Dow Freeport Plants A and B

Plant in Brazoria county in Texas, United States with commodity Magnesite
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. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10227516
MRDS ID TC36742
MAS/MILS ID 0480390002
Record type Site
Current site name Dow Freeport Plants A and B
Alternate or previous names Dow Freeport, Dow A, Dow B, Texas Division, Dow Magnesium Operations, Dow Velasco
Related records 10063109

Geographic coordinates

Point of reference Plant
Geographic coordinates: -95.30853, 28.95027 (WGS84)
Elevation 2
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Brazoria(county)

Texas(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Freeport(quadrangle 1:24,000 scale)

Freeport(quadrangle 1:100,000 scale)

Bay City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Austin-Oyster(hydrologic unit)

Galveston Bay-Sabine Lake(hydrologic accounting unit)

Galveston Bay-San Jacinto(hydrologic subregion)

Texas-Gulf(hydrologic region)

Geographic areas

Country State County
United States Texas Brazoria

Commodities

Commodity Importance
Magnesite Primary

Materials information

Materials Type of material
Dolomite Unknown

Nearby scientific data

Plant (1) -95.30853, 28.95027

Economic information

Ore body information

  • Thickness 12M
    Depth to top 0M
    Field Value
    MAS Matrix # 2
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 MASSIVE
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control UNKNOWN
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Minimum Depth to Top 0
    Date of Last Modification 830630
  • Depth to top 0M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 BRINES
    Shape of Orebody #1 MANTLELIKE
    Primary mode of Origin RESIDUAL CONCENT
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830630

Comments on the geologic information

  • THE EXACT LOCATION OF THE DOLOMITE QUARRY COULD NOT BE DETERMINED DIRECTLY FROM THE COMPANY OR FROM AVAILABLE LITERATURE. THE DEPOSITS IN THE GENERAL AREA OF THE MINE ARE EITHER LOWER CRETACEOUS OR PALEOZOIC.

Economic information about the deposit and operations

Operation type Processing Plant
Development status Plant
Commodity type Metallic
Significant Yes
Mining method Nonfloating Plant
Year of first production 1941
Plant type Refiner
Plant subcategory Electrostatic
Milling method Electrolytic Facilities

Mining district

District name None

Mineral rights holdings

Type of mineral rights State Lease

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Dow Chemical U. S. A. (Division Of The Dow Chemical Co.)
    Interest 100
    Home office Michigan
    Year 1982

Production statistics

  • Year 1984
    Description Magnesium 81008 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Magnesite Magnesium 81008mt
  • Year 1985
    Description Magnesium 76912 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Magnesite Magnesium 76912mt
  • Year 1986
    Description Magnesium 69325 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Magnesite Magnesium 69325mt

Comments on the production information

  • THE "ORE" DESCRIBED IN THE PRODUCT DATA SETS IS ACTUALLY THE TOTAL NUMBER OF METRIC TONS PER DAY OF WATER PLUS THE TOTAL NUMBER OF METRIC TONS PER DAY OF DOLOMITE PROCESSED BY THE FREEPORT FACILITIES. DERIVATION OF VALUES IS PRESENTED IN APPENDIX B4.
  • EXACT RECOVERY OF MAGNESIUM, AS DETERMINED IN APPENDIX B4, IS 97.4 PERCENT.

Comments on the reserve resource information

  • DOW CURRENTLY UNDERGOING EXPANSION AND MODIFICATION PLANT CAPACITY IS 90,000 MT/YR MG (USBM 1993 ANN REPT, MAGNESIUM)

