|
|
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: LISAT-1
| SHIP: | R/V Atlantic Twin |
| CRUISE: | AT-84 |
| CORE: | LISAT-1 |
| LENGTH RECOVERED: | 276 cm |
| PENETRATION: | 16' |
| NUMBER OF SECTIONS: | 2 |
| LOCATION: | Stratford Shoal, western Long Island Sound |
| LATITUDE: | 41o 02.9' N |
| LONGITUDE: | 73o 09.35' W |
| LORAN: | 26670.9, 43973.5 |
| COMMENTS: | No seismic record. This is a test core taken near site III-4. Lots of H2S. |
| PENTROMETER RECORD: | Rapid 0-7'; moderate 8,9,10'; very slow 10-16' |
| 0 - 134 cm (Section 1) - | Olive gray, 5Y 4/2, silty sand and sandy silt, zones of each, however does appear to get coarser grained down the core; shell fragments sparse except 103-123 cm. Sharp contact with underlying unit. |
| 134 - 154 cm (Section 2) - | Jumbled; disturbed -settled into a void? |
| 154 - 276 cm (Section 3) - | Dark grayish brown, 2.5Y 4/2, sand. Fine and medium grained in layers and occasional layers of silty sand, colors vary to as light as light yellowish brown, 2.5Y 6/4. 266-276 cm: large area of very dark grayish brown, 2.5Y 3/2 silt; surrounded by sand. No shells; grains coarsen down core. |