Results 51 to 60 of about 203 (161)

Sediment Characteristics and Architecture of Triangular‐Shaped Murtoos: A Test of Murtoo Formation Hypotheses

Earth Surface Processes and Landforms, Volume 51, Issue 9, September 2026.
Murtoos and murtooized terrains are new types of subglacial landforms found in the Fennoscandian Ice Sheet (FIS) and Cordilleran Ice Sheet (CIS) regions. LiDAR‐based morphometric analyses have revealed substantial morphometric diversity among murtoos and murtoo‐related landforms, while sedimentological excavations have documented a wide range of ...
A. E. K. Ojala, S. Soini, J. Mäkinen, J. Hovikoski, P. Sarala, A. Hepburn, K. Kajuutti, E. Ahokangas, J. Kautto   +8 more
wiley   +1 more source

Deep Learning Models for Mapping Surficial Geology in Selected Physiographic Regions of New York

Earth Surface Processes and Landforms, Volume 51, Issue 9, September 2026.
Deep learning models provide a faster, less resource‐intensive approach to mapping surficial materials. Though not a replacement for traditional mapping, the models and framework developed here can enhance the speed, consistency and quality of surficial geologic mapping when trained with high‐quality data, especially in glaciated terrain.
Joshua C. Woda, Jason Finkelstein, William E. Odom, John H. Williams   +3 more
wiley   +1 more source

Early deglaciation history of the southeastern Baffin Island shelf (Eastern Canadian Arctic Archipelago)

Journal of Quaternary Science, Volume 41, Issue 5, Page 686-701, July 2026.
ABSTRACT During the last glacial period, the Laurentide Ice Sheet (LIS) was the largest terrestrial ice sheet on Earth. Its evolution since the Last Glacial Maximum profoundly influenced Earth's geodynamics and surface processes. Investigating the past dynamics of the LIS provides critical insights into how contemporary ice sheets may respond to ...
Alexis P. Belko, Alexandre Normandeau, Patrick Lajeunesse, Audrey Limoges   +3 more
wiley   +1 more source

De Geer moraine internal architecture based on sedimentological and geophysical investigations and implications for ice‐marginal reconstructions

Boreas
De Geer moraines (DGMs) may act as valuable ice margin indicators; however, to date, their variable mode of formation has presented challenges for this utility.
Gwyneth E. Rivers, Robert D. Storrar, Antti E. K. Ojala, Joni Mäkinen, Camilla Holmroos, Naomi Holmes   +5 more
doaj   +1 more source

Insights into glacial processes from micromorphology of silt-sized sediment [PDF]

The Cryosphere
Silt-rich meltwater plume deposits (MPDs) analyzed from marine sediment cores have elucidated relationships that are clearly connected, yet difficult to constrain, between subglacial hydrology, ice-marginal landforms, and grounding-zone retreat patterns ...
A. P. Lepp, L. E. Miller, J. B. Anderson, M. O'Regan, M. C. M. Winsborrow, J. A. Smith, C.-D. Hillenbrand, J. S. Wellner, L. O. Prothro, E. A. Podolskiy   +9 more
doaj   +1 more source

Retrogressive Thaw Slump Morphology and Dynamics in Saline Permafrost in Northeast Greenland

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 7, July 2026.
Abstract Saline permafrost occupies a significant portion of permafrost in the Northern Hemisphere and extends several kilometers inland from the present Arctic coastline. However, its thermal conditions, mechanical degradation and geomorphological impacts are poorly understood.
S. Eppinger, T. H. Lorentzen, M. Angelopoulos, T. Ingeman‐Nielsen, D. A. Rudd, M. Marcer, M. Krautblatter   +6 more
wiley   +1 more source

Scientific history, sampling approach, and physical characterization of the Camp Century subglacial material, a rare archive from beneath the Greenland Ice Sheet [PDF]

The Cryosphere
Basal materials in ice cores hold information about paleoclimate conditions, glacial processes, and the timing of past ice-free intervals, all of which aid understanding of ice sheet stability and its contribution to sea level rise in a warming climate ...
P. R. Bierman, P. R. Bierman, A. J. Christ, A. J. Christ, C. M. Collins, C. M. Collins, H. M. Mastro, H. M. Mastro, J. Souza, J. Souza, P.-H. Blard, P.-H. Blard, S. Brachfeld, Z. R. Courville, T. M. Rittenour, E. K. Thomas, J.-L. Tison, F. Fripiat   +17 more
doaj   +1 more source

Dynamic Deglacial Evolution of Interior Seaways and Ice Streams in the Weddell Sea Embayment

Paleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract Improving our understanding of Antarctic glacial dynamics is essential for accurately predicting ice sheet behavior and its contribution to global sea level rise under future climate scenarios. The Weddell Sea Embayment, which channels ice from East Antarctica, West Antarctica, and the Antarctic Peninsula into the Filchner‐Ronne Ice Shelf, is ...
M. R. Bollen, M. Gutjahr, P. Blaser, C. E. Ginnane, J. P. Klages, J. Müller, J. C. Turnbull, S. L. Jaccard   +7 more
wiley   +1 more source

Koroška Bela alluvial fan – The result of the catastrophic slope events; (Karavanke Mountains, NW Slovenia)

Geologija, 2008
The Koroška Bela alluvial fan deposits were investigated to determine the genesis of the fan and the source area of sediments. The alluvial fan is composed of a sequence of diamicton layers, and related subaeric sediments that were deposited by multiple ...
Jernej Jež, Matjaž Mikoš, Mirka Trajanova, Špela Kumelj, Tomaž Budkovič, Miloš Bavec   +5 more
doaj  

Revised classification of glaciofluvial landforms in the Finnish sector of the Fennoscandian Ice Sheet

Boreas, Volume 55, Issue 3, Page 702-716, July 2026.
Effective and sustainable land use, conservation, and the use of geological resources (incl. raw materials, aggregates and groundwater) require a clear classification system of sedimentary units, with well‐defined vocabulary and unified mapping practices.
Jussi Hovikoski, Jukka‐Pekka Palmu, Tapio Väänänen, Markus Valkama, Antti E. K. Ojala, Satu Putkinen, Reijo Pitkäranta   +6 more
wiley   +1 more source