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Rex Orebody

Prospect in Iron county in Utah, United States with commodity Iron
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  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 10155318
MRDS ID D005499
MAS/MILS ID 0490210043
Record type Site
Current site name Rex Orebody
Alternate or previous names Rex, Milner Hill Orebody
Related records 10090118, 10275808

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -113.3991, 37.63357 (WGS84)
Elevation 2019
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Iron(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Silver Peak(quadrangle 1:24,000 scale)

Cedar City(quadrangle 1:100,000 scale)

Cedar City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Escalante Desert(hydrologic unit)

Escalante Desert-Sevier Lake(hydrologic accounting unit)

Escalante Desert-Sevier Lake(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Utah Iron

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 036 S 014 W 27 SESESE Utah

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Apatite Unknown
Calcite Unknown
Magnetite Unknown
Pyrite Unknown
Quartz Unknown
Siderite Unknown

Nearby scientific data

Ore Body (1) -113.3991, 37.63357
ListMap

Economic information

Ore body information

  • Thickness 54M
    Length 1050M
    Width 600M
    Depth to top 168M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 TABULAR
    Primary mode of Origin CONT METASOMATIC
    Primary Ore Control CONTACT ZONE
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 CARBONATE SILIC
    Minimum Depth to Top 150
    Avg. Thick. Unconsol. Mat. 1
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 820201
  • Area 305HA
    Field Value
    Total Surface Area (HA) 305
    Date of Last Modification 910418

Comments on the geologic information

  • THE EXACT STRIKE AND DIP ARE NOT KNOWN. THE ORE BODY STRIKES GENERALLY NORTH-SOUTH AND HAS A SHALLOW DIP TO THE WEST.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Large
Significant Yes
Discovery year 1945
Mining method Open Pit
Milling method Sizing

Mining district

District name Pinto Iron

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Geneva Steel Corp.
    Interest 100
    Home office P. O. Box 2500, Provo, Ut 84603
    Year 1993

Comments on the production information

  • CONCENTRATE PRODUCED IS ESTIMATED AT 65.0% FE WITH 90% RECOVERY, 52.5% FE FEED GRADE, AND 18536.5 MTPD OUTPUT. IN THE PELLETIZING PLANT, 126.12 MTPD BENTONITE IS ADDED, THEREBY REDUCING THE PELLET GRADE TO 64.56% FE. RECOVERY IN THE PELLETIZING PLANT IS ASSUMED TO BE 100% WITH A FEED RATE OF 18536.5 MTPD AND AN OUTPUT OF 18663 MTPD PELLETS. OVERALL RECOVERY IS 90%.

Comments on the reserve resource information

  • THIS ORE BODY IS ESTIMATED TO CONTAIN RESERVES OF BETWEEN 100 TO 200 MILLION TONS OF IRON ORE AND, PROBABLY THE LARGEST RESOURCE REMAINING IN THE AREA. SUBSTITUTED FOR IRON SPRINGS BY MODIFICATION #1.

Workings at the site

  • Type of workings Surface
    Area 125HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .65
    Percent Waste Rock 61.6
    Avg. Overburden Thickness 168
    Primary Material Cover M-HARD ROCKS
    Percentage 100
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 11
    Max. Pit Slope (degrees) 60
    Capacity 25500
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 45241
    Unit Production Cost 3.14
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 3
    Year of Information 1981

Comments on the workings information

  • WATER SUPPLY - WATER WOULD PROBABLY HAVE TO BE OBTAINED FROM THE ESCALANTE VALLEY TO THE WEST. SOME WATER MIGHT BE OBTAINED FROM FLOODED PITS NEARBY.

Comments on other economic factors

  • ALL EXPLORATION WAS COMPLETED IN 1957.

Reference information

Bibliographic references

  • Reserve-Resource

    BULLOCK, K.C., 1970, (REVISED 1976), IRON DEPOSITS OF UTAH:

  • Reserve-Resource

    UTAH GEOL. AND MINER. SURVEY BULL. 88, P. 51.

  • Reserve-Resource

    VOL. 20, PART 1, BRIGHAM YOUNG UNIV., P. 53.

  • Deposit

    BULLOCK, K.C., 1970 (REVISED 1976), IRON DEPOSITS OF UTAH:

  • Deposit

    UTAH GEOL. AND MINER. SURVEY BULL. 98, P. 42-43, 53.

