Results 91 to 100 of about 18,397 (226)

Stable Bacterial Cores and Patchy Eukaryotic Communities Shape the Summer Microbiomes of Patagonian Fjord Ecosystems Across Spatial, Functional and Temporal Gradients [PDF]

open access: yesEnviron Microbiol Rep
Our study shows that microbial community diversity in Patagonian fjords varies with glacial influence and salinity, with a widespread bacterial core but a patchier eukaryotic core. Distinct co‐occurrence networks and marked short‐term community shifts occur in water‑ versus land‐terminating glacier fjords, underscoring meltwater influence in this ...
Trefault N   +5 more
europepmc   +2 more sources

Lodge moraines: a common yet underreported end‐moraine type—a review

open access: yesBoreas, 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

Dispersal, source and glass chemistry of a third tephra unit within Iceland's Settlement Layer

open access: yesBoreas, 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

Pan-Arctic land-ice and tundra meltwater discharge database from 1950 to 2021

open access: yes
A high resolution (daily, 250m) land ice and tundra meltwater discharge dataset for the period 1950-2021 in an easily accessible and storage efficient database covering most of the Arctic and sub-Arctic North Atlantic (SNA) ocean region, i.e.
Igneczi, Adam, Bamber, Jonathan L
core   +1 more source

Tracing freshwater sources and particle discharge in Kongsfjorden: insights from a water isotope approach

open access: yesFrontiers in Marine Science
Arctic fjords are inherently vulnerable to global warming, particularly because of the substantial freshwater influx resulting from the melting of glaciers.
Ling Fang   +4 more
doaj   +1 more source

Truncated drumlins and their implication for past sea level reconstructions

open access: yesBoreas, 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

Meltwater Stonefly( Tumana Lednia)

open access: yes, 2014
A imagem mostra o inseto raro aquático Stonefly, que vive nas regiões alpinas. A perda de geleiras e neve devido ao aquecimento global está colocando esse inseto raro em risco, de acordo com um estudo da Geological Survey/EUA, que além disso aponta que ...
U.S. Geological Survey
core  

Spring Flood Meltwater or Groundwater?

open access: yes, 1981
The environmental isotope oxygen-18 was used as a tracer to separate stream discharge into flows originating from groundwater and fresh meltwater. Two, mainly forested, watersheds (areas 6.6 and 4.0 km2) in southern Sweden were studied during snowmelt ...
Allan Rodhe
core   +1 more source

Interplay of North Atlantic freshening and deep convection during the last deglaciation constrained by Iberian speleothems [PDF]

open access: yesClimate of the Past
The last deglaciation featured abrupt climate shifts driven by interactions among Earth system components, notably retreating ice sheets and meltwater input.
L. Endres   +8 more
doaj   +1 more source

Depositional processes of varved sediments from proglacial Lago Frías since 1800 CE (North Patagonian Andes, Argentina)

open access: yesBoreas, EarlyView.
The glacierized Valle Frías in Northern Patagonia is one of the best‐studied valleys in South America and includes varved sediments from Lago Frías. We complement this lacustrine record with a high‐resolution documentation of varve counts and their composition.
Bernd Zolitschka   +6 more
wiley   +1 more source

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