Results 51 to 60 of about 16,487 (268)

Marine‐Calibrated Chronology of Southern Laurentide Ice Sheet Advance and Retreat: ∼2,000‐Year Cycles Paced by Meltwater–Climate Feedback

open access: yesGeophysical Research Letters, 2023
Climatic warming following the Last Glacial Maximum caused the southern Laurentide Ice Sheet (LIS) to begin ∼2,000‐year cycles of retreat and readvance whose cause remains ambiguous.
Andrew D. Wickert   +7 more
doaj   +1 more source

The impact of Holocene deglaciation and glacial dynamics on the landscapes and geomorphology of Potter Peninsula, King George Island (Isla 25 Mayo), NW Antarctic Peninsula

open access: yesFrontiers in Earth Science, 2023
The timing and impact of deglaciation and Holocene readvances on the terrestrial continental margins of the Antarctic Peninsula (AP) have been well-studied but are still debated.
Pablo A. Heredia Barión   +20 more
doaj   +1 more source

Retreat of the Western Cordilleran Ice Sheet Margin During the Last Deglaciation

open access: yesGeophysical Research Letters, 2018
The timing of Cordilleran Ice Sheet deglaciation along the central coast of British Columbia, Canada, informs climate forcing and early human migration.
C. Darvill   +4 more
semanticscholar   +1 more source

Shoreline and deglaciation chronology in southeast Norway

open access: yesBoreas, EarlyView.
The postglacial relative sea level history is reconstructed in four areas of mid‐ and inner Oslofjorden in southeast Norway. The reconstructions are based on radiocarbon‐dated raised shoreline levels from 42 sites, mainly isolation basins, and limiting ages from four lakes above the marine limit.
Anders Romundset   +6 more
wiley   +1 more source

Early Holocene jökulhlaup chronology and deglaciation dynamics in central Iceland

open access: yesBoreas, EarlyView.
Glacial lake outburst floods (jökulhlaups) have occurred throughout the Quaternary in glaciated regions worldwide. Reconstructing flood chronology yields insight into deglaciation processes, environmental change and the role of extreme events in landscape evolution.
Greta H. Wells   +4 more
wiley   +1 more source

A North Greenland‐wide in situ cosmogenic 14C ice sheet chronology since the Lateglacial

open access: yesBoreas, EarlyView.
Knowledge of the glacial history of the North Greenland Ice Sheet is crucial due to its high sensitivity to climate change. However, because the ice sheet in this region is predominantly cold‐based, resulting in low erosion rates, using 10Be exposure dating to establish reliable ice sheet chronologies has proven very challenging due to nuclide ...
Anne Sofie Søndergaard   +8 more
wiley   +1 more source

Reconstruct Antarctic deglacial temperature

open access: yes, 2021
First commit for review.
He, Chengfei, Zhengyu Liu
openaire   +1 more source

Late‐Holocene evolution of a small Sub‐Arctic glacier, Gljúfurárjökull (Tröllaskagi, northern Iceland)

open access: yesBoreas, EarlyView.
Gljúfurárjökull, located on the Tröllaskagi Peninsula in northern Iceland, is a small glacier approximately 3.8 km in length. This study analyses the glacier's evolution through a combination of methods including: (i) geomorphological mapping, (ii) Cosmic‐Ray Exposure (CRE) dating, (iii) lichenometry and (iv) palaeoglacier reconstruction (volume ...
Nuria Andrés   +14 more
wiley   +1 more source

Deglaciation of the North Cascade Range, Washington and British Columbia, from the Last Glacial Maximum to the Holocene

open access: yesCuadernos de Investigación Geográfica, 2017
Glacial retreat from the North Cascade Range after the Last Glacial Maximum (LGM) at approximately 21 ka until the end of the Pleistocene at 11.6 ka was complex and included both continental and alpine glaciers.
J.L. Riedel
doaj   +1 more source

A tropical mechanism for Northern Hemisphere deglaciation [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2003
We investigate the role of the tropics in the melting and reforming of the Laurentide ice sheet on glacial timescales using an atmospheric general circulation model. It is found that warming of tropical sea surface temperatures (SSTs) from glacial boundary conditions, as observed at the end of glacial periods, causes a large increase in summer ...
Rodgers, K.   +4 more
openaire   +5 more sources

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