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  3. Mineral Resource Data System (MRDS)

Aurora Mine

Past Producer in Guyana with commodity Gold
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10060912
MRDS ID TC32003
Record type Site
Current site name Aurora Mine
Alternate or previous names Includes Aleck Hill, Mad Kiss, And Walcott Gold Deposits

Geographic coordinates

Geographic coordinates: -59.73683, 6.79179 (WGS84)
Relative position SOUTH OF CUYUNI RIVER, 10 MI W OF GEORGETOWN.

Site location context

Political divisions (FIPS codes)

Guyana(country)

South America(continent)

Land(continent)

Geographic areas

Country
Guyana

Comments on the location information

  • ALECK HILL DEPOSIT ON HILL 4000 FT SOUTH OF AURORA LANDING; MAD KISS IS 1450 FT EAST OF ALECK HILL; WALCOTT HILL IS 800 FT NORTH OF MAD KISS.

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Molybdenite Ore
Pyrite Ore
Ankerite Gangue
Limonite Gangue
Quartz Gangue
Sericite Gangue

Analytical data

Result ALECK HILL DEPOSIT-NO.1 ADIT 1.104 OZ/SHORT TON AU
Result MAD KISS DEPOSIT-SHAFT NO.2 0.40 TO 0.89 OZ/SHORT TON AU, OPEN-CUT AVERAGE 0.25 OZ/SHORT TON AU
Result WALCOTT HILL 0.16 TO 0.60 OZ/SHORT TON AU IN TRENCHES.

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 Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Cuyuni Formation, Mazaruni Group
    Rock description Cuyuni Formation, Mazaruni Group
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -59.73683, 6.79179
ListMap

Economic information

Ore body information

  • Dip SW (1)

Comments on the geologic information

  • ANKERITE UP TO 50% OF MINERALS IN WALLROCK ALTERATION.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1911
Discoverer Local Miners

Mining district

District name Aurora Division

Ownership information

  • Type Owner-Operator
    Owner Denison/South American Gold Fields
    First year 1990
  • Type Owner-Operator
    Owner Solar Development Co.
    First year 1938
    Last year 1945
  • Type Owner-Operator
    Owner Cuyuni Goldfields Co.
    First year 1945

Production statistics

  • Year 1946
    Period 1946
    Material ORE (2)
    Description Cp_Grade: ^0.25 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Gold Gold 7g/mt
  • Year 1948
    Period 1948
    Material ORE (3)
    Description Cp_Grade: ^0.52 Oz/Ton
  • Year 1948
    Period 1945-1948
    Material ORE (3)
    Description Cp_Grade: ^0.4430 Oz/Ton
  • Year 1948
    Period 1941-1948
    Material AU (3)
    Description Cp_Grade: ^0.702 Oz/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Gold Gold 20g/mt
  • Year 1950
    Period 1939-1950
    Material ORE (1)
    Description Cp_Grade: ^0.52 Oz/Ton Recoverable Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Gold Gold 15g/mt

Comments on the production information

  • ORE (1) IS ALL 3 DEPOSITS; ORE (2) IS MAD KISS OPENCUT; AU (1) IS ALL 3 DEPOSITS. AU (3) AND ORE (3) ATTRIBUTABLE TO ALECK DEPOSIT; ORE (4) TOTAL PRODUCTION (WEBER, 1952), LARGEST PART FROM ALECK DEPOSIT. AURORA AND PETERS MINE PRODUCED 1 MT OF AU IN 1905-1909 AND 2 MT IN 1939-1950 (BARNARD, 1990). VEINS GRADE 0.5-1.0 OZ/ST; STOCKWORK GRADES 0.25 OZ/ST.

Comments on the reserve resource information

  • SEVERAL THOUSAND TONS OF PROVEN AND INDICATED RESERVE.

Comments on the workings information

  • ALECK HILL DEPOSITS: NO. 1 ADIT 75 FT BELOW CROWN OF HILL WSW INTERSECTED ORE AT 180 FT WITH 40 FT ON S WALL AND 62 FT ON N WALL; CONTINUED 630 FT NNW AND 810 FT SSE. NO. 2 ADIT N 264: HIT (126 FT BELOW HILL) ORE AT 262 FT AND CONTINUED IN ORE BODY 320 FT; CONTINUED NNW FOR 330 FT AND 870 FT SSW, ALSO EXTENDED 180 FT SE. SHAFT SUNK (1946) ON HILLSIDE 90 FT ABOVE NO. 2 TO DEPTH OF 243 FT WITH NW CROSS-CUT, FOR 210 FT (120 FT BELOW NO. 2) INTERSECTED ORE AT 165 FT; NO. 4 LEVEL (246 FT BELOW HILL) DRIVEN 510 NNW AND 120 FT SSW. MAD KISS DEPOSIT: 5 SHAFTS 30-50 FT DEEP, 120 FT LONG, AND 40 FT WIDE. WALCOTT HILL: OPEN-CUTS, TRENCHES, SHORT ADIT

Comments on development

  • ECON.YEAR: 1950 ; ECON.COM: MILL CAPACITY 100 TON/DAY; ALECK HILL DEPOSIT FOUND IN 1939 BY MR. ALECK ANSDELL, DRILLED IN 1945 AFTER CONSIDERABLE UNDERGROUND DEVELOPMENT; WALCOTT HILL DISCOVERED IN 1938.

Reference information

Bibliographic references

  • Deposit

    MACDONALD, J.R., 1968, A GUIDE TO MINERAL EXPLORATION IN GUYANA: GEOLOGICAL SURVEY OF GUYANA, BULLETIN 38, P. 27-30.

  • Deposit

    ALLEN, P.M., 1962, PURUNI NW: GEOLOGICAL SURVEY OF BRITISH GUIANA, SCALE 1:200,000.

  • Deposit

    BARNARD, F., 1990, GOLD RUSH ARRIVES IN GUIANA SHIELD: ENGINEERING AND MINING JOURNAL, V. 191, NO. 8, P. 57-63.

  • Deposit

    WEBER, B.N., 1952, RECONNAISSANCE OF THE ALEX HILL AND MAD KISS MINES CUYUNI GOLDFIELDS AURORA DISTRICT, CUYUNI RIVER, BRITISH GUIANA: GEOLOGICAL SURVEY OF BRITISH GUIANA BULLETIN NO. 23, SEC. 4, P. 76-86.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit THICKNESS: 90 FT (1), 40 FT (2); (1) ALECK HILL MINERALIZED ZONE; ARE 6 DISCONNECTED LENTICULAR SHOOTS THAT VARY FROM 35 TO 155 FT IN LENGTH AND 1.73 FT IN THICKNESS TOTALLY 350 FT AGGREGATE LENGTH, (2) MAD KISS; ORIENTATION OF MINERALIZED PORPHYRY WITH QUARTZ VEINS N60W, 70NW, (3) WALCOTT HILL IRREGULAR.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1992 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

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