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Croton-Mc Collum Magnetite Mine

Past Producer in Putnam county in New York, United States with commodities Iron, Copper, 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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10067395
MRDS ID W000140
Record type Site
Current site name Croton-Mc Collum Magnetite Mine
Related records 10199535

Geographic coordinates

Geographic coordinates: -73.65399, 41.36471 (WGS84)
Elevation 152
Relative position 1.2 MILES NORTH OF CROTON FALLS, 0.4 MILES EAST OF CROTON FALLS RESERVOIR.

Site location context

Political divisions (FIPS codes)

Putnam(county)

New York(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Croton Falls(quadrangle 1:24,000 scale)

Bridgeport(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Hudson(hydrologic unit)

Lower Hudson(hydrologic accounting unit)

Lower Hudson-Long Island(hydrologic subregion)

Mid Atlantic(hydrologic region)

Geographic areas

Country State County
United States New York Putnam

Commodities

Commodity Importance
Iron Primary
Copper Tertiary
Sulfur Tertiary

Comments on the commodity information

  • OPEN CUT WITH SHAFT 60 FEET DEEP; WIDTH OF ORE ZONE 100 FEET; ON SOUTH WEST SIDE OF HILL; ADIT 1,400 FEET LONG NORTHWARD THROUGH HILL TO THEALL MINE. RICH ORE BED 10 TO 15 FEET WIDE; STRIKE N 30 DEG. E; DIP VERTICAL.

Materials information

Materials Type of material
Chalcopyrite Ore
Magnetite Ore
Pyrite Ore
Apatite Gangue
Feldspar Gangue
Hornblende Gangue
Mica Gangue
Quartz Gangue

Alteration

  • (Local) Metamorphism Of Rock Units

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Paragneiss
    Rock description Paragneiss
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -73.65399, 41.36471
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Precambrian Uplands ; Reg.Trends: Northeast
Type of structure Local
Structure description Faulted Blocks

Ore body information

  • General form BLANKET
    Strike N 30 DEG. E
    Dip VERTICAL
    Plunge 10 TO 20 DEG
    Plunge direction NE
    Thickness 18.29M
    Length 304.8M
    Width 30.48M
    Depth to top 0M
    Depth to bottom 18.29M

Controls for ore emplacement

  • Iron Rich Precambrian Bed

Comments on the geologic information

  • METAMORPHOSED BEDS WITH MAGNETITE ; MAJOR.UNITS: PARAGNEISSES AND PEGMATITES ; GEOL.DESC: HIGHLY METAMORPHOSED AND FAULTED AREA; COMPLEX GEOLOGY; NUMEROUS THEORIES; SOLID MASSIVE MAGNETITE AND DISSEMINATED MAGNETITE ; REG.COM: METAMORPHOSED, FOLDED, AND FAULTED UPLANDS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Significant No
Discovery year 1843
Discoverer Prospector
Year of first production 1880
Production years ABOUT 1880 - 1889

Mining district

District name Southeast New York

Ownership information

  • Type Operator
    Owner Nipissing Mining Co., Ltd.
    Home office Toronto, Canada
  • Type Owner
    Owner Croton Magnetic Iron Mines Co.

Comments on the production information

  • PRODUCTION UNKNOWN BUT LARGE; FE 43.22 TO 59.83%; PHOSPHOROUS 0.035 TO 0.26%; CU 0.07%; S 1.5%; ESTIMATED OVER 100,000 TONS OF ORE MINED

Comments on the reserve resource information

  • 8.5 MILLION TONS WHEN ADDED TO ADJACENT CROTON - THEALL MAGNETITE MINE
  • NO FIGURES AVAILABLE, PROBABLY VERY LARGE LOW GRADE ORE POTENTIAL
  • NO PRODUCTION OF LOW GRADE; SEVERAL MILLION TONS LOW GRADE ORE PRESENT

Workings at the site

  • Type of workings Underground
    Length 304.8M
    Overall depth 18.29M

Comments on the workings information

  • ADIT DRIFT EXTENDS 1400 FEET TO NORTHEAST THROUGH HILL TO EXIT AT CROTON - THEALL MINE OPENING

Comments on development

  • ECON.COM: EARLY IRON DISTRICT, 1734 - 1900, IRON ORE USED IN LOCAL MARKET

Reference information

Bibliographic references

  • Deposit

    SMOCK, J.C., 1889, "IRON MINES OF NEW YORK", N.Y.S. MUSEUM BULL. 7, MAP, TEXT, PG 21

  • Deposit

    COLONY, R.J., 1921, "MAGNETITE DEPOSITS SE. NEW YORK", N.Y.S. MUSEUM BULL. 249, MAP, TEXT, PG 118-120

  • Deposit

    NEWLAND, D.H., 1919, "MINERAL RESOURCES OF NEW YORK", N.Y.S. MUSEUM BULL. 223, TEXT, PG. 125

  • Deposit

    1889 RECON NEW YORK STATE GEOLOGICAL SURVEY

  • Deposit

    1942 DIREXPL BETHLEHEM STEEL COMPANY, DRILL CORE, PROVE RESERVES

  • Production

    SMOCK; 1889

  • Reserve-Resource

    SMOCK, 1889

General comments

Subject category Comment text
Deposit USGS TOPO MAP, 1960, "CROTON FALLS, N.Y.", 1:24,000, ADIT SYMBOL FOR MINE. ; INFO.SRC : 1 PUB LIT
Deposit MOST DEVELOPMENT AT ADJACENT CROTON - THEALL MINE; TOTAL MINERALIZATION LENGTH 5500 FEET

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1972 D'Agostino, John P. U.S. Geological Survey

Beyond USGS

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

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