The reconstruction of the British-Irish Ice Sheet (BIIS) dynamics from deep-water sediments on the NW Irish continental margin: The reconstruction of the British-Irish Ice Sheet (BIIS) dynamics from deep-water sediments on the NW Irish continental margin

Serena Tarlati, S. Benetti, P Dunlop, Aggeliki Georgiopoulou, Robin Edwards

Research output: Contribution to conferenceAbstract

Abstract

The British-Irish Ice Sheet (BIIS) was a partially marine-based, dynamic ice-sheet that during its last extension in the Late Quaternary followed sub- milankovitch climatic oscillations. In deep-water these advance and retreat events are displayed by changes in the sedimentation styles. Presence of Ice Rafted Debris (IRD) and mass transport deposits such as turbidites are typical of cold intervals, whereas hemipelagites and contourites are deposited during warm periods.
Three different depositional systems are part of this research, the Rockall Trough, the Donegal-Barra fan and three channels on the Irish continental shelf.
Lithofacies based on sedimentological identification, physical properties and X-rays, together with abundance of Neogloboquadrina pachyderma left coiling and IRD concentration are the methodologies used. Isotopic analysis is being carried out on core CE10008-20A from the Rockall Trough for reconstruction of paleotemperature and paleoproductivity. Grain size analysis is being used to reconstruct paleocurrents and quantify their speed. Two radiocarbon dates, in collaboration with the BRITICE-Chrono consortium, allow the addition of a preliminary chronostratigraphy.

The results obtained will allow the correlation of the three different environments and will be used to reconstruct and chronologically constrain the variability of the BIIS in this specific deep-water sector. Particular interest will be focused on grain size analysis and the possible role of the BIIS in the North Atlantic Oceanic Circulation.

Conference

ConferenceIrish Quaternary Association
Abbreviated titleIQUA
CountryUnited Kingdom
CityColeraine
Period9/04/169/04/16

Fingerprint

ice sheet
continental margin
deep water
ice-rafted debris
sediment
trough
grain size
contourite
paleoproductivity
paleocurrent
chronostratigraphy
oceanic circulation
isotopic analysis
paleotemperature
mass transport
lithofacies
continental shelf
physical property
oscillation
sedimentation

Keywords

  • British Irish Ice Sheet

Cite this

@conference{132d6b3b4f5b48aab6a6039c44f7b646,
title = "The reconstruction of the British-Irish Ice Sheet (BIIS) dynamics from deep-water sediments on the NW Irish continental margin: The reconstruction of the British-Irish Ice Sheet (BIIS) dynamics from deep-water sediments on the NW Irish continental margin",
abstract = "The British-Irish Ice Sheet (BIIS) was a partially marine-based, dynamic ice-sheet that during its last extension in the Late Quaternary followed sub- milankovitch climatic oscillations. In deep-water these advance and retreat events are displayed by changes in the sedimentation styles. Presence of Ice Rafted Debris (IRD) and mass transport deposits such as turbidites are typical of cold intervals, whereas hemipelagites and contourites are deposited during warm periods.Three different depositional systems are part of this research, the Rockall Trough, the Donegal-Barra fan and three channels on the Irish continental shelf.Lithofacies based on sedimentological identification, physical properties and X-rays, together with abundance of Neogloboquadrina pachyderma left coiling and IRD concentration are the methodologies used. Isotopic analysis is being carried out on core CE10008-20A from the Rockall Trough for reconstruction of paleotemperature and paleoproductivity. Grain size analysis is being used to reconstruct paleocurrents and quantify their speed. Two radiocarbon dates, in collaboration with the BRITICE-Chrono consortium, allow the addition of a preliminary chronostratigraphy.The results obtained will allow the correlation of the three different environments and will be used to reconstruct and chronologically constrain the variability of the BIIS in this specific deep-water sector. Particular interest will be focused on grain size analysis and the possible role of the BIIS in the North Atlantic Oceanic Circulation.",
keywords = "British Irish Ice Sheet",
author = "Serena Tarlati and S. Benetti and P Dunlop and Aggeliki Georgiopoulou and Robin Edwards",
year = "2016",
month = "4",
day = "9",
language = "English",
note = "Irish Quaternary Association : Spring Meeting, IQUA ; Conference date: 09-04-2016 Through 09-04-2016",

