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U.S. Geological Survey Open-File Report 02-002
Geological Framework Data from Long Island Sound, 1981-1990:
A Digital Data Release
Visual Core Description: AT88-12
| SHIP: | R/V Atlantic Twin |
| CRUISE: | AT-88 |
| CORE: | AT88-12 |
| LENGTH: | 458 cm |
| DATE OF CORE: | 9/88 |
| DESCRIBED BY: | N. Neff |
| LOCATION: | East of Point Judith, R.I., Rhode Island Sound |
| LATITUDE: | 41o 22.8' N |
| LONGITUDE: | 71o 24.75' W |
| LORAN: | 14437.8, 43959.9 |
| WATER DEPTH (m): | 33 |
| DATE SPLIT: | 3/89 |
| 0 - 375 cm - | Dark olive gray, 5Y 3/2, firm clayey silt. 95 cm and 100 cm: large shell fragments. 115 - 188 cm: mottling; lighter layers and patches 5Y 4/4 olive in color. 188 - 190 cm: discontinuous fine sand layer and 2 cm rounded clast. 213 cm: small gastropod. 275 - 278 cm: shell hash layer. 338 cm: two large shell fragments. 340 - 371 cm: mottling. Gradational lower contact. |
| 375 - 458 cm - | Dark olive gray, 5Y 3/2, firm clayey silt with sand. 392 cm: 2 cm diameter sand patch (round). 400 - 420 cm: scattered black organic material (wood, peat - ). 450 - 458 cm: gravel layer in silt; clasts up to 4 cm, rounded and subangular. Cutter sample: gravel and pebbles. |