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Swell Factor .33
    Percent Waste Rock 10
    Avg. Overburden Thickness 0
    Hardness of Ore M-HARD ROCKS
    Capacity 1521
    Capacity Units MT ORE/DAY
    Unit Production Cost 14.91
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1982
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Swell Factor .33
    Percent Waste Rock 10
    Avg. Overburden Thickness 0
    Hardness of Ore M-HARD ROCKS
    Capacity 2133
    Capacity Units MT ORE/DAY
    Unit Production Cost 14.41
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1982
  • Type of workings Water
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OTHER SHALLOW WATER
    Percent Waste Rock 0
    Percent Recovery 100
    Dist. to Port Facilities 0
    Avg. Wave Height 1
    Max. Tidal Change (meters) 6.7
    Avg. Storm Duration 1
    General Remarks GULF WATER PUMPED TO PPT. Capacity : 63
    Capacity Units LITER SOLN/MIN
    Unit Production Cost 0
    Operating Days per Year 365
    Operating Shifts per Day 3
    Operating Hours per Day 24
    Year of Information 1982
  • Type of workings Water
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Mining Method OTHER SHALLOW WATER
    Percent Waste Rock 0
    Percent Recovery 100
    Dist. to Port Facilities 0
    Avg. Wave Height 1
    Max. Tidal Change (meters) 6.7
    Avg. Storm Duration 1
    General Remarks GULF WATER PUMPED TO PPT. Capacity : 89
    Capacity Units LITER SOLN/MIN
    Unit Production Cost 0
    Operating Days per Year 365
    Operating Shifts per Day 3
    Operating Hours per Day 24
    Year of Information 1982

Reference information

Bibliographic references

  • Reserve-Resource

    KIRK, R. E., AND OTHMER, D. F., MAGNESIUM AND MAGNE-

  • Reserve-Resource

    SIUM ALLOYS: ENCYCLOPEDIA OF CHEMICAL TECHNOLOGY, V. 8,

  • Reserve-Resource

    THE INTERSCIENCE ENCYCLOPEDIA, INC., NEW YORK, P. 562.

  • Deposit

    FLEMINGS, M. C., AND OTHERS, 1981, AN ASSESSMENT OF MAGNE-

  • Deposit

    SIUM PRIMARY PRODUCTION TECHNOLOGY: DIVISION OF INDUS-

  • Deposit

    TRIAL ENERGY CONSERVATION, U. S. DEPARTMENT OF ENERGY,

  • Deposit

    CONTRACT NO. AC01-76CS40284 BY MASSACHUSETTS INSTITUTE

  • Deposit

    OF TECHNOLOGY, REPORT DOE/CS/40284-T1, 176 P.

  • Deposit

    SRI INTERNATIONAL, 1982, MAGNESIA FROM SEA WATER OR BRINE:

  • Deposit

    CHEMICAL ECONOMICS HANDBOOK, P. 746.1001 T, 747.1000 E,

  • Deposit

    F, I, P, 747.2000 E, F.

General comments

Subject category Comment text
Deposit LOCATION VALUES GIVEN ABOVE APPLY TO THE PLANT A COMPLEX. LOCATION OF PLANT B IS N28DEG 59MIN 30SEC, W095DEG 22MIN 00SEC. PLANT A IS LOCATED ON THE "FREEPORT, TEX." 7.5 MIN., USGS QUAD. PLANT B IS LOCATED ON THE "JONES CREEK, TEX." 7.5 MIN. USGS QUAD. FOLLOWING COMPLETION OF THE PRELIMINARY DRAFT OF THIS REPORT THE MINERALS AVALIABILITY FIELD OFFICE PERMITTED ENTRY OF MAGNESIUM ASSAYS, RECOVERIES, YIELDS, ETC., BASED UPON MAGNESIUM METAL, RATHER THAN OXIDE OR CHLORIDE, VALUES. THIS REPORT HAS NOT BEEN CHANGED TO REFLECT THIS ALTERNATE ENTRY METHODOLOGY. UPDATE WAS DONE MARCH 1988 PRODUCTION FIGURES BY COMMODITY SPECIALIST

Reporter information

Type Date Name Affiliation Comment
Reporter 10-OCT-96 Witkowsky, Dan U.S. Bureau of Mines

Beyond USGS

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