}

The reconstruction of the British-Irish Ice Sheet (BIIS) dynamics from deep-water sediments on the NW Irish continental margin : The reconstruction of the British-Irish Ice Sheet (BIIS) dynamics from deep-water sediments on the NW Irish continental margin. / Tarlati, Serena; Benetti, S.; Dunlop, P; Georgiopoulou, Aggeliki; Edwards, Robin.

2016. Abstract from Irish Quaternary Association, Coleraine, United Kingdom.

Research output: Contribution to conferenceAbstract

TY - CONF

T1 - The reconstruction of the British-Irish Ice Sheet (BIIS) dynamics from deep-water sediments on the NW Irish continental margin

T2 - The reconstruction of the British-Irish Ice Sheet (BIIS) dynamics from deep-water sediments on the NW Irish continental margin

AU - Tarlati, Serena

AU - Benetti, S.

AU - Dunlop, P

AU - Georgiopoulou, Aggeliki

AU - Edwards, Robin

PY - 2016/4/9

Y1 - 2016/4/9

N2 - The British-Irish Ice Sheet (BIIS) was a partially marine-based, dynamic ice-sheet that during its last extension in the Late Quaternary followed sub- milankovitch climatic oscillations. In deep-water these advance and retreat events are displayed by changes in the sedimentation styles. Presence of Ice Rafted Debris (IRD) and mass transport deposits such as turbidites are typical of cold intervals, whereas hemipelagites and contourites are deposited during warm periods.Three different depositional systems are part of this research, the Rockall Trough, the Donegal-Barra fan and three channels on the Irish continental shelf.Lithofacies based on sedimentological identification, physical properties and X-rays, together with abundance of Neogloboquadrina pachyderma left coiling and IRD concentration are the methodologies used. Isotopic analysis is being carried out on core CE10008-20A from the Rockall Trough for reconstruction of paleotemperature and paleoproductivity. Grain size analysis is being used to reconstruct paleocurrents and quantify their speed. Two radiocarbon dates, in collaboration with the BRITICE-Chrono consortium, allow the addition of a preliminary chronostratigraphy.The results obtained will allow the correlation of the three different environments and will be used to reconstruct and chronologically constrain the variability of the BIIS in this specific deep-water sector. Particular interest will be focused on grain size analysis and the possible role of the BIIS in the North Atlantic Oceanic Circulation.

AB - The British-Irish Ice Sheet (BIIS) was a partially marine-based, dynamic ice-sheet that during its last extension in the Late Quaternary followed sub- milankovitch climatic oscillations. In deep-water these advance and retreat events are displayed by changes in the sedimentation styles. Presence of Ice Rafted Debris (IRD) and mass transport deposits such as turbidites are typical of cold intervals, whereas hemipelagites and contourites are deposited during warm periods.Three different depositional systems are part of this research, the Rockall Trough, the Donegal-Barra fan and three channels on the Irish continental shelf.Lithofacies based on sedimentological identification, physical properties and X-rays, together with abundance of Neogloboquadrina pachyderma left coiling and IRD concentration are the methodologies used. Isotopic analysis is being carried out on core CE10008-20A from the Rockall Trough for reconstruction of paleotemperature and paleoproductivity. Grain size analysis is being used to reconstruct paleocurrents and quantify their speed. Two radiocarbon dates, in collaboration with the BRITICE-Chrono consortium, allow the addition of a preliminary chronostratigraphy.The results obtained will allow the correlation of the three different environments and will be used to reconstruct and chronologically constrain the variability of the BIIS in this specific deep-water sector. Particular interest will be focused on grain size analysis and the possible role of the BIIS in the North Atlantic Oceanic Circulation.

KW - British Irish Ice Sheet

UR - http://iqua.ie/iqua-2016-spring-meeting/

M3 - Abstract

ER -