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  3. Mineral Resource Data System (MRDS)

Marine Mining

Prospect in United Kingdom with commodity Tin
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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. Ownership information
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10133867
MAS/MILS ID 4120100039
Record type Site
Current site name Marine Mining

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -5.38108, 50.23237 (WGS84)

Site location context

Political divisions (FIPS codes)

United Kingdom(country)

Europe(continent)

Land(continent)

Geographic areas

Country
United Kingdom

Commodities

Commodity Importance
Tin Critical Primary

Materials information

Materials Type of material
Cassiterite Unknown

Nearby scientific data

Ore Body (1) -5.38108, 50.23237
ListMap

Economic information

Ore body information

  • Thickness 1.3M
    Length 8000M
    Width 800M
    Depth to top 0M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 PLACER
    Shape of Orebody #1 TABULAR
    Primary mode of Origin RESIDUAL CONCENT
    Secondary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Minimum Depth to Top 0
    Date of Last Modification 861010

Comments on the geologic information

  • THE ALLUVIAL TIN OFF THE NORTH CORNWALL COAST HAS BEEN DERIVED FROM BOTH RIVER-DUMPED OLD MINE WASTE AND FROM THE NATURAL EROSION OF MINERAL VEINS EXPOSED ON THE SEA-CLIFFS AND SEA BOTTOM.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant Yes
Mining method Dredging
Milling method Gravity

Ownership information

  • Type Owner-Operator
    Owner Marine Mining (Cornwall) Consortium
    Interest 100
    Year 1983

Comments on the production information

  • AN ESTIMATED SMELTING COST OF $543.47 AND A $1.08 MILLING COST PER TONNE WILL BE INCURRED IN THE PRODUCTION OF PRODUCT A.

Comments on the reserve resource information

  • 20,000,000 MT ESTIMATED RESOUCES IN 1989.
  • THIS PROPERTY WAS ACQUIRED BY GEEVOR IN 1986; IT IS STILL BEING INVESTIGATED AS A POTENTIAL PRODUCER. PROPOSED OFFSHORE DREDGING PROPOSED OFFF THE NORTH CORNISH COAST BECAUSE OF MARKET UNCERTAINTIES, PLANT CONSTRUCTION HAS BEEN DEFFERED.

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method DREDGING
    Avg. Overburden Thickness 0
    Hardness of Ore SAND, SILT
    Capacity 3000
    Capacity Units MT ORE/DAY
    Unit Production Cost 1.67
    Units of Production $/MT ORE
    Operating Days per Year 330
    Operating Shifts per Day 3
    Year of Information 1983

Comments on other economic factors

  • THE COSTS AND CAPACITIES LISTED ARE FOR THE YEAR 1985 WHEN THIS PROPERTY IS ESTIMATED TO BEGIN PRODUCTION.
  • TIN CONCENTRATES WILL BE SHIPPED IN BULK TO COPPER PASS SMELTER/REFINERY, AN RTZ SUBSIDIARY NEAR HULL.
  • THE TIN GRADE IS ESTIMATED AT .015 WT%.
  • TOTAL MATERIAL DREDGED WILL BE 1,000,000 METRIC TONS WITH ONE HALF OF THAT MATERIAL (+48 MESH) BEING RETURNED TO THE SEA AND THE FINER GRAIN (-48 MESH) PORTION BEING PUMPED TO THE PRECONCENTRATING PLANT.

Reference information

Bibliographic references

  • Deposit

    MINING WEEK MINING JOURNAL, U.K.: GREEN LIGHT FOR OFFSHORE

  • Deposit

    TIN DREDGING, OCTOBER, 1982.

  • Deposit

    MINING MAGAZINE, MARINE MINING, NOVEMBER, 1982.

  • Deposit

    MARSH, P., SHAFT OF LIGHT FOR BRITAIN'S TIN MINES, NEW

  • Deposit

    SCIENTIST, APRIL, 1983.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-SEP-1992 Sabin, A. E. 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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