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

Cebada

Producer in Guanajuato, Mexico with commodities Gold, Silver
Map
XML
JSON
KML
B
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. Ownership information
  11. Production statistics
  12. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10157973
MAS/MILS ID 2010170023
Record type Site
Current site name Cebada
Alternate or previous names Cebada Unit

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -101.25868, 21.03805 (WGS84)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Guanajuato

Commodities

Commodity Importance
Gold Secondary
Silver Primary

Materials information

Materials Type of material
Acanthite Unknown
Chalcopyrite Unknown
Electrum Unknown
Galena Unknown
Gold Unknown
Pyrite Unknown
Silver Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) -101.25868, 21.03805
ListMap

Economic information

Ore body information

  • Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 STOCKWORK
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. UNKNOWN
    Date of Last Modification 790713

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Negociacion Minera Santa Lucia, S. A. De C. V.
    Home office Mexico
    Year 1979
  • Type Owner
    Owner Lacana Mining Corp.
    Interest 33
    Home office Mexico
    Year 1979
  • Type Owner
    Owner Minera Mexicana Penoles
    Interest 33
    Home office Mexico
    Year 1979
  • Type Owner
    Owner Compania Fresnillo S. A.
    Interest 37
    Home office Mexico
    Year 1979

Production statistics

  • Year 1976
    Description 32,115 Tonnes Of Ore Mined And Milled
  • Year 1977
    Description 40,344 Tonnes Of Ore Mined And Milled

Reserves and resources

  • Type In-situ
    Estimate year 1979
    Measured 172000mt ore
    Demonstrated 172000mt ore
    Total resources 172000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 491.4 g/mt Silver Major 1979
    Gold Au 4.66 g/mt Gold Minor 1979

Workings at the site

  • Type of workings Underground
    Overall depth 420M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method ASCENDING CROSSCUTS 10-64A
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Number of Shafts 2
    1st Condition of Workings OPEN
    Capacity 200
    Capacity Units MT ORE/DAY
    Unit Production Cost 11.13
    Units of Production $/MT ORE
    Year of Information 1977

