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Granitic Gneiss Rock Quarry No. Ek-024

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. Controls for ore emplacement
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10068191
MRDS ID W001139
Record type Site
Current site name Granitic Gneiss Rock Quarry No. Ek-024
Related records 10264497

Geographic coordinates

Geographic coordinates: -73.07787, 41.31693 (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. GRANITIC GNEISS COARSE TO MEDIUM GRAINED, WELL FOLIATED AND WELL LINEATED; MAINLY LIGHT GRAY, PORPHYROBLASTIC QUARTZ MONZONITE GNEISS WITH WHITE MICROCLINE PORPHYROBLASTS AS MUCH AS THREE INCHES IN DIAMETER. MASSIVE BODY TRENDS NE.

Materials information

Materials Type of material
Gneiss Ore
Biotite Gangue
Microcline Gangue
Muscovite 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 > Gneiss

Nearby scientific data

(1) -73.07787, 41.31693
ListMap

Economic information

Controls for ore emplacement

  • Metamorphosed Granitic Intrusive

Comments on the geologic information

  • GEOL.DESC: PROSPECT GNEISS BROAD ENTENSIVE ZONE WITH XENOLITHS OF CAMBRIAN ORDOVICIAN SOUTHINGTON MOUNTAIN SCHIST. ACCESSORY MINERALS SPHENE, GARNET, APATITE, ZIRCON, TOURMALINE, ILMENITE, EPIDOTE.

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. PROBABLY ONLY SMALL PRODUCTION OF CONSTRUCTION STONE.

Comments on the reserve resource information

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

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    ARMSTRONG, R. L., 1970, "CONTRI. TO GEOCHRON. CONN.", CONN. GEOLOGICAL SURVEY, R. I. NO. 5, MAP, TEXT, PG. 19 TO 28

  • Production

    FRITTS, 1965.

General comments

Subject category Comment text
Deposit FRITTS' MAP AT 1:24000 LOCATES QUARRY BY SYMBOL. ARMSTRONG CITES DATE OF ABOUT 320 M. Y. FOR PROSPECT GNEISS, MISSISSIPPIAN. ; 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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