The European glacial landscapes prior to the Last Glacial Maximum - synthesis

Hughes, Philip D.; Palacios, David; García‐Ruiz, José María; Andrés, Nuria

doi:10.1016/b978-0-12-823498-3.00009-1

Cited by 1 publication

(2 citation statements)

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“…We follow the BIIS chronology of Hughes et al . (2022) and Clark et al . (2022), the MIS chronology of Lisiecki & Raymo (2005), where evenly numbered MIS correspond to colder periods, and odd numbers indicate warmer periods along with the standardized marine isotope substages naming convention of Railsback et al .…”

Section: Interpretation and Discussionmentioning

confidence: 95%

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British–Irish Ice Sheet and polar front history of the Goban Spur, offshore southwest Ireland over the last 250 000 years

Fabian,

Gallagher,

De Vleeschouwer

2023

Boreas

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Deep Sea Drilling Program (DSDP) Site 548 was cored in 1984 at a water depth of 1256 m on the Goban Spur, offshore southwest Ireland. Coring retrieved a ~100‐m‐thick Pleistocene contourite sequence. This study uses planktonic foraminiferal assemblage and benthic foraminiferal oxygen isotope analyses to establish an age model for the upper 40 m of this core. This site's multidisciplinary analyses of planktonic foraminiferal assemblages, lithic grains, facies and calcium carbonate concentration reveal a 250 000‐year record of the North Atlantic polar front variability and British–Irish Ice Sheet (BIIS) history. The sequence is characterized by alternations of ice rafted debris (IRD) laden pelagic mud facies with calcium carbonate‐rich silty sand contourite facies that track glacial/interglacial cycles. The polar front migrated southward across the area several times during glacial maxima and stadial periods, while warmer Mediterranean Outflow Water (MOW) flowed northward across the region during interglacial and interstadial periods depositing contourites. Lithic analyses reveal a complex history of IRD deposition associated with iceberg calving from the Laurentide Ice Sheet and northwest European ice sheets, mainly the BIIS. Comparison between the Goban Spur (DSDP Site 548) and the Celtic Margin (MD03‐2692) and central North Atlantic Integrated Ocean Drilling Program (IODP) Site U1308 suggests differences between the ‘non‐Laurentide Ice Sheet’ Heinrich Events (HE) 6 and 3 at the Goban Spur, with IRD from the BIIS being prominent during HE 6 and IRD from other European ice sheets north of the BIIS likely being more dominant during HE 3. The nature of lithics in IRD‐rich horizons during Terminations 3, 3A, 2 and 1 suggests significant iceberg calving episodes preceding BIIS retreat during the onset of interstadial intervals.

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Section: Interpretation and Discussionmentioning

confidence: 95%

“…IIS and FSIS LGM ice limits are modified after Hughes et al . (2022). Present‐day and HE 1 (15.9–18.3 ka) North Atlantic polar front position is adapted from Eynaud et al .…”

Section: Figmentioning

confidence: 99%