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Dolerite Rock Quarry No. Dk-018

Past Producer in New Haven county in Connecticut, United States with commodity Stone, Crushed/Broken
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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 10105482
MRDS ID W000632
Record type Site
Current site name Dolerite Rock Quarry No. Dk-018
Related records 10289433

Geographic coordinates

Geographic coordinates: -72.92231, 41.33971 (WGS84)

Site location context

Political divisions (FIPS codes)

New Haven(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

New Haven(quadrangle 1:24,000 scale)

New Haven(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Quinnipiac(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, Crushed/Broken Primary

Comments on the commodity information

  • INFORMATION LACKING. DOLERITE TOUGH, FINE GRAINED, AND BLACK. TOPO SHOWS QUARRY AS WATER FILLED RESERVOIR ABOUT 400 FEET LONG EAST TO WEST, AND 200 FEET WIDE NORTH TO SOUTH; ON CREST OF RIDGE.

Materials information

Materials Type of material
Diabase Ore
Apatite Gangue
Feldspar Gangue
Magnetite Gangue
Pyroxene Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -72.92231, 41.33971
ListMap

Economic information

Controls for ore emplacement

  • Mafic Extrusive Flows

Comments on the geologic information

  • GEOL.DESC: WEST ROCK DOLERITE FLOWS IN CONN. TRIASSIC BASIN.

Economic information about the deposit and operations

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

Mining district

District name Hamden

Comments on the production information

  • INFORMATION LACKING. SIZE OF PIT INDICATES MODERATE PRODUCTION OF CRUSHED STONE.

Comments on the reserve resource information

  • FIGURES LACKING. LARGE VOLUME OF ROCK REMAINS BUT SITE NOW RESERVOIR IN URBAN AREA.

Workings at the site

  • Type of workings Unknown
    Overall length 121.92M
    Overall width 60.96M

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    GREGORY, H. E., 1906, "GEOL. MAP OF CONN.", CONN. GEOLOGICAL SURVEY, BULL. NO. 7, TEXT

  • Production

    GREGORY, 1906.

General comments

Subject category Comment text
Deposit GREGORY'S MAP AT 1:250000 LOCATES QUARRY BY SYMBOL. USGS, TOPO, 1967, "NEW HAVEN" AT 1:24000 SHOWS QUARRY BY TOPOGRAPHY; NOW SHOWN AS RESERVOIR. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-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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