Core JR157-GC005 (Marguerite Trough, mid-shelf area of mega-scale glacial lineations)
Associated publications
| Title | Author(s) | Publication | DOI | View cores |
|---|---|---|---|---|
| Ice-stream retreat and ice-shelf history in Marguerite Trough, Antarctic Peninsula: Sedimentological and foraminiferal signatures | Kilfeather, Aoibheann A and Cofaigh, Colm {\'O} and Lloyd, Jerry M and Dowdeswell, Julian A and Xu, Sheng and Moreton, Steven G | Bulletin, 2011 | https://doi.org/10.1130/B30282.1 |
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| Reconstruction of ice-sheet changes in the Antarctic Peninsula since the Last Glacial Maximum | Cofaigh, Colm {\'O} and Davies, Bethan J and Livingstone, Stephen J and Smith, James A and Johnson, Joanne S and Hocking, Emma P and Hodgson, Dominic A and Anderson, John B and Bentley, Michael J and Canals, Miquel and others | Quaternary Science Reviews, 2014 | https://doi.org/10.1016/j.quascirev.2014.06.023 |
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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 |
|---|---|---|---|---|---|---|---|---|---|
| JR157-GC005 | Antarctica, Antarctic Peninsula | None | Gravity | -67.50824 | -70.60978 | 744.0 | 4.03 | Lithology from Figure 3, depths approximate; Lithology from Figure 3, depths approximate; Lithology from Figure 3, depths approximate; Lithology from Figure 3, depths approximate; Lithology from Figure 3, depths approximate |
Expedition information
| Expedition name | Ship | Start date | End date | Report DOI |
|---|---|---|---|---|
| JR157 | RRS James Clark Ross | Jan. 20, 2007 | Feb. 4, 2007 | https://www.bodc.ac.uk/resources/inventories/cruise_inventory/report/7924/ |
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 |
|---|---|---|---|---|---|---|---|---|---|
| SUERC-20981 | 1.38 - 1.4 | Gray (5Y4/1 or 5Y5/1) to olive gray (5Y5/2), mostly massive pebbly mud with some crudely defined concentrations of pebble in bands or clusters. Some bioturbation. Infrequent diatoms. Increased foraminifera abuncance (102-409 planktic and 333-673 benthic individuals). | Ice-shelf disintegration to an open-marine environment with ice-rafted debris. | Planktic foraminifera (Neogloboquadrina pachyderma) | Carbonate hydrolysis | 12590.0 ± 43.0 | 12796.0 | 13179.0-12418.0 | None |
| SUERC-21175 | 0.945 - 0.99 | Gray (5Y4/1 or 5Y5/1) to olive gray (5Y5/2), mostly massive pebbly mud with some crudely defined concentrations of pebble in bands or clusters. Some bioturbation. Infrequent diatoms. Increased foraminifera abuncance (102-409 planktic and 333-673 benthic individuals). | Ice-shelf disintegration to an open-marine environment with ice-rafted debris. | Planktic foraminifera (Neogloboquadrina pachyderma) | Carbonate hydrolysis | 9540.0 ± 81.0 | 8782.0 | 9301.0-8310.0 | None |
| SUERC-23756 | 1.53 - 1.6 | Gray (5Y4/1 or 5Y5/1) mud. Diatoms absent. Massive to poorly stratified toward the base, bioturbated. Slightly higher abundance of foraminifera compared to unit below (90-611 planktic and 59-249 benthic individuals). | Meltwater-derived and/or tidal pumping-derived suspension settling close to the grounding line | Planktic foraminifera (Neogloboquadrina pachyderma) | Carbonate hydrolysis | 13390.0 ± 56.0 | 13612.0 | 14084.0-13155.0 | None |
Associated documents
No associated documents.