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Salter Quartz Monzonite Rock Quarry

Past Producer in New London 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. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10067738
MRDS ID W000565
Record type Site
Current site name Salter Quartz Monzonite Rock Quarry
Related records 10240070

Geographic coordinates

Geographic coordinates: -72.07978, 41.34999 (WGS84)

Site location context

Political divisions (FIPS codes)

New London(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

New London(quadrangle 1:24,000 scale)

New Haven(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Thames(hydrologic unit)

Connecticut Coastal(hydrologic accounting unit)

Connecticut Coastal(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Connecticut New London

Commodities

Commodity Importance
Stone, Dimension Primary

Comments on the commodity information

  • IN 1911 OPERATOR JOHN SALTER AND SONS, OPENED ABOUT 1835. TOPO SHEET SHOWS QUARRY AS ABOUT 800 FEET LONG NE. TO SW., 200 FEET WIDE NW. TO SE., AND 60 FEET DEEP. MONZONITE FORMS APPARENT DIKE, 12 FEET THICK, DIPPING ABOUT 20 DEG. EAST BETWEEN TWO MASSES OF GRAY AND BLACK DIORITE GNEISS. MONZONITE DIKE IN SHEETS 2 TO 12 FEET THICK DIPPING 20 DEG. SW. GNEISS WHICH CAPS MONZONITE IS 10 TO 20 FEET THICK AND IN SHEETS 6 INCHES TO 5 FEET THICK WITH DIP 15 DEG. SOUTH. MONZONITE MEDIUM GREENISH GRAY COLOR, WITH EVEN GRAINED FINE GRANITIC TEXTURE.

Materials information

Materials Type of material
Allanite Gangue
Biotite Gangue
Calcite Gangue
Magnetite Gangue
Microcline Gangue
Muscovite Gangue
Oligoclase Gangue
Orthoclase Gangue
Pyrite Gangue
Quartz Gangue
Rutile Gangue

Analytical data

Result OLIGOCLASE 41.25%, QUARTZ 38.0%, MICROCLINE AND ORTHOCLASE 16.35%, BIOTITE 2.80%, MAGNETITE 1.6%.

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -72.07978, 41.34999
ListMap

Economic information

Ore body information

  • Thickness 3.66M

Controls for ore emplacement

  • Intrusive Granitic Dike

Comments on the geologic information

  • GEOL.DESC: ESTIMATED MINERALS IN PERCENT IN MONZONITE ARE OLIGOCLASE 41.25, QUARTZ 38.0, MICROCLINE AND ORTHOCLASE 16.35, BIOTITE 2.80, MAGNETITE 1.6. DIORITE GNEISS CONSISTS OF QUARTZ, OLIGOCLASE, MICROCLINE, AND HORNBLENDE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No
Year of first production 1835
Production years 1835 TO BEYOND 1911

Mining district

District name Groton

Comments on the production information

  • FIGURES LACKING, MODERATE QUANTITY OF MONUMENT STONE PROBABLY PRODUCED.

Comments on the reserve resource information

  • FIGURES LACKING BUT PROBABLY ONLY SMALL QUANTITY OF MONUMENT STONE AVAILABLE FROM SITE NOW IN URBAN AREA.

Workings at the site

  • Type of workings Unknown
    Overall length 243.84M
    Overall width 60.96M

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    GOLDSMITH, R., 1967, "BEDROCK GEOL. MAP NEW LONDON QUAD.", USGS, GQ 574

  • Production

    DALE, 1911

General comments

Subject category Comment text
Deposit GOLDSMITH'S MAP AT 1:24000 LOCATES QUARRY BY SYMBOL. USGS, TOPO, 1958, "NEW LONDON", AT 1:24000 SHOWS QUARRY SITE BY DEPRESSION. ; 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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