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Professor Michael Bentley's Outputs (136)

Subglacial topography inferred from ice surface terrain analysis reveals a large un-surveyed basin below sea level in East Antarctica (2008)
Journal Article
Le Brocq, A., Hubbard, A., Bentley, M., & Bamer, J. (2008). Subglacial topography inferred from ice surface terrain analysis reveals a large un-surveyed basin below sea level in East Antarctica. Geophysical Research Letters, 35(16), Article L16503. https://doi.org/10.1029/2008gl034728

A terrain analysis technique relating ice-surface plan curvature to basal topography is applied to the Antarctic Ice Sheet. The technique suggests complex bed topography and a large subglacial basin more than 1500 m below present day sea level under... Read More about Subglacial topography inferred from ice surface terrain analysis reveals a large un-surveyed basin below sea level in East Antarctica.

Stone run (block stream) formation in the Falkland Islands over several cold stages, deduced from cosmogenic isotope (10Be and 26Al) surface exposure dating (2008)
Journal Article
Wilson, P., Bentley, M., Schnabel, C., Clark, R., & Xu, S. (2008). Stone run (block stream) formation in the Falkland Islands over several cold stages, deduced from cosmogenic isotope (10Be and 26Al) surface exposure dating. Journal of Quaternary Science, 23(5), 461-473. https://doi.org/10.1002/jqs.1156

Cosmogenic isotope (10Be and 26Al) surface exposure dating has been applied to valley-axis and hillslope stone runs (relict periglacial block streams) and their source outcrops in the Falkland Islands, South Atlantic. The data indicate that stone run... Read More about Stone run (block stream) formation in the Falkland Islands over several cold stages, deduced from cosmogenic isotope (10Be and 26Al) surface exposure dating.

Constraining the age and formation of stone runs in the Falkland Islands using Optically Stimulated Luminescene. (2008)
Journal Article
Hansom, J., Evans, D., Sanderson, D., Bingham, R., & Bentley, M. (2008). Constraining the age and formation of stone runs in the Falkland Islands using Optically Stimulated Luminescene. Geomorphology, 94(1-2), 117-130. https://doi.org/10.1016/j.geomorph.2007.05.006

The stone runs of the Falkland Islands are thought to be periglacial blockfields but their age and detailed origin remain enigmatic. We examine the fine sediments that underlie two stone runs in order to establish whether Optically Stimulated Lumines... Read More about Constraining the age and formation of stone runs in the Falkland Islands using Optically Stimulated Luminescene..

Modelling Antarctic sea-level data to explore the possiblity of a dominant Antarctic contribution to meltwater pulse IA (2007)
Journal Article
Bassett, S., Milne, G., Bentley, M., & Huybrechts, P. (2007). Modelling Antarctic sea-level data to explore the possiblity of a dominant Antarctic contribution to meltwater pulse IA. Quaternary Science Reviews, 26(17-18), 2113-2127. https://doi.org/10.1016/j.quascirev.2007.06.011

We compare numerical predictions of glaciation-induced sea-level change to data from 8 locations around the Antarctic coast in order to test if the available data preclude the possibility of a dominant Antarctic contribution to meltwater pulse IA (mw... Read More about Modelling Antarctic sea-level data to explore the possiblity of a dominant Antarctic contribution to meltwater pulse IA.

Exploration of Ellsworth Subglacial Lake: a concept paper on the development, organisation and execution of an experiment to explore, measure and sample the environment of a West Antarctic subglacial lake (2007)
Journal Article
Siegert, M., