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Gneiss Rock Quarry No. Ek-025

Past Producer in New Haven county in Connecticut, United States with commodity Stone
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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. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10068190
MRDS ID W001138
Record type Site
Current site name Gneiss Rock Quarry No. Ek-025
Related records 10143279

Geographic coordinates

Geographic coordinates: -73.07537, 41.31471 (WGS84)

Site location context

Political divisions (FIPS codes)

New Haven(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ansonia(quadrangle 1:24,000 scale)

Bridgeport(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Housatonic(hydrologic unit)

Connecticut Coastal(hydrologic accounting unit)

Connecticut Coastal(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Connecticut New Haven

Commodities

Commodity Importance
Stone Primary

Comments on the commodity information

  • INFORMATION LACKING. MAINLY INTERLAYERED MEDIUM TO FINE GRAINED SILVERY GRAY TO MEDIUM GRAY MUSCOVITE SCHIST AND SLABBY MEDIUM LIGHT GRAY QUARTZ RICH PARAGNEISS. BEDS MILES LONG, ABOUT 500 FEET THICK; SCHISTOSITY STRIKE N. 30 DEG. EAST, DIP 80 DEG. NW.

Materials information

Materials Type of material
Gneiss Ore
Schist Ore
Biotite Gangue
Garnet Gangue
Muscovite Gangue
Oligoclase 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
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -73.07537, 41.31471
ListMap

Economic information

Ore body information

  • Strike N. 30 DEG. EAST
    Dip 80 DEG. NW.
    Thickness 152.4M
    Length 8046.5M

Controls for ore emplacement

  • Metamorphosed Sedimentary Beds

Comments on the geologic information

  • GEOL.DESC: ACCESSORY MINERALS ARE TOURMALINE, ILMENITE, CHLORITE, RUTILE, APATITE AND ZIRCON.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No
Production years UNKNOWN

Mining district

District name Derby

Comments on the production information

  • INFORMATION LACKING. PRODUCTION OF CONSTRUCTION STONE PROBABLY SMALL.

Comments on the reserve resource information

  • FIGURES LACKING. LARGE VOLUME OF ROCK REMAINS BUT SITE ADJACENT TO URBAN AREA.

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    FRITTS, C. E., 1965, "BEDROCK GEOL. ANSONIA", USGS, GQ 426, VERY BRIEF TEXT

  • Production

    FRITTS, 1965

General comments

Subject category Comment text
Deposit FRITTS' MAP AT 1:24000 LOCATES QUARRY 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.

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