Laurentide Ice Sheet extent over the last 130 thousand years traced by the Pb isotope signature of weathering inputs to the Labrador Sea

Autor: Rebecca L. Parker, Gavin L. Foster, Marcus Gutjahr, Paul A. Wilson, Kate L. Littler, Matthew J. Cooper, Agnes Michalik, James A. Milton, Kirsty C. Crocket, Ian Bailey

Highlights • We present LGC record of the Pb isotope composition Labrador Sea seawater. • These data can be used to track Laurentide Ice Sheet extent over Hudson Bay. • LIS retreat during the PGM was relatively fast compared to the LGM • The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a88589d3d5200c23efd519da0384f996
https://eprints.soton.ac.uk/457733/

Weathering fluxes and sediment provenance on the SW Scottish shelf during the last deglaciation

Autor: Chris D. Clark, Steve Moreton, Kirsty C. Crocket, S. Louise Callard, Derek Fabel, John A. Howe, G. M. Nowell, Sara Benetti, Riccardo Arosio

Publikováno v: Elsevier, pp. 81-98
Marine Geology (0025-3227) (Elsevier Science Bv), 2018-08, Vol. 402, P. 81-98

The reconstruction of past ice sheet dynamics can shed a light on long-term ice stream activity, and in turn provide constraints on the response of modern ice sheets to climate change. The Hebrides Ice Stream (HIS) flowed across part of the western S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b780d0af4a06ed2d2bc7063956b01e66
https://doi.org/10.1016/j.margeo.2017.08.017

Neodymium isotope analyses after combined extraction of actinide and lanthanide elements from seawater and deep-sea coral aragonite

Autor: Tina van de Flierdt, Jess F. Adkins, S.K.V. Hines, Laura F. Robinson, Maureen E. Auro, Katharina Kreissig, Louisa I Bradtmiller, Myriam Lambelet, Barry J. Coles, Kirsty C. Crocket, Torben Struve

Publikováno v: Geochemistry, Geophysics, Geosystems. 17:232-240

Isotopes of the actinide elements protactinium (Pa), thorium (Th), and uranium (U), and the lanthanide element neodymium (Nd) are often used as complementary tracers of modern and past oceanic processes. The extraction of such elements from low abund

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca350ab658f2d22616262a26a0f18820
https://doi.org/10.1002/2015gc006130

Dynamic intermediate ocean circulation in the North Atlantic during Heinrich Stadial 1: A radiocarbon and neodymium isotope perspective

Autor: David J. Wilson, Laura F. Robinson, Tina van de Flierdt, Kirsty C. Crocket, Jess F. Adkins

Publikováno v: Paleoceanography. 29:1072-1093

The last deglaciation was characterised by a series of millennial scale climate events that have been linked to deep ocean variability. While often implied in interpretations, few direct constraints exist on circulation changes at mid-depths. Here we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8108e0da245b2cac28c831385e0c778f
https://doi.org/10.1002/2014pa002674

A Pb isotope tracer of ocean-ice sheet interaction: the record from the NE Atlantic during the Last Glacial/Interglacial cycle

Autor: Derek Vance, Martyn Tranter, Kirsty C. Crocket, David Richards, Gavin L. Foster

Publikováno v: Crocket, K, Foster, G, Vance, D, Richards, D & Tranter, M 2013, ' A Pb isotope tracer of ocean-ice sheet interaction: the record from the NE Atlantic during the Last Glacial/Interglacial cycle ', Quaternary Science Reviews, vol. 82, pp. 133-144 . https://doi.org/10.1016/j.quascirev.2013.10.020

Ice sheet-ocean interactions are both a response to climate forcing and a source of climate feedback, releasing freshwater to the surface ocean and influencing climate and atmospheric CO2 through changes in ocean circulation. Documenting the outcomes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7475c1c8bd78f839d6cb75cf73d8447
https://doi.org/10.1016/j.quascirev.2013.10.020