Comments on other economic factors

  • RECOVERY OF A HIGH PROPORTION OF THE GOLD AND SILVER CONTENT OF THE ORE (95% AND 90% RESPECTIVELY) IS ACHEIVED BY A RELATIVELY SIMPLE FLOTATION PROCESS TO SEPARATE METALLIC SULPHIDES. SOME NATIVE SILVER IS LOST, BUT THE NATIVE GOLD SEPARATES WITH THE PYRITE. THE PLANT HAS A MAXIMUM CAPACITY OF 2,400 TONNE/DAY WITH AN INPUT FEED RATE OF 183 TONNE/HOUR MAXIMUM. ORE FROM THE SATELLITE MINES IS DELIVERED BY TRUCK TO 3 450 TONNE BINS, WHILE THE ORE FROM THE TORRES-CEDROS MINE GUANAJUATO SHAFT DISCHARGES DIRECTLY INTO 2 600 TONNE BINS, FEEDERS BELOW EACH OF THE BINS DISCHARGE ONTO BELT CONVEYERS: THE FEED RATES OF BOTH THE SATELLITE MINE ORE AND THE TORRES-CEDROS ORE ARE MEASURED FOR CONTROL PURPOSES BY BELT WEIGHERS. THE NOMINAL INPUT FEED SIZE IS MINUS 15 CM. THE CRUSHING CIRCUIT CONSISTS OF A SYMONS STANDARD 5.5 FT. DIAMETER CONE CRUSHER FOLLOWED BY A PAIR OF PARALLEL 16 FT. LONG BY 6 FT. WIDE ALLIS-CHALMERS VIBRATORY SCREENS PASSING 1.3 CM. OVERSIZE IS RECRUSHED IN A 5.5 FT. SHORT-HEAD CONE CRUSHER IN CLOSED CIRCUIT. THE PRODUCT FROM THE CRUSHING/SCREENING CIRCUIT IS 48% MINUS 0.95 CM. THE CRUSHED ORE IS WEIGHED AND SAMPLED BEFORE PASSING TO SIX 550 TONNE CAPACITY MILL FEED BINS BIA A JOY TRAVELLING TRIPPER: THIS STORAGE ALLOWS ABOUT ONE AND ONE-HALF DAYS MILL OPERATION IF INPUT FROM THE MINES ARE DISRUPTED. ORE IS DRAWN FROM THE MILL FEED BINS AT A CONTROLLED RATE AND IS GROUND IN A NORDBERG BALL MILL, 19.5 FT. LONG BY 15 FT. DIAMETER, TO 27% MINUS 200 MESH. FOUR KREBS D20B CYCLONES SEPARATE OVERSIZE UNDERFLOW AND RETURN IT FOR REGRINDING: THE FINAL PRODUCT IS 63% MINUS 200 MESH. THE FLOTATION FEED PULP IS STORED IN A DISTRIBUTOR BEFORE BEING TREATED IN A BANK OF 5 AGITAIR 12A PRIMARY ROUGHER CELLS AND THEN A BANK OF 5 SIMILAR SECONDARY CELLS. THE TAILINGS FROM THESE CELLS ARE PUMPED TO A CIRCUIT OF FOUR CYCLONES TO REMOVE SAND FOR USE AS BACKFILL IN THE MINE. THE OVERFLOW FROM THESE CYCLONES PASSES TO A 150 FT DIAMETER BY 15 FT. THICKENER. THE OVERFLOW FROM THIS IS PIPED TO MILL WATER CONTROL AND SUPPLY TANKS, WHILE THE UNDERFLOW IS PUMPED TO A TAILINGS DAM AT LA CORONELA, A NEARBY VALLEY SITE. THE CONCENTRATE OBTAINED FROM THE ROUGHER FLOTATION CELLS IS THICKENED IN A 40 FT. DIAMETER BY 8 FT. TANK AND THEN REGROUND IN A 5 FT. BY 8.5 FT. ALLIS-CHALMERS BALL MILL, WITH TWO D10B CYCLONES IN CLOSED CIRCUIT, TO PROVIDE A PRODUCT 98% MINUS 200 MESH. THIS IS TREATED IN A BANK OF 12 DENVER DR-21 CLEANER CELLS; THE CONCENTRATE FROM THESE IS RECLEANED IN A BANK OF 8 DENVER 18-SP CELLS. THE TAILINGS FROM THE RE-CLEANERS ARE RETURNED TO JOIN THE FEED FROM THE REGRIND CYCLONES TO THE FIRST RECLEANER BANK, WHILE THE CONCENTRATE IS PUMPED TO A 25 FT DIAMETER BY 8 FT. HIGH THICKENER. THE UNDERFLOW FROM THIS IS PUMPED VIA TWO D4B CYCLONES TO AN EIMCO 6 FT. DIAMETER FOUR DISC FILTER, FROM WHICH THE FILTER CAKE DROPS DIRECTLY THROUGH A GRID OF BARS INTO A LOCKED STORAGE BASEMENT. FROM THIS IT IS LOADED INTO LOCKED TRANSPORT TRUCKS FOR CARRIAGE TO THE INDUSTRIAS PENOLES SA SMELTER AT TORREON, COAHUILA.

Reference information

Bibliographic references

  • Reserve-Resource

    MINING MAGAZINE, FEBRVARY 1979, P. 121: SILBER MINING AT

  • Reserve-Resource

    LAS TORRES

  • Deposit

    MINING MAGAZINE, 1976, P. 497.

  • Deposit

    STAFF, INTERNATIONAL DIRECTORY OF MINING AND MINERAL

  • Deposit

    PROCESSING OPERATIONS, MCGRAW-HILL, NEW YORK, 1976,

  • Deposit

    P. 258.

  • Deposit

    PROCESSING OPERATIONS, MCGRAW-HILL, NEW YORK, 1978,

  • Deposit

    P. 317

  • Deposit

    THE WORLD-WIDE DIRECTORY OF MINING AND MINERAL PROCESSING

  • Deposit

    OPERATIONS, 1976-77, P. 118.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-AUG-1992 Peterson, Gary R. U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site