Results 61 to 70 of about 1,622 (202)
Boreas, EarlyView.Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein +19 more
wiley +1 more source
Antarctic subglacial lakes [PDF]
, 2019 Over 400 lakes exist beneath the Antarctic ice sheet. They range from giant stable lakes at the centre of the ice sheet, isolated from the atmosphere for millions of years, to small through-flow pockets of water beneath fast-flowing ice streams ...
Schroeder, Dustin +9 more
core +1 more source
Lodge moraines: a common yet underreported end‐moraine type—a review
Boreas, EarlyView.Lodge moraines are a distinct genetic type of end moraine formed by submarginal accretion of subglacial till; they are some of the largest end moraines in the world. Although underreported in the literature, they are of equal importance to push, dump and hummocky end moraines. End moraines are formed at glacier ice margins and show the extent of former
Mark D. Johnson +11 more
wiley +1 more source
Deep Clustering in Radar Subglacial Reflector Reveals New Subglacial Lakes
, 2023 Abstract. Ice-penetrating radar (IPR) imaging is a valuable tool for observing the internal structure and bottom of ice sheets. Subglacial water bodies, also known as subglacial lakes, generally appear as distinct, bright, flat, and continuous reflections in IPR images.
Sheng Dong +4 more
openaire +2 more sources
Dispersal, source and glass chemistry of a third tephra unit within Iceland's Settlement Layer
Boreas, EarlyView.Tephra layers may be studied to understand the dynamics and sequence of past explosive volcanism. In Iceland, the distinctive Settlement Layer (AD ~877) underlies almost all archaeological evidence for the Norse Settlement and is preserved in soils across Iceland and as cryptotephra overseas.
Conner A. G. Morison +3 more
wiley +1 more source
Truncated drumlins and their implication for past sea level reconstructions
Boreas, EarlyView.Coastal erosion of glacigenic sediments, particularly in the form of retreating drumlin bluffs, is a key process in paraglacial landscape evolution during periods of relative sea‐level (RSL) rise. As marine transgression reworks formerly subaerial glacial terrains, drumlins act as discrete sediment sources generating characteristic erosional and ...
Riccardo Arosio +3 more
wiley +1 more source
A simplified mechanical model for explaining fast-rising jökulhlaups
Applications in Engineering Science, 2020 The paper describes a simplified mathematical model aimed at fitting available hydrographs of floods from subglacial lakes reaching their peak almost linearly in time, the so-called fast-risingjökulhlaups.
Benedetta Calusi +2 more
doaj +1 more source
Hydrological Processes, Volume 40, Issue 8, August 2026.Land cover and elevation are shown to influence the proportion of stream source waters across glacial and non‐glacial streams. Groundwater makes up a large proportion of both early season and late season flow in most glacial and non‐glacial streams, while the timing of snow and ice melt is driven by the presence or absence of a glacier within the ...
H. K. Richardson +5 more
wiley +1 more source
Models of ice melting and edifice growth during subglacial basaltic eruptions. [PDF]
, 2007 Models of the early stages of basaltic eruptions beneath temperate glaciers are presented that consider the evolving sizes of volcanic edifices emplaced within subglacial cavities.
Tuffen, Hugh
core
Is Vostok lake in steady state? [PDF]
, 2004 Stable-isotope (D and 18O) data from the Vostok (East Antarctica) ice core are used to explore whether or not subglacial Vostok lake is in isotopic steady state. A simple box model shows that the lake is likely to be in steady state on time-scales of the
Royston-Bishop, G +9 more
core +1 more source