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Long Point Dome

Past Producer in Fort Bend county in Texas, United States with commodity Sulfur
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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. 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 10251722
MRDS ID TC34016
MAS/MILS ID 0481570001
Record type Site
Current site name Long Point Dome
Alternate or previous names Long Point Dome Sulfur Plant
Related records 10061164

Geographic coordinates

Point of reference Plant
Geographic coordinates: -95.72105, 29.47525 (WGS84)
Elevation 22
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Fort Bend(county)

Texas(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Smithers Lake(quadrangle 1:24,000 scale)

Angleton(quadrangle 1:100,000 scale)

Houston(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Brazos(hydrologic unit)

Lower Brazos(hydrologic accounting unit)

Lower Brazos(hydrologic subregion)

Texas-Gulf(hydrologic region)

Geographic areas

Country State County
United States Texas Fort Bend

Commodities

Commodity Importance
Sulfur Primary

Materials information

Materials Type of material
Anhydrite Unknown
Gypsum Unknown
Halite Unknown
Pyrite Unknown
Sulfur Unknown

Nearby scientific data

Plant (1) -95.72105, 29.47525
ListMap

Economic information

Ore body information

  • Area 518HA
    Depth to top 518M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 DISSEMINATED
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin EVAPORATION
    Secondary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Secondary Ore Control OTHER
    Avg. Thick. Unconsol. Mat. 167
    Total Surface Area (HA) 518
    Date of Last Modification 960624

Comments on the geologic information

  • UNSPECIFIED ROCKS ARE UNCONSOLIDATED SEDIMENTS
  • SULFUR OCCURS IN EVAPORITES AND LIMESTONE ON THE TOP AND FLANKS OF A SALT DOME. THE SULFUR WAS PROBABLY FORMED BY HYDROCARBON REDUCTION OF ANYDRITE ASSISTED BY BACTERIAL ACTIONS.

Economic information about the deposit and operations

Operation type Well
Development status Past Producer
Commodity type Non-metallic
Significant Yes
Discovery year 1924
Mining method Auger Mining - Frasch Process
Year of first production 1930

Mining district

District name Gulf Coast

Mineral rights holdings

Type of mineral rights Private Lease

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Potash Corp. Of Saskatchewan
    Interest 100
    Home office Canada
    Year 1996
    First year 1996
  • Type Owner
    Owner Texasgulf Inc. (Affiliate Of Elf Aquitaine, Inc.)
    Interest 50
    Home office Connecticut
    Year 1982
    First year 1982
    Last year 1996
  • Type Owner-Operator
    Owner Jefferson Lake Sulphur Co. Div., Occidental Chemical Co.
    Interest 50
    Home office Texas
    Year 1982
    First year 1982
    Last year 1996

Production statistics

  • Year 1967
    Period 1930-1967
    Description Cumulative Production 1930-Jan 1 1968 5218000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 5218000mt
  • Year 1968
    Description 289000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 289000mt
  • Year 1969
    Description 281000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 281000mt
  • Year 1970
    Description 295000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 295000mt
  • Year 1971
    Description 296000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 296000mt
  • Year 1972
    Description 318000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 318000mt
  • Year 1973
    Description 326000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 326000mt
  • Year 1974
    Description 324000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 324000mt
  • Year 1975
    Description 195000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 195000mt
  • Year 1976
    Description 253000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 253000mt
  • Year 1977
    Description 220000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 220000mt
  • Year 1978
    Description 192000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 192000mt
  • Year 1979
    Description 211000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 211000mt
  • Year 1980
    Description 211000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 211000mt
  • Year 1981
    Description 128000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 128000mt
  • Year 1982
    Description 112000 Metric Tons
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Sulfur Sulfur 112000mt

Comments on the production information

  • THE MINE WAS SHUT DOWN FOR AN INDEFINITE TIME, ON NOVEMBER 5, 1982, BECAUSE OF INCREASING PRODUCTION COSTS AND DECLINING RESERVES; LATER, HOWEVER, THE SHUTDOWN WAS MADE PERMANENT.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method FRASCH PROCESS 10-89
    Capacity 382
    Capacity Units MT ORE/DAY
    Unit Production Cost 88.13
    Units of Production $/MT ORE
    Operating Days per Year 365
    Operating Shifts per Day 3
    Year of Information 1982

