Results 101 to 110 of about 2,018 (207)

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

open access: yesThe 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   +9 more
doaj   +1 more source

Impacts of subglacial processes on underlying bedrock [PDF]

open access: yes, 2019
Historically, the field of glacial geology has put much focus on the processes within the subglacial environment, their effects on unconsolidated sediments and the landforms they produce.
Juliusson, Oscar
core  

A critical assessment of subglacial mega-floods: a case study of glacial sediments and landforms in south-central Alberta, Canada [PDF]

open access: yes, 2006
The existing subglacial megaflood explanation of glacial sediment deposition and landform production in south-central Alberta relies upon four sets of observations and associated interpretations: (1) a subglacial genesis for all glacilacustrine sediments
John Hiemstra   +4 more
core   +1 more source

Regional and Annual Variability in Subglacial Sediment Transport by Water for Two Glaciers in the Swiss Alps

open access: yesFrontiers in Earth Science, 2018
Glaciers expel large amounts of water and sediments, and the discharge of both is influenced by glacier retreat. Because the majority of sediment originates subglacially, as opposed to proglacially, focus must be given to subglacial sediment discharge ...
Ian Delaney   +4 more
doaj   +1 more source

The glacial geomorphology of the tweed valley and surrounding area, eastern British Isles. [PDF]

open access: yes, 2009
This project focuses on reconstructing the glacial dynamics of the Tweed Valley and surrounding area in the Scottish Borders and northeast Northumberland from the glacial geomorphological record.
Staines, Kate E.H.
core  

Iron Transport by Subglacial Meltwater Indicated by δ56Fe in Coastal Sediments of King George Island, Antarctica [PDF]

open access: yes, 2019
Iron (Fe) fluxes from reducing sediments and subglacial environments potentially contribute to bioavailable Fe in the Southern Ocean. Stable Fe isotopes (δ56Fe) may be used to trace Fe sources and reactions, but data are scarce and Fe cycling in natural ...
Kasten, Sabine   +5 more
core  

Subglacial water and sediment samplers [PDF]

open access: yesJournal of Glaciology, 1991
Erik W. Blake, Garry K.C. Clarke
openaire   +1 more source

Deformation of Subglacial Sediments and its Implications (Abstract only) [PDF]

open access: yes, 1981
Field experiments have shown that unlithified sediments beneath a glacier may undergo strong shear deformation in response to the movement of the overlying glacier, and that much of the forward movement of the glacier may be contributed by this mechanism.
G. S. Boulton
core   +1 more source

Supplemental Material: Dynamic subglacial meltwater history archived in Antarctic subglacial lake sediments

open access: yes
<p>Sediment core descriptions, Kruskal-Wallis summary statistics, and mineral phase content from X-ray diffraction data tables.</p>
et al., Timothy D. Campbell
openaire   +1 more source

Improved discrimination of subglacial and periglacial erosion using 10Be concentration measurements in subglacial and supraglacial sediment load of the Bossons glacier (Mont Blanc massif, France). [PDF]

open access: yes, 2015
14 pagesInternational audienceDeciphering the complex interplays between climate, uplift and erosion is not straightforward and estimating present-day erosion rates can provide useful insights.
Guillon, Hervé   +15 more
core   +1 more source

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