Results 31 to 40 of about 9,145 (212)

Sediment behavior controls equilibrium width of subglacial channels

open access: yesJournal of Glaciology, 2017
Flow-frictional resistance at the base of glaciers and ice sheets is strongly linked to subglacial water pressure. Understanding the physical mechanisms that govern meltwater fluxes in subglacial channels is hence critical for constraining variations in ...
ANDERS DAMSGAARD   +5 more
doaj   +1 more source

Catchment-scale vulnerability assessment of groundwater pollution from diffuse sources using the DRASTIC method : a case study [PDF]

open access: yes, 2008
The catchment-scale groundwater vulnerability assessment that delineates zones representing different levels of groundwater susceptibility to contaminants from diffuse agricultural sources has become an important element in groundwater pollution ...
Blundell, J.R.   +3 more
core   +3 more sources

Lithopetrographic and geochemical features of the Saalian tills in the Szczerców outcrop (Poland) in various deformation settings

open access: yesOpen Geosciences, 2021
This paper presents the results of new studies of Saalian tills, from the Ławki and Rogowiec formations, filling the Kleszczów Graben. The study area is located in the Szczerców outcrop, Bełchatów Lignite Opencast Mine, central Poland. Laboratory studies
Wachecka-Kotkowska Lucyna   +4 more
doaj   +1 more source

Anomalous luminescence of subglacial sediment at Haut glacier d'Arolla, Switzerland - a consequence of resetting at the glacier bed? [PDF]

open access: yes, 2010
<p>Luminescence has the potential to elucidate glacial geomorphic processes because primary glacial sediment sources and transport pathways are associated with contrasting degrees of exposure to light.
Aitken   +53 more
core   +2 more sources

Lithostratotypes for Weichselian and pre-Weichselian sediments in southern and western Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1990
In this paper we define stratotypes for glacial and associated sediments in southern and western Finland. The Kauhajoki Formation in southern Ostrobothnia (Pohjanmaa) and the Kela Formation in western Uusimaa, comprise a complex sequence of sediments ...
M.A. Bouchard, P. Gibbard, V.-P. Salonen
doaj   +1 more source

The engineering properties of glacial tills [PDF]

open access: yesGeotechnical Research, 2018
Glacial tills are a product of the glacial processes of erosion, transportation and deposition and could have been subjected to several glacial cycles and periglacial processes to the extent that they are complex, hazardous soils that are spatially variable in composition, structure, fabric and properties, making them very difficult to sample, test and
openaire   +3 more sources

Mid-Miocene cooling and the extinction of tundra in continental Antarctica [PDF]

open access: yes, 2008
A major obstacle in understanding the evolution of Cenozoic climate has been the lack of well dated terrestrial evidence from high-latitude, glaciated regions.
Ashworth, A.C.   +12 more
core   +1 more source

Lithological discontinuity in Glossic Planosols (Albeluvisols) of Lower Silesia (SW Poland)

open access: yesSoil Science Annual, 2015
The paper focuses on Glossic Planosols (formerly Albeluvisols) with sandy topsoil widely represented in the northeastern part of Lower Silesia (SW Poland), in the range of tills from the Odra and Warta glaciations (Riss glaciation).
Musztyfaga Elżbieta, Kabała Cezary
doaj   +1 more source

Landforms of the lower Hushe Valley (Central Karakoram, Pakistan)

open access: yesJournal of Maps, 2020
This paper presents a new geomorphological map for the lower Hushe Valley (below 3400 m asl), located to the SE of the Central Karakoram in Baltistan (North Pakistan). Fieldwork and remote sensing were combined to improve understanding of the most recent
Ane Zabaleta   +6 more
doaj   +1 more source

Petrographical Analysis of Warthian Fuvioglacial Gravels as a Tool to Trace the Source Area – A Case Study From Central Poland [PDF]

open access: yes, 2014
The petrographical features of the medium- and coarse-grained gravels (4-10 mm and 20-60 mm, respectively) of weathered and fresh (unweathered) deposits indicate, in combination with so-called indicator and statistical erratics, that two glacial lobes ...
Górska-Zabielska, Maria   +1 more
core   +2 more sources

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