  • Deposit

    BULLOCK, K.C., 1973, GEOLOGY AND IRON DEPOSITS OF IRON

  • Deposit

    SPRINGS DISTRICT, IRON COUNTY, UTAH: GEOLOGY STUDIES,

  • Deposit

    VOL. 20, PART 1, BRIGHAM YOUNG UNIV., 63 P.

  • Deposit

    MACKIN, J.H., 1968, IRON ORE DEPOSITS OF THE IRON SPRINGS

  • Deposit

    DISTRICT, SOUTHWESTERN UTAH: IN ORE DEPOSITS OF THE

  • Deposit

    UNITED STATES, 1933-1967, TWO VOLS., J.D. RIDGE, ED.,

  • Deposit

    A.I.M.E., P. 992-1019.

  • Deposit

    ROHLFING, D.P., 1923, IRON-ORE DEPOSITS OF SOUTHERN UTAH:

  • Deposit

    ENG. AND MIN. JOUR. PRESS, VOL. 115, NO. 16, P. 716-719.

  • Deposit

    UNKNOWN AUTHOR, 1974, UTAH'S IRON SPRINGS DISTRICT IS A

  • Deposit

    MAJOR WESTERN RESOURCE: ENGINEERING/MINING JOUR., NOV.

  • Deposit

    1974, P. 152-153.

  • Deposit

    REEVES, R.G., 1964, IRON: IN MINERAL AND WATER RESOURCES

  • Deposit

    OF UTAH: UTAH GEOL. AND MINER. SURVEY BULL. 73, P. 89-96.

  • Deposit

    UNKNOWN AUTHOR, 1980, UTAH REPORT (COMPANY PUBLICATION,

  • Deposit

    CF&I STEEL CORP.), OCT./NOV. 1980, P. 1-4.

  • Deposit

    BULLOCK, K.C., 1981, MINERALS AND MINERAL LOCALITIES OF

  • Deposit

    UTAH: UTAH GEOL. AND MINER. SURVEY BULL. 117, P. 17.

  • Deposit

    GRANGER, A.E., 1963, THE IRON PROVINCE OF SOUTHWESTERN UTAH:

  • Deposit

    UTAH GEOL. AND MINER. SURVEY BULL. 88, P. 51.

  • Deposit

    MOUNTAIN ASSOC. PETROL. GEOL., 12TH ANN. FIELD CONF.

  • Deposit

    GUIDEBOOK, P. 146-150.

  • Deposit

    COOK, K.L., 1950, MAGNETIC SURVEYS IN THE IRON SPRINGS

  • Deposit

    DISTRICT, IRON COUNTY, UTAH: U.S. BUREAU OF MINES REPT.

  • Deposit

    INV. 4586, 78 P.

  • Deposit

    HAYES, C.W., 1909, IRON ORES OF THE UNITED STATES: U.S.

  • Deposit

    GEOLOGICAL SURVEY BULL. 394, P. 101.

  • Deposit

    ERSPAMER, T.R., 1964, MAGNETIC BENEFICIATION - UTAH IRON

  • Deposit

    ORES: SKILLINGS' MINING REVIEW, VOL. 53, NO. 17, APRIL

  • Deposit

    25, 1964, P. 3-5, 18.

  • Deposit

    EMMONS, W.H., 1940, IRON, IRON SPRINGS, UTAH: IN THE

  • Deposit

    PRINCIPLES OF ECONOMIC GEOLOGY, MCGRAW-HILL BOOK CO.,

  • Deposit

    NEW YORK, P. 269-270.

  • Deposit

    ALLSMAN, P.T., 1948, INVESTIGATION OF IRON-ORE RESERVES OF

  • Deposit

    IRON COUNTY, UTAH: U.S. BUREAU OF MINES REPT. INV. 4388, 3 P.

  • Deposit

    BLANK, H.R., AND MACKIN, J.H., 1967, GEOLOGIC INTERPRETA-

  • Deposit

    TION OF AN AEROMAGNETIC SURVEY OF THE IRON SPRINGS

  • Deposit

    DISTRICT, UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER 516-B,

  • Deposit

    P. B12-B13.

  • Deposit

    LEITH, C.K., AND HARDER, E.C., 1908, THE IRON ORES OF THE

  • Deposit

    IRON SPRINGS DISTRICT, SOUTHERN UTAH: U.S. GEOLOGICAL SURVEY

  • Deposit

    BULL. 338, P. 7-9.

  • Deposit

    WELLS, F.G., 1938, THE ORIGIN OF THE IRON ORE DEPOSITS IN

  • Deposit

    THE BULL VALLEY AND IRON SPRINGS DISTRICTS, UTAH: ECON.

