Results 81 to 90 of about 7,208 (230)

How Sediment Supply, Sea‐Level, and Glacial Isostatic Oscillations Drive Alluvial River Long‐Profile Evolution and Terrace Formation

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract For over a century, alluvial river terraces have been used as archives of tectonic deformation or changes in water discharge, sediment supply, and sea level. Despite this long history, such efforts remain challenging: using terraces as deformation markers requires knowledge of their initial geometry, and most attempts to attribute terrace ...
A. Ruby, F. McNab, T. F. Schildgen, A. D. Wickert, V. M. Fernandes   +4 more
wiley   +1 more source

Comparing the Weathering Environment of Permian and Modern Antarctic Proglacial Lake Sediments: Mineralogical and Geochemical Study [PDF]

, 2017
The Antarctic continent has been in a polar to subpolar position since the Permian period. Although it has experienced milder climates over this time period as evidenced by corals in the fossil record, Antarctica did undergo extensive glaciation during ...
Brewster, Shelby
core  

Toward Numerical Modeling of Interactions Between Ice-Marginal Proglacial Lakes and Glaciers

Frontiers in Earth Science, 2020
Global climate change is evidently manifest in disappearing mountain glaciers and receding and thinning ice sheet margins. Concern about contemporaneous proglacial lake development has spurred an emerging area of research seeking to quantitatively ...
Jonathan L. Carrivick, Fiona S. Tweed, Jenna L. Sutherland, Joseph Mallalieu, Joseph Mallalieu   +4 more
doaj   +1 more source

Increased Glacier Melt Across Millennia to Hours Enhances Erosion and Sediment Export Processes

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.
Abstract Glacial erosion and sediment evacuation are key in shaping polar and mountain landscapes and influencing downstream ecological and social systems. The glacier dynamics and hydrology responsible for these processes are closely linked to hydrological and climatic (hydro‐climatic) conditions.
Ian Delaney, Audrey Margirier, Marjolein Gevers, Matt Jenkin, Tancrède Leger, Ivan Vergara, Julien Seguinot, Guillaume Jouvet, Alan Robert Alexander Aitken, Stuart Lane, Frédéric Herman, Georgina E. King   +11 more
wiley   +1 more source

Short-term variability in Greenland Ice Sheet motion forced by time-varying meltwater inputs: implications for the relationship between subglacial drainage system behavior and ice velocity. [PDF]

, 2012
High resolution measurements of ice motion along a -120 km transect in a land-terminating section of the GrIS reveal short-term velocity variations (
Anderson, Andrew Sole, Bamber, Bartholomaus, Bartholomew, Bartholomew, Bartholomew, Bingham, Campbell, Catania, Clarke, Clarke, Cutler, Das, Douglas Mair, Fountain, Herring, Hewitt, Hock, Hooke, Hubbard, Hubbard, Ian Bartholomew, Iken, Iken, Iken, Iken, Joughin, Kamb, Kamb, Kamb, Mair, Matt A. King, Meehl, Nienow, Nienow, Nienow, Palmer, Parizek, Parizek, Paterson, Peter Nienow, Pimentel, Price, Raymond, Röthlisberger, Röthlisberger, Schoof, Shampine, Shepherd, Shreve, Sundal, Thomas Cowton, Van de Wal, Van de Wal, Walder, Zwally   +56 more
core   +4 more sources

Ice-Dammed Lake Drainage Evolution at Russell Glacier, West Greenland

Frontiers in Earth Science, 2017
KEY POINTS/HIGHLIGHTSTwo rapid ice-dammed lake drainage events gauged and ice dam geometry measured.A melt enlargement model is developed to examine the evolution of drainage mechanism(s).Lake temperature dominated conduit melt enlargement and we ...
Jonathan L. Carrivick, Fiona S. Tweed, Felix Ng, Duncan J. Quincey, Joseph Mallalieu, Thomas Ingeman-Nielsen, Andreas B. Mikkelsen, Steven J. Palmer, Jacob C. Yde, Rachel Homer, Andrew J. Russell, Alun Hubbard   +11 more
doaj   +1 more source

Ice-margin and meltwater dynamics during the mid-Holocene in the Kangerlussuaq area of west Greenland [PDF]

, 2017
Land-terminating parts of the west Greenland ice sheet have exhibited highly dynamic meltwater regimes over the last few decades including episodes of extremely intense runoff driven by ice surface ablation, ponding of meltwater in an increasing number ...
Adam, Aebly, Anderson, Andrews, Bartholomew, Brennand, Burke, Carrivick, Carrivick, Carrivick, Carrivick, Carrivick, Clark, De Geer, Donner, Dyke, Eisner, Evans, Evans, Fitzpatrick, Forman, Gool, Graham, Greenwood, Greenwood, Hambrey, Harper, Humlum, Ingólfsson, Kleman, Kleman, Kleman, Knight, Lee, Levy, Lindén, Livingstone, Lloyd, Long, Long, Lovell, Margold, Margold, Mernild, Mernild, Morlighem, Nitsche, Noormets, Ozols, Palmer, Pedersen, Perkins, Phillips, Rinterknecht, Roberts, Russell, Scholz, Sollid, Storms, Storrar, Storrar, Sugden, Syverson, Tatenhove, Ten Brink, Wal, Warren, Wellner, Willemse, Winsborrow, Young, Young   +71 more
core   +2 more sources

The regional evolution of a dryland fluvio‐aeolian and lacustrine succession in response to allocyclic forcing: insights from the Early Permian Cutler Group, Utah, USA

Sedimentology, Volume 73, Issue 2, Page 297-354, February 2026.
ABSTRACT Preserved allocyclic signatures in the rock record often reflect basin‐scale climatic variability and serve as key proxies for correlating ancient dryland successions. The notion of climate cyclicity, however, remains largely untested on regionally constrained, outcrop‐calibrated studies.
Oliver Button, Jack G. Connor, Ross P. Pettigrew, Ben A. Kilhams, John A. Howell   +4 more
wiley   +1 more source

'Calving laws', 'sliding laws' and the stability of tidewater glaciers [PDF]

, 2007
A new calving criterion is introduced, which predicts calving where the depth of surface crevasses equals ice height above sea level. Crevasse depth is calculated from strain rates, and terminus position and calving rate are therefore functions of ice ...
Brown, Douglas I. Benn, Nicholas R.J. Hulton, Raymond, Ruth H. Mottram, Van der Veen   +5 more
core   +1 more source

Environmental Controls on the Cycling of Fe and Mn in Patagonian Fjord Systems

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 1, January 2026.
Abstract Fjord sediments are important reservoirs and conduits of potentially bioavailable iron (Fe) and manganese (Mn). Both elements are critical to life, serving as key reactants in metabolic pathways, and play an important role in the reactivity and burial of organic carbon.
L. Piret, J. R. Hawkings, L. Hopf, D. McCabe   +3 more
wiley   +1 more source