TO 60 M AU-BEARING LATERITIC SOIL, TAILINGS, AND DUMPS FROM PREVIOUS MINING EFFORTS. PHYLLITES REPRESENT METATUFFS AND METAVOLCANICS. QUARTZ VEINS ARE DISTINCTIVE. IN MAY, 1993, NO BOXWORKS OR CLOSELY SPACED VEINS OBSERVED. PAY CARO ZONE: LENGTH AND WIDTH OF GOLD SOIL ANOMALY; 19 REPORTED INTERSECTIONS; HIGHEST 4.62 G/MT AU OVER 6 M; LONGEST 1.26 G/MT AU OVER 120.4 M; MOST 1-2 G/MT AU OVER 2 TO 22 M. EAST PAY CARO ZONE: 12 HOLES WITH INTERSECTIONS OF 0.92 TO 3.28 G/MT AU OVER 4 TO 72 M.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1993 Page, Norman J. U.S. Geological Survey
Updater 01-NOV-1994 Page, Norman J. U.S. Geological Survey
Updater 05-JUN-1995 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.