Core DF87-14 (Outer shelf break between north Pennell and Iselin Banks, possible mass flow processes present)
Associated publications
| Title | Author(s) | Publication | DOI | View cores |
|---|---|---|---|---|
| Late Cenozoic glacial-marine, carbonate, and turbidite sedimentation in the northwestern Ross Sea, Antarctica | Reid, David Eugene | , 1989 | https://www.proquest.com/docview/194016843/fulltextPDF/306796DA039B49D7PQ/1?accountid=25386&sourcetype=Dissertations%20&%20Theses |
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Core information
| Core name | Region | Collection date | IGSN ID | Core type | Latitude (DD) | Longitude (DD) | Water depth (m) |
Core length (m) |
Comments |
|---|---|---|---|---|---|---|---|---|---|
| DF87-14 | Antarctica, Ross Sea | None | Piston | -72.97283 | -179.89250 | 658.0 | 1.79 | Coarse ash abundant throughout; sand and ash content inccreases with depth; layer of ash bearing foraminiferal ooze, light olive gray (5Y 5/2), between 31-35 cm; slightly bioturbated between 39-44 cm and 70-78cm; highly disturbed between 0-13 cm; moderately disturbed between 19-21 cm; gradational contact. ; Coarse ash abundant; fine to medium subangular to subrounded pebbles of various compositions sparsely scattered throughout; very fine angular to subroinded pebbles of various compositions common throughout; ;ayer of foraminiferal sany, olive gray (5Y 4/1) between 104-115 cm, sand is fine, well sorted, upper and lower contacts are sharp and inclined; inclined laminae of foraminiferal ooze, yellowish gray (5Y 7/2), between 103-104 cm; slightly disturbed between 131-133 cm; sharp contact.; Moderate olive brown (5Y 4/4); sand is fine, well sorted; coarse ash abundant throughout; very fine subangular to subrounded pebbles of various compositions common throughout; 8 cm sedimentary clast composed of mud and sandy mud, grayish olive (10Y 4/2); moderately bioturbated between 147-158 cm.; Reported as >35,410 14C yrs BP |
Expedition information
| Expedition name | Ship | Start date | End date | Report DOI |
|---|---|---|---|---|
| DF87 | USCGC Glacier | Dec. 17, 1986 | Jan. 16, 1987 | https://osu-mgr.org/OSU-DF87 |
Samples in this core
| Sample ID | Core depth (m) |
Lithology | Facies interpretation | Carbon type | Sample preparation type | Age (14C yr ± 1σ) | Calibrated age, median probability (cal. yr BP) | Calibrated age, 2σ range (cal. yr BP) | Comments |
|---|---|---|---|---|---|---|---|---|---|
| DF87-14_5-9 | 0.05 - 0.09 | Foraminiferal ooze | Carbonate sedimentation during LGM, low clastic sedimentation, high nutrient supply, seasonal open marine during LGM, east to west increase in current strength, winnowed and current swept seafloor | Foraminifera (mostly N. pachyderma, some benthics), barnacle fragments | Carbonate hydrolysis | 35410.0 ± None | Calibrated age for default reservoir correction not available | Calibrated age for default reservoir correction not available | None |
Associated documents
No associated documents.