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Microscopic Fluorite Occurrence No. Ek-031

Occurrence in Fairfield county in Connecticut, United States with commodity Fluorine-Fluorite
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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. Host and associated rocks
  8. Nearby scientific data
  9. Controls for ore emplacement
  10. Economic information about the deposit and operations
  11. Mining district
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10068186
MRDS ID W001133
Record type Site
Current site name Microscopic Fluorite Occurrence No. Ek-031

Geographic coordinates

Geographic coordinates: -73.17954, 41.26193 (WGS84)

Site location context

Political divisions (FIPS codes)

Fairfield(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Long Hill(quadrangle 1:24,000 scale)

Bridgeport(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Saugatuck(hydrologic unit)

Connecticut Coastal(hydrologic accounting unit)

Connecticut Coastal(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Connecticut Fairfield

Commodities

Commodity Importance
Fluorine-Fluorite Critical Tertiary

Comments on the commodity information

  • INFORMATION LACKING. MICROSCOPIC FLUORITE COMMON IN MEDIUM GRAINED GRANITIC PLUTON. PLUTON ABOUT 1.5 MILES LONG NORTH TO SOUTH, ONE MILE WIDE EAST TO WEST

Materials information

Materials Type of material
Fluorite Ore
Apatite Gangue
Epidote Gangue
Magnetite Gangue
Microcline Gangue
Muscovite Gangue
Plagioclase Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Early Devonian
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -73.17954, 41.26193
ListMap

Economic information

Controls for ore emplacement

  • Intrusive Granitic Pluton

Comments on the geologic information

  • GEOL.DESC: MAJOR NE. TRENDING STRUCTURAL ZONE THAT NORTHWARD FORMS WEST WALL OF CONN. TRIASSIC BASIN; NATURAL GAMMA RADIOACTIVITY HIGH OF 1300 COUNTS PER SECOND, HIGHEST IN WESTERN CONN.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Mining district

District name Trumbull

Comments on the reserve resource information

  • INFORMATION LACKING. LARGE VOLUME OF ROCK WITH VERY MINOR AMOUNTS OF FLUORITE, NEEDS STUDY; MODAL ANALYSES IN VOLUME PERCENT FOR FLUORITE IS 0.4.

Workings at the site

  • Type of workings Unknown
    Overall length 2413.95M
    Overall width 1609.3M

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    CROWLEY, W. P., 1968, "BEDROCK GEOL. LONG HILL QUAD.", CONN. GEOLOGICAL SURVEY, QUAD REPORT NO. 24, MAP, TEXT, PG. 52, 53, 54

  • Reserve-Resource

    CROWLEY, 1968

General comments

Subject category Comment text
Deposit CROWLEY'S MAP AT 1:125000 LOCATES OCCURRENCE BY SYMBOL. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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.

Maps centered on this site