  • Deposit

    GEOL., VOL. 33, NO. 5, P. 477-507.

  • Deposit

    JULIHN, C.E., AND MOON, L.B., 1945, SUMMARY OF BUREAU OF

  • Deposit

    MINES EXPLORATION PROJECTS ON DEPOSITS OF RAW MATERIAL

  • Deposit

    RESOURCES FOR STEEL PRODUCTION: U.S. BUREAU OF MINES REPT.

  • Deposit

    INV. 3801, P. 9, 13.

  • Deposit

    PARK, C.F., JR., AND MACDIARMID, R.A., 1964, IGNEOUS META-

  • Deposit

    MORPHIC DEPOSITS, IRON SPRINGS DISTRICT, UTAH: IN ORE

  • Deposit

    DEPOSITS, W.H. FREEMAN AND COMPANY, SAN FRANCISCO, P.

  • Deposit

    280-286.

  • Deposit

    MCARTHUR, C.K., AND PORATH, P.R., 1965, CONCENTRATING IRON

  • Deposit

    ORE IN A MOBILE PLANT: MIN. CONG. JOUR., VOL. 51, NO.

  • Deposit

    10, P. 28-33.

  • Deposit

    JENNINGS, E.P., 1905, ORIGIN OF THE MAGNETIC IRON-ORES OF

  • Deposit

    IRON COUNTY, UTAH: AMER. INST. MIN. MET. ENG. TRANS.

  • Deposit

    VOL. 35, P. 338-342.

  • Deposit

    MACKIN, J.H., 1947, SOME STRUCTURAL FEATURES OF THE INTRU-

  • Deposit

    SIONS IN THE IRON SPRINGS DISTRICT, UTAH: UTAH GEOL.

  • Deposit

    SOC. GUIDEBOOK TO THE GEOLOGY OF UTAH, NO. 2, 62 P.

  • Deposit

    MACKIN, J.H., 1952, CORRESPONDENCE BETWEEN COMPOSITION OF

  • Deposit

    REPLACEMENT IRON ORE AND LIMESTONE IN THE IRON SPRINGS

  • Deposit

    DISTRICT, SOUTHWESTERN UTAH: (ABST.) ECON. GEOL., VOL.

  • Deposit

    47, P. 124.

  • Deposit

    MACVICHIE, DUNCAN, 1927, IRON FIELDS OF THE IRON SPRINGS

  • Deposit

    AND PINTO MINING DISTRICTS, IRON COUNTY, UTAH: AMER.

  • Deposit

    INST. MIN. MET. ENG. TRANS., VOL. 74, P. 163-173.

  • Deposit

    HAMMES, J.K., 1966, THE ECONOMICS OF PRODUCING AND DELIVER-

  • Deposit

    ING IRON ORE PELLETS FROM NORTH AMERICAN TACONITE TYPE

  • Deposit

    RESOURCES: 39TH ANN. MTG. MINNESOTA SECTION A.I.M.E.,

  • Deposit

    P. 11.

  • Deposit

    BENNETT, H.J., MOORE, LYMAN, WELBORN, L.E., AND TOLAND,

  • Deposit

    J.E., 1973, AN ECONOMIC APPRAISAL OF THE SUPPLY OF

  • Deposit

    COPPER FROM PRIMARY DOMESTIC SOURCES: U.S. BUREAU OF MINES

  • Deposit

    INFO. CIRC. 8598, P. 11, 13.

  • Deposit

    BERNSTEIN, N., REUSS, J.L., AND WOOLF, P.L., 1970, AN ECON-

  • Deposit

    OMIC EVALUATION OF THE PRODUCTION AND BLAST FURNACE

  • Deposit

    SMELTING OF PREREDUCED IRON ORE PELLETS: IN U.S. BUR.

  • Deposit

    MINES BULL. 651 (PART 5), P. 43-51.

  • Deposit

    BROWN, MERLE, 1960, THE CLIMATE OF UTAH: IN CLIMATES OF

  • Deposit

    THE STATES, VOLUME II - WESTERN STATES INCLUDING ALASKA

  • Deposit

    AND HAWAII: NOAA, EDS., PORT WASHINGTON, N.Y., WATER

  • Deposit

    INFORMATION CENTER, INC., P. 921-934.

General comments

Subject category Comment text
Deposit THE PLANT CAPACITY WAS 6630000 MTPY.

Reporter information

Type Date Name Affiliation Comment
Reporter 09-MAR-95 Sawyer, Michael B. 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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