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Ansil

Producer in Quebec, Canada with commodities Copper, Zinc, Silver, 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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10056487
MRDS ID TC00506
Record type Site
Current site name Ansil

Geographic coordinates

Geographic coordinates: -79.11637, 48.35416 (WGS84)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Quebec

Comments on the location information

  • NEAREST SERVICE CENTER IS ROUYN-NORANDA

Commodities

Commodity Importance
Copper Primary
Zinc Critical Primary
Silver Primary
Gold Primary

Comments on the commodity information

  • METAL ZONING NOTED BUT NOT GIVEN

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Silver Ore
Sphalerite Ore
Chert Gangue

Alteration

  • (Local) Chlorite And Sericite Regional Haloes; Alteration Significant In Hanging Wall

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Northwest Rhyolite;Rusty Ridge Andesite
    Rock description Northwest Rhyolite;Rusty Ridge Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -79.11637, 48.35416
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Abitibi Greenstone Belt
Type of structure Local
Structure description Homoclinal Sequence Dipping 45deg To 50deg E; Two Faults At Mine, D-G Fault With Nw Trend And The Snooop Fault With An East, North-East Trend. Displacement Of 50-100 M Does Not Affect Deposit; Contact Between Nw Rhyolite And Rusty Ridge Andesite Has A Staircase Patten To The Top Of The Rhyolite. Contact Exhibits Small-Scale Shears Suggesting Late Thrust Movement.

Comments on the geologic information

  • RHYOLITES ARE FLOW-BANDED TO MASSIVE; ANDESITES ARE MASSIVE AND PILLOWED; MASSIVE MAGNETITE UNDERNEATH THE DEPOSIT AS WELL AS LOCALLY ABOVE; BIMODEL FELSIC AND MAFIC SUBMARINE VOLCANIC ROCKS OF THE BLAKE RIVER GROUP METAMORPHOSED TO GREENSCHIST FACIES; VOLCANIC ROCKS DIP 20DEG TO 50DEG E.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1981
Discoverer Minnova Corp. Geologists

Ownership information

  • Type Owner-Operator
    Owner Minnova Inc.

Production statistics

  • Year 1989
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^7.22% Cu, 25.5 G/T Ag, 1.94 G/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 2g/mt
    Ore Silver Silver 26g/mt
    Ore Copper Copper 7wt-pct
  • Year 1990
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^9.0% Cu, 28.10 G/T Ag, 1.72 G/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Copper Copper 9wt-pct
    Ore Silver Silver 28g/mt
    Ore Gold Gold 2g/mt

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Total resources 1249681000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 7.66 wt-pct Copper Major 1990
    Zinc Zn 0.81 wt-pct Zinc Major 1990
    Silver Ag 22.16 g/mt Silver Major 1990
    Gold Au 1.53 g/mt Gold Major 1990

Comments on the reserve resource information

  • 1,181,673 MT ARE PROVEN; THE 68,008 MT ARE ADDITIONAL PROBABLY RESERVES.

Workings at the site

  • Type of workings Underground
    Overall depth 1500M

Comments on the workings information

  • PRODUCTION SHAFT 1.5 KM DEEP AND 8,800 M OF DRIFTS AND RANGES.

Comments on development

  • SURFACE DRILLING IN 14 HOLES WITH TOTAL LENGTH OF 10,300M; UNDERGROUND DRILLING IN OVER 660 HOLES WITH LENGTH OF 44,775 M FOR DEFINITION AND 12,630 M FOR EXPLORATION ; MILL.CAP: 1250 MT/D ; ECON.COM: FLOTATION USED FOR EXTRACTION

Reference information

Bibliographic references

  • Deposit

    CORE SHED DISPLAY APPENDIX, 1990, VIII SYMPOSIUM, INTERNATIONAL ASSOCIATION ON THE GENESIS OF ORE DEPOSITS, OTTAWA, CANADA

  • Production

    CORE SHED DISPLAY APPENDIX, 1990.

General comments

Subject category Comment text
Deposit SINGLE MASSIVE SULFIDE LENS AT THE CONTACT BETWEEN THE NORTHWEST RHYOLITE (FOOTWALL) AND THE RUSTY RIDGE ANDESITE (HANGING WALL). DEPOSIT HAS TWO DOMES SEPARATED BY A THIN CENTRAL PORTION; STRINGER SULFIDES IN BOTH HANGING WALL AND FOOTWALL.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1990 Bliss, James D. U.S. Geological Survey

Beyond USGS

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

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