Results 51 to 60 of about 7,208 (230)

Morphology and distribution of lakes under the Laurentide Ice Sheet: implications for ice flow dynamics

Boreas, EarlyView.
This study examines the distribution and morphology of lakes under the Laurentide Ice Sheet (LIS) to investigate relationships with ice flow velocity, bedrock and basal thermal regime. Palaeo‐ice streams and lobes were important components of the LIS, and properties of lakes in those regions are quantified at high resolution.
Sarah M. Principato, Carissa M. Mobley
wiley   +1 more source

Reconstructing the confluence zone between Laurentide and Cordilleran ice sheets along the Rocky Mountain Foothills, southwest Alberta [PDF]

, 2016
Landform mapping near the Athabasca valley was fundamental to determining whether the Late Wisconsinan Laurentide and Cordilleran Ice Sheets (LIS, CIS) coalesced. In this paper we examine the detailed landform record using new LiDAR digital elevation and
Andriashek, Atkinson, Atkinson, Banerjee, Barendregt, Bayrock, Bednarski, Benn, Boydell, Boydell, Boydell, Boydell, Briner, Carrivick, Clarhäll, Clark, Clark, Dyke, Dyke, Dyke, Evans, Evans, Evans, Eyles, Eyles, Fenton, Gadd, Gomez, Gowan, Greenwood, Greenwood, Gregoire, Hughes, Jackson, Jansson, Johnston, Kleman, Kvill, Levson, Livingstone, Livingstone, Maizels, Mandryk, Mathews, McPherson, Moran, Osborn, Pană, Pettapiece, Postma, Roed, Roed, Roed, Sharp, Sharpe, St-Onge, Stalker, Stokes, Stokes, Utting, Wolfe, Ó Cofaigh   +61 more
core   +1 more source

Note on a clay deposit at Pienempi Kuivajärvi, Finnish Lapland [PDF]

Bulletin of the Geological Society of Finland, 1976
A clay deposit occurring on the eastern side of Pienempi Kuivajärvi, southeast of Ivalo, is described. The clay was accumulated in a proglacial lake. Mineralogical analysis indicates a mineral content not closely similar to those found earlier in Finnish
M. Saarnisto, R. Uusinoka
doaj   +1 more source

Unravelling the evolution of the Frébouge polygenetic cone in Val Ferret (Mont Blanc Massif)

Boreas, EarlyView.
Proglacial settings in the Alps are typically polygenetic, often characterized by a complex and discontinuous interplay between glacial, fluvial and gravitational processes. These processes yield high volumes of sediments, which usually exceed their transportation capacity.
Catharina Dieleman, Philip Deline, Susan Ivy Ochs, Patricia Hug, Jordan Aaron, Marcus  Christl, Naki Akçar   +6 more
wiley   +1 more source

Geomorphology of the Durmitor Mountains and surrounding plateau Jezerska Površ (Montenegro) [PDF]

, 2014
The geomorphological map of the northeastern Durmitor Mountains and the plateau Jezerska Povrs. (1: 10,000, 47 km(2), Montenegro, Dinaric Alps) was prepared from an intensive fieldwork campaign and remote sensing analysis, and was compiled within a GIS ...
Annys, Klaas, Borotac, Dragan, Frankl, Amaury, Nyssen, Jan, Spalević, Velibor, Čurović, Milic   +5 more
core   +3 more sources

A near 90-year record of the evolution of El Morado Glacier and its proglacial lake, Central Chilean Andes

Journal of Glaciology, 2020
Using an ensemble of close- and long-range remote sensing, lake bathymetry and regional meteorological data, we present a detailed assessment of the geometric changes of El Morado Glacier in the Central Andes of Chile and its adjacent proglacial lake ...
David Farías-Barahona, Ryan Wilson, Claudio Bravo, Sebastián Vivero, Alexis Caro, Thomas E. Shaw, Gino Casassa, Álvaro Ayala, Alonso Mejías, Stephan Harrison, Neil F. Glasser, James McPhee, Olaf Wündrich, Matthias H. Braun   +13 more
doaj   +1 more source

Thermal structure of proglacial lakes in Patagonia

Journal of Geophysical Research: Earth Surface, 2016
AbstractCalving glaciers are rapidly retreating in many regions under the influence of ice‐water interactions at the glacier front. In contrast to the numerous researches conducted on fjords in front of tidewater glaciers, very few studies have been reported on lakes in which freshwater calving glaciers terminate.
Shin Sugiyama, Masahiro Minowa, Daiki Sakakibara, Pedro Skvarca, Takanobu Sawagaki, Yoshihiko Ohashi, Nozomu Naito, Kazuhisa Chikita   +7 more
openaire   +2 more sources

Stratigraphic evidence for modern‐like glacier extents in south‐central Alaska within the last glacial period (MIS 3)

Boreas, EarlyView.
The last (Wisconsinan) glacial period was punctuated in North America by two glacial maxima, known as the Early and Late Wisconsinan glaciations. In Alaska, these maxima and their subsequent retreats have been the object of dating efforts to reconstruct local climatic events and compare them to global trends.
Bruno Belotti, Elizabeth J. Cassel, Timothy C. Bartholomaus, Michael G. Loso, Michael S. Christoffersen, John W. Holt   +5 more
wiley   +1 more source

Left High and Dry: Deglaciation of Dogger Bank, North Sea, Recorded in Proglacial Lake Evolution

Frontiers in Earth Science, 2019
Reconstructions of palaeo-ice sheet retreat in response to climate warming using offshore archives can provide vital analogs for future ice-sheet behavior.
Andy R. Emery, David M. Hodgson, Natasha L. M. Barlow, Jonathan L. Carrivick, Carol J. Cotterill, Emrys Phillips   +5 more
doaj   +1 more source

Palaeolandscape reconstruction of a shallow coastal embayment in Kattegat, Denmark—influence of sea‐level changes during the latest Pleistocene and Holocene

Boreas, EarlyView.
We analyse the geological processes of a coastal embayment in the Kattegat. Using high‐resolution seismic data and sediment cores, we describe a geological evolution from glacial to shallow marine stages with a variety of preserved facies from different depositional settings, including glacio‐lacustrine, telmatic, limnic and coastal environments.
Katrine Juul Andresen, Lars Ole Boldreel, Ole Bennike, Christof Pearce, Mikkel Fruergaard, Verner Brandbyge Ernstsen, Aart Kroon, Nicole Rita Posth, Marit‐Solveig Seidenkrantz   +8 more
wiley   +1 more source