Open-File Report 2002-002

SHIP:	R/V Atlantic Twin
CRUISE:	AT-84
CORE:	LISAT-7
LENGTH RECOVERED:	370 cm
PENETRATION:	16'
NUMBER OF SECTIONS:	2
LOCATION:	central Long Island Sound
LATITUDE:	41o 08.38' N
LONGITUDE:	72o 05.61' W
LORAN:	26570.1, 43998.5
COMMENTS:	Seismic line for this core is Line AT#6 (sparker). This lines runs from 1341-1357 hrs. Core into outwash (site II-2 on uniboom record line 6, at 1142, UCONN 84-1). Section 1 - surface scrapped perpendicular to long axis on working half; sections 1B and 2A in same D-tube; section 2B - clay/sand contact at top of section.
PENTROMETER RECORD:	Very rapid 0-10'; moderate 11,12,13,14', very slow 15'-end
0-150 cm (Section 1A) -	Dark olive gray, 5Y 3/2, clayey silt and very fine sand, with less than 5% medium sand, occasional pieces of gravel, shells and shell fragments up to 1 cm in width, scattered zones of fine and medium sand; 30-38 cm: sandy silt (15% sand, 71% silt, 14% clay).
150-180 cm (Section 1B) -	Dark olive gray, 5Y 3/2 clayey silt with some very fine sand, a pebble at 167 cm and zones of fine to medium sand and silt.
180-260 cm (Section 2A) -	Dark olive gray, 5Y 3/2 sediments getting increasingly coarser toward medium to coarse sand, turbidites (?), scattered pebbles.
260-370 cm (Section 2B) -	260-265 cm: dark olive gray, 5Y3/2, silty clay and fine sand with lenses of coars sand, medium sand, and silt, sharp lower contact. 265-370 cm: Sand, well sorted, varying textures from fine sand to medium sand, textural layering apparent that corresponds to slight variations in color (dark - 7.5YR 3/2; light - 7.5 YR 4/2).

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
URL: http://pubsdata.usgs.gov/pubs/of/2002/0002/htmldocs/mms84/descr/lisat7.htm
Page Contact Information: GS Pubs Web Contact
Page Last Modified: Monday, 22-Apr-2024 16:24:05 EDT