The Idre marginal moraine – An anchorpoint for Middle and Late Weichselian ice sheet chronology
نویسندگان
چکیده
منابع مشابه
Rogen moraine: an example of glacial reshaping of pre-existing landforms
Rogen moraine is widely distributed in the core areas of the former Scandinavian and Laurentide ice sheets. It is generally agreed upon that these gently arched, ice-flow transverse ridges can be used in reconstructions of paleo-ice-flow patterns and that they indicate a melted-bed or poly-thermal basal ice regime. However, the processes of ridge generation have been contentious. This study pro...
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In the north of Ireland ice advanced northwards onto the continental shelf from inland centres of dispersion at the last glacial maximum. We constrain the timing of three subsequent events by accelerator mass spectrometry C dating of marine microfaunas from muds at Corvish, County Donegal. Early and rapid deglaciation of the continental shelf off northwestern Ireland occurred before 17.1 k C ye...
متن کاملMicrostructure through an ice sheet
Ice cores through an ice sheet can be regarded as a sample of a unique natural deformation experiment lasting up to a million years. Compared to other geological materials forming the earth‘s crust, the microstructure is directly accessible over the full depth. Controlled sublimation etching of polished ice sections reveals pores, air bubbles, grain boundaries and subgrain boundaries at the sur...
متن کاملLate Weichselian and Holocene palaeoceanography of Storfjordrenna, southern Svalbard
Multiproxy analyses (including benthic and planktonic foraminifera, δO and δC records, grain-size distribution, ice-rafted debris, XRF geochemistry and magnetic susceptibility) were performed on a C-dated marine sediment core from Storfjordrenna, located off of southern Svalbard. The sediments in the core cover the termination of Bølling–Allerød, the Younger Dryas and the Holocene and reflect g...
متن کاملAge of the Fjord Stade moraines in the Disko Bugt region, western Greenland, and the 9.3 and 8.2ka cooling events
Retreat of the western Greenland Ice Sheet during the early Holocene was interrupted by deposition of the Fjord Stade moraine system. The Fjord Stade moraine system spans several hundred kilometers of western Greenland’s ice-free fringe and represents an important period in the western Greenland Ice Sheet’s deglaciation history, but the origin and timing of moraine deposition remain uncertain. ...
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ژورنال
عنوان ژورنال: Quaternary Science Advances
سال: 2020
ISSN: 2666-0334
DOI: 10.1016/j.qsa.2020.100010