| Deposit ID | 10069227 |
|---|---|
| MRDS ID | W002758 |
| Record type | Site |
| Current site name | Dumont |
| Geographic coordinates: | -78.433, 48.64999 (WGS84) |
|---|---|
| Relative position | 60 KM NORTHEAST OF ROUYN - NORANDA |
Political divisions (FIPS codes)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
| Country | State |
|---|---|
| Canada | Quebec |
| Commodity | Importance |
|---|---|
| Nickel Critical | Primary |
| Materials | Type of material |
|---|---|
| Pentlandite | Ore |
| Magnesite | Gangue |
| Serpentine | Gangue |
| Talc | Gangue |
| Result | PRIMARY SULFIDES ARE APPROX. 1 MM. IN DIAMETER |
|---|---|
| Result | SECONDARY SULFIDS RANGE UP TO 100 MICRONS IN SIZE |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite | ||||||||
| Rock unit name | Ultramafics | ||||||||
| Rock description | Ultramafics | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Ultramafic Intrusive Rock |
| Rock unit name | Andesites |
| Rock description | Andesites |
| (1) | -78.433, 48.64999 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Trend Of Greenstone Belt |
| Type of structure | Local |
| Structure description | None |
| General form | SILL LIKE |
|---|---|
| Strike | N 60 W |
| Dip | 70 NE |
| Thickness | 800M |
| Length | 7000M |
| Width | 1000M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Large |
| Significant | No |
| Discovery year | 1970 |
| Type | Owner |
|---|---|
| Owner | Dumont Nickel Corp. |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1973 | ||||||||||||||
| Total resources | 500000000000mt ore | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W002758 |
SKINNER, WALTER R., 1973, MINING INTERNATIONAL YEARBOOK: THE FINANCIAL TIMES, LONDON, 1973, P. 225.
MINING MAGAZINE, 9/74, P.207
THE NORTHERN MINER,1974,CANADIAN MINES HANDBOOK 1974-1975,P.115.
| Subject category | Comment text |
|---|---|
| Deposit | THE WELLGREEN PROPERTY IS HELD BY HUDSON-YUKON MINING CO., LTD. (95.5% OWNED BY HUDSON BAY MINING AND SMELTING CO., LTD. A 215,000 M.T.P.Y. CONCENTRATOR WAS COMPLETED AND PRODUCTION COMMENCED IN 1972. DUE TO UNDERGROUND MINING DIFFICULTIES THE WELLGREENE MINE WAS CLOSED EARLY 1973 |
| Deposit | NEAR AMOS, QUEBEC, CANADA, NORTH OF VAL D'OR, CANADA. FEASIBILITY STUDY HAS BEEN COMPLETED (1973) AND AN INITIAL 1.5 MILLION M.T.P.Y. OF ORE IS PROJECTED, SUBJECT TO COMPLETION OF FINANCING-DUMONT NICKEL CORPORATION .. DUMONT NICKEL COMPANY. INVESTMENT SO FAR $14 MILL.. AN ULTRAMAFIC SILL OF ARCHEAN AGE WAS INTRUDED INTO ARCHEAN ANDESITES OF THE ABITIBI GREENSTONE BELT. DURING INTRUSION, HOW DIFFERENTIATION CONCENTRATED OLIVINE TOWARDS THE SILL'S CENTER AND SOME IMMISCIBLE SULFIDE BLEBS SEPARATED FROM THE MAGMA. THE ULTRAMAFIC SHEET WAS SERPENTINIZED. DURING THIS ALTERATION, NI IN THE OLIVINE WAS REMOBILIZED AND COMBINED WITH SULFUR TO FORM SECONDARY, FINE GRAINED SULFIDE BLEBS. THIS SECONDARY ENRICHMENT IN NICKEL SULFIDES CAN OCCUR ONLY IN LOW GRADE DEPOSITS IN WHICH THE SILICATE MINERAL ASSEMBLAGES CAN BUFFER THE CHEMICAL REACTIONS. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-1974 | Shaffer, Glenn L. | U.S. Geological Survey | |
| Updater | 01-APR-1976 | Foose, Michael P. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.