Comments on other economic factors

  • THE SULFUR IS MINED BY THE FRASCH MINING METHOD WHICH USES SUPERHEATED HOT WATER, STEAM AND COMPRESSED AIR FOR MELTING AND RECOVERING SULFUR IN A LIQUID FORM FROM DEEP WELLS. MANY OF THE DATA FIELDS FOR THE U-SET ARE BLANK BECAUSE THE SULPHUR IS MINED FROM WELLS NOT THROUGH UNDERGROUND WORKINGS.

Reference information

Bibliographic references

  • Ownership

    MINING ENGINEERING, MAY 1995, P407.

  • Deposit

    ELLISON, JR., SULPHUR IN TEXAS, BUREAU OF ECONOMIC GEOLOGY,

  • Deposit

    HANDBOOK NO. 2, JANUARY 1971, 48PP.

  • Deposit

    ESPENSHADE, G.H. AND BROEDEL, C.H., 1952, ANNOTATED

  • Deposit

    BIBLIOGRAPHY AND INDEX MAP OF SULPHUR AND PYRITE DEPOSITS

  • Deposit

    IN THE UNITED STATES AND ALASKA: U.S. GEOLOGICAL SURVEY INF CIR

  • Deposit

    157, 48PP.

  • Deposit

    NETZEBAND, F.F., EARLY, T.R., RYAN J.P. AND MILLER, W.C.,

  • Deposit

    1964, SULPHUR RESOURCES AND PRODUCTION IN TEXAS, LOUISIANA

  • Deposit

    MISSOURI, OKLAHOMA, ARKANSAS, KANSAS AND MISSISSIPPI, AND

  • Deposit

    MARKETS FOR THE SULPHUR: U.S. BUREAU OF MINES INF CIRC. 8222,

  • Deposit

    77PP.

  • Deposit

    MCGOWEN, J.H. AND OTHERS, 1976, ENVIRONMENTAL GEOLOGIC ATLAS

  • Deposit

    OF THE TEXAS COASTAL ZONE--BAY CITY-FREEPORT AREA: UNIV.

  • Deposit

    TEXAS, AUSTIN, BUR ECON GEOLOGY, 98P, 9MAPS.

  • Deposit

    HAWKINS, M.E. AND C.J. JIRIK. SALT DOMES IN TEXAS, LOUIS-

  • Deposit

    IANA, MISSISSIPPI, ALABAMA, AND OFFSHORE TIDELANDS: A

  • Deposit

    SURVEY. U.S. BUMINES I.C. 8313, 78PP.

  • Deposit

    HAYNES, W. BRIMSTONE, THE STONE THAT BURNS. D VAN NOSTRAND

  • Deposit

    CO., NEW YORK, N.Y., 1959, 308PP.

  • Deposit

    U.S. BUREAU OF MINES. MICROFILM COMPILATION OF CONFIDENTIAL

  • Deposit

    INDIVIDUAL COMPANY STATISTICS.

  • Deposit

    _____. COMPILATION OF PROPRIETARY, INDIVIDUAL COMPANY,

  • Deposit

    PRODUCTION STATISTICS (FOR THE YEAR 1982).

  • Deposit

    _____. MINERALS AND MATERIALS: A BIMONTHLY SURVEY, OCTOBER/

  • Deposit

    NOVEMBER 1982, P. 33.

  • Deposit

    KURT LINN, ASSISTANT TO THE PRESIDENT, TEXASGULF INC.;

  • Deposit

    10/15/87 TELEPHONE CONVERSATION WITH LEE OSMONSON.

General comments

Subject category Comment text
Deposit DELETED FORM ADIT, FEB. 1995. MINE IS CLOSED, 1983???.

Reporter information

Type Date Name Affiliation Comment
Reporter 24-JUN-96 Buckingham, David A. 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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