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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Isabela Eluvial

Prospect in Philippines with commodity Chromium
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10280492
MAS/MILS ID 5650150097
Record type Site
Current site name Isabela Eluvial
Alternate or previous names Bicobian

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 122.34926, 17.26663 (WGS84)
Elevation 25

Site location context

Political divisions (FIPS codes)

Philippines(country)

Asia(continent)

Land(continent)

Geographic areas

Country
Philippines

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Unknown
Hematite Unknown
Magnetite Unknown

Nearby scientific data

Ore Body (1) 122.34926, 17.26663
ListMap

Economic information

Ore body information

  • Thickness 2.2M
    Length 5000M
    Width 2200M
    Depth to top 1.5M
    Field Value
    MAS Matrix # 1
    MAS Column # 2
    Type of Orebody #1 PLACER
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 LATERITE
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin RESIDUAL CONCENT
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 1.5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830712
  • Area 100HA
    Field Value
    Total Surface Area (HA) 100
    Date of Last Modification 910418

Comments on the geologic information

  • THE ORE AT THE BICOBIAN MINE IS ELUVIAL LATERITIC SOIL.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant Yes
Discovery year 1976
Mining method Strip-Level
Milling method Gravity

Mining district

District name Isabela

Ownership information

  • Type Owner-Operator
    Owner Island Mining And Industrial Corp. (Imic)
    Interest 100
    Home office Philippines
    Year 1981

Reserves and resources

  • Type In-situ
    Estimate year 1987
    Demonstrated 29047000mt ore
    Total resources 29047000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 3.87 wt-pct Chromium Major 1987

Comments on the reserve resource information

  • CR2O3. ANALYZED AS CHROMITE MET PRODUCTS.
  • M9C4=M1C2 MATRIX 9 COLUMN 4 EQUALS MATRIX 1 COLUMN 2 RESOURCE ESTIMATE IN Q-MAT 1 IS BASED ON 1000 DRILL HOLES AND REPRESENTS TONNAGE ONLY IN 9 CLAIM BLOCKS EVALUATED AS OF 1980. THE COMPANY HOLDS AN UNKNOWN NUMBER OF ADDITIONAL MINING CLAIMS IN THE AREA.
  • FORMERLY CALLED BICOBIAN IN OLD ADIT. RENAMED AS ISABELA (ELUVIAL) PROJECT FOR UPDATED AVAIL.STUDY (1988). ABOUT 8,000 MTPY OF HANDSORTED LUMP ORE WAS SHIPPED FROM THE AREA IN BOTH 1985 AND 1986 BUT SHUT DOWN IN 1986 DUE TO "INTENSIVE INSURGENCY ACTIVITY". THIS EVALUATION ADDRESSES THE LOW-GRADE ELUVIAL (LATERITIC) RESOURCE POTENTIAL ONLY--NO PRODUCTION FROM WHATEVER MASSIVE ORE DEPOSITS MAY EXIST IN THE AREA WAS ADDRESSED. FOR ANALYSIS: 684,000 MTPY ROM FOR: 51,700 MTPY CONCS.AT 35.3 %

Workings at the site

  • Type of workings Surface
    Area 100HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Percent Waste Rock 33
    Avg. Overburden Thickness 1.5
    Primary Material Cover SAND, GRAVEL
    Percentage 100
    Hardness of Ore SAND, GRAVEL
    Capacity 175
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 3
    Year of Information 1981

Comments on other economic factors

  • TRANSPORTATION COST MILL TO SMELTER IS $24.32/METRIC TON. TRANSPORTATION COST SMELTER TO REFINERY $10.00/METRIC TON.

Reference information

Bibliographic references

  • Reserve-Resource

    ISLAND MINING INDUSTRIAL CORPORATION, 1980, THE ELUVIAL

  • Reserve-Resource

    CHROMITE AND IRON PROJECT OF ISLAND MINING AND

  • Reserve-Resource

    INDUSTRIAL CORPORATION AT BICOBIAN, ISABELA,

  • Reserve-Resource

    PHILLIPINES, 10P.

  • Deposit

    PERSONNAL COMM., 1980. INTERVIEW WITH MINING CONSULTANT,

  • Deposit

    MANILIA.

General comments

Subject category Comment text
Deposit PROPERTY LOCATED IN ISABELA PROVINCE, 12 KMS INLAND FROM THE COAST. ALL TONNAGES (MINE/MILL/Q-MAT) ARE ON A DRY MT BASIS.

Reporter information

Type Date Name Affiliation Comment
Reporter 03-SEP-1992 Boyle, Ed U.S. Bureau of Mines

Beyond USGS

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

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