| Deposit ID | 10255128 |
|---|---|
| MAS/MILS ID | 3510230090 |
| Record type | Site |
| Current site name | Caue |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -43.24894, -19.5975 (WGS84) |
| Location accuracy | 1000(meters) |
Political divisions (FIPS codes)
Minas Gerais(province)
Brazil(country)
South America(continent)
Land(continent)
| Country | State |
|---|---|
| Brazil | Minas Gerais |
| Commodity | Importance |
|---|---|
| Iron | Primary |
| Materials | Type of material |
|---|---|
| Amphibole | Unknown |
| Feldspar | Unknown |
| Hematite | Unknown |
| Mica | Unknown |
| Quartz | Unknown |
| Ore Body (1) | -43.24894, -19.5975 |
|---|
| Thickness | 150M | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length | 6000M | ||||||||||||||||
| Width | 4000M | ||||||||||||||||
| |||||||||||||||||
| Operation type | Surface |
|---|---|
| Development status | Producer |
| Commodity type | Metallic |
| Significant | Yes |
| Year of first production | 1968 |
| Type | Owner-Operator |
|---|---|
| Owner | Cia Vale Do Rio Doce (Cvrd) |
| Interest | 100 |
| Year | 1982 |
| Type | In-situ | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1982 | ||||||||||||||||||||||||||||
| Measured | 725000000mt ore | ||||||||||||||||||||||||||||
| Demonstrated | 725000000mt ore | ||||||||||||||||||||||||||||
| Total resources | 725000000mt ore | ||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1993 | ||||||||||||||
| Demonstrated | 600000000mt ore | ||||||||||||||
| Total resources | 600000000mt ore | ||||||||||||||
| |||||||||||||||
| Type of workings | Surface | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Area | 2400HA | ||||||||||||||||||||||
| |||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 3510230090 |
AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUN 93,P. 36.
DORR II, J.V.N., NATURE AND ORIGIN OF THE HIGH-GRADE
HEMATITE ORES OF MINAS GERAIS, BRAZIL, ECONOMIC GEOLOGY,
JANUARY-FEBRUARY, 1965, VOL. 60, NO. 1, 46 P.
E/MJ, CVRD: CHARGING INTO THE FUTURE WITH A BUNDLE OF NEW
PROJECTS, NOVEMBER, 1975, PP 110-119.
MINING MAGAZINE, BRAZILIAN IRON ORE, MARCH, 1977, PP. 152 -
165.
SKILLINGS, JR, D.N., C.V.R.D.'S IRON ORE MINING AND PLANT
OPERATIONS AT ITABIRA, SKILLINGS MINING REVIEW, SEPTEMBER
1977, PP 10 - 16.
| Subject category | Comment text |
|---|---|
| Deposit | THE HIGH-GRADE HEMATITE DEPOSITS OF MINAS GERAIS, BRAZIL, ARE THOSE AVERAGING MORE THAN 66% FE AND LESS THAN 1.5% H20. THEY OCCUR IN THE CAUE ITABIRITE, A METAMORPHOSED OXIDE- FACIES IRON FORMATION OF PRECAMBRIAN AGE. THIS FORMATION WAS INTRICATELY FOLDED DURING AN OROGENY THAT METAMORPHOSED PELITIC ROCKS TO THE GREENSCHIST AND ALMANDINE-AMPHIBOLE FACIES, ACCOMPANIED BY THE FORMATION OF GRANITIC ROCKS. THE FOLDING PRODUCED MUCH PLASTIC ROCK FLOWAGE TOWARD THE AXES OF MANY FOLDS, THICKNESS OF THE ITABIRITE RANGING FROM A FEW TO MORE THAN 1,400 M. THE GREAT MAJORITY OF THESE ORE BODIES ARE ASSOCIATED WITH FOLDED STRUCTURES IN THE HOST ITABIRITE, A FEW ARE ASSOCIATED WITH PREORE THRUST FAULTS, AND SOME WITH ABRUPT STEEPENING OF REGIONAL LINEAR STRUCTURE. MOST OF THE ORE OCCURS IN THE LOWER, MORE SILICEOUS TWO THIRDS OF THE ITABIRITE; SOME OCCURS IN THE UPPER THIRD, WHICH IS LOCALLY DOLOMITIC. THE ORE MINERAL IS DOMINANTLY HEMATITE. IT WAS FORMED DURING THE METAMORPHIC CYCLE, AFTER THE FOLDING. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 02-AUG-94 | Bolis | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.