Results 111 to 120 of about 2,018 (207)

Locating subglacial sediments across West Antarctica with isostatic gravity anomalies [PDF]

open access: yes, 2007
Subglacial sediments are an important control on fast flowing ice in West Antarctica but their spatial distribution over catchment-wide areas is still largely unknown.
Ferraccioli, F.   +5 more
core  

An holistic approach to mapping the Quaternary geology and reconstructing the last glaciation of West County Mayo, Ireland, using satellite remote sensing and 'conventional' mapping techniques [PDF]

open access: yes, 2002
PhDThe Quaternary geology of West County Mayo, Ireland, has appeared in the literature over 30 times since Close's account in 1867. Various glacial reconstructions have been proposed due to i) the complex sedimentology and morphology of the area, ii ...
Jordan, Colm J
core  

Diversity and function of sulfur cycling microorganisms in sediments from Subglacial Lake Whillans, Antarctica [PDF]

open access: yes, 2014
There is a growing consensus that metabolically and phylogenetically diverse assemblages of microorganisms mediate subglacial nutrient and elemental cycling.
Purcell, Alicia Marie
core   +1 more source

Reconstructing ice dynamics in the central sector of the last British-Irish Ice Sheet [PDF]

open access: yes, 2010
The central sector (NW England and Scottish borders) of the last British-Irish Ice Sheet exhibits a palimpsest glacial geological and geomorphological signature characteristic of multi-phase ice flow and ice-marginal fluctuations. Despite its influential
LIVINGSTONE, STEPHEN,JOHN   +1 more
core  

Topographic and geologic controls on the Northeast Greenland Ice Stream

open access: yesAnnals of Glaciology
The Northeast Greenland Ice Stream (NEGIS) is an elongated feature extending ∼600 km into the interior of the Greenland Ice Sheet. Here, we investigate detailed subglacial topography along the length of the NEGIS to ascertain the characteristics of the ...
Charlotte M. Carter   +7 more
doaj   +1 more source

Modern to glacial age subglacial meltwater drainage at Law Dome, coastal East Antarctica from topography, sediments and jökulhlaup observations [PDF]

open access: yes, 2017
Rare jökulhlaup events, also known as subglacial lake outburst flood events, have been observed at the Law Dome ice margin and provide an insight into the physical characteristics of subglacial meltwater and drainage.
Goodwin, ID (15493013)   +6 more
core  

Subglacial deformation associated with a rigid bed environment, Aberdaron, north Wales. [PDF]

open access: yes, 1996
At Aberdaron, north Wales, a complex sequence of homogeneous tills and fluvial sediments overlie a hard rock base. The lower diamicton association at the bottom of the sequence consists of deformed tills and lenses of stratified sediments.
Hart, Jane
core  

Modelling the subglacial hydrology of the former Barents Sea Ice Sheet [PDF]

open access: yes, 2015
Ice dynamics are strongly controlled by processes taking place at the interface between the ice and the underlying bed. In modern day ice sheets, up to 90% of mass is lost through fast-flowing corridors of ice, called ice streams.
Gudlaugsson, Eythor
core  

Byrd Ice Core Debris Constrains the Sediment Provenance Signature of Central West Antarctica

open access: yesGeophysical Research Letters
Provenance records from sediments deposited offshore of the West Antarctic Ice Sheet (WAIS) can help identify past major ice retreat, thus constraining ice‐sheet models projecting future sea‐level rise.
J. W. Marschalek   +14 more
doaj   +1 more source

Repeated major inland retreat of Thwaites and Pine Island glaciers (West Antarctica) during the Pliocene. [PDF]

open access: yesProc Natl Acad Sci U S A
Horikawa K   +13 more
europepmc   +1 more source

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