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Norcross Granite Gneiss Rock Quarries

Past Producer in New Haven county in Connecticut, United States with commodity Stone, Dimension
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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 10068042
MRDS ID W000955
Record type Site
Current site name Norcross Granite Gneiss Rock Quarries
Related records 10240238

Geographic coordinates

Geographic coordinates: -72.74035, 41.2861 (WGS84)

Site location context

Political divisions (FIPS codes)

New Haven(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Guilford(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, Dimension Primary

Comments on the commodity information

  • OPENED 1887, TWO QUARRY SITES; LOWER QUARRY SITE 450 FEET LONG NORTH TO SOUTH, 200 FEET WIDE, AS MUCH AS 65 FEET DEEP. UPPER QUARRY 100 FEET TO NORTH, 500 FEET LONG NORTH TO SOUTH, 100 FEET WIDE, AS MUCH AS 40 FEET DEEP. SHEETS 2 TO 25 FEET THICK, HORIZONTAL OR INCLINED 10 TO 20 DEG. SE. SLIGHT BIOTITIC BANDING STRIKES N. 70 DEG. WEST, DIPS 35 TO 55 DEG. N. 20 DEG. EAST. GRANITE MEDIUM REDDISH GRAY OF MEDIUM TO COARSE, NOT PORPHYRITIC, GNEISSOID TEXTURE. ROCK USED FOR VARIOUS TYPE BUILDINGS. IN 1911, OPERATORS WERE NORCROSS BROS. CO.

Materials information

Materials Type of material
Apatite Gangue
Magnetite Gangue
Microcline Gangue
Muscovite Gangue
Oligoclase Gangue
Orthoclase Gangue
Plagioclase Gangue
Pyrite Gangue
Quartz Gangue
Zircon Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Stratigraphic age (youngest) Late Ordovician

Nearby scientific data

(1) -72.74035, 41.2861
ListMap

Economic information

Ore body information

  • Dip 10 TO 20 DEG. SE.
    Thickness 7.62M

Controls for ore emplacement

  • Granitic Intrusive

Comments on the geologic information

  • GEOL.DESC: THIS AREA OF MONSON GNEISS FORMERLY BRANFORD GRANITE GNEISS. ROCK HAS VERY IRREGULAR TEXTURE, DUE IN PART TO PEGMATITIC INJECTION, FLOW STRUCTURE, GNEISSIC FOLIATION. STRENGTH 22, 447 POUNDS PER SQUARE INCH.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No
Year of first production 1887
Production years 1887 TILL AT LEAST 1911

Mining district

District name Branford

Comments on the production information

  • FIGURES LACKING BUT PRODUCTION OF GOOD BUILDING STONE LARGE.

Comments on the reserve resource information

  • FIGURES LACKING BUT LARGE VOLUME OF ROCK REMAINS.

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    DALE, T. N., 1911, "GRANITES OF CONN.", USGS, BULL. 484, MAP, TEXT, PG. 79 TO 82

  • Production

    DALE, 1911

General comments

Subject category Comment text
Deposit USGS, TOPO, 1968, "GUILFORD", AT 1:24,000, SHOWS QUARRY SITE BY DEPRESSIONS. ANALYSIS IN PERCENT IS SIO2 72.73, AL2O3 AND FEO 16.95, CAO 1.05, MGO TRACE, K2O 8.15, NA2O 0.90, LOSS 0.22, FROM DALE, 1911, PG. 81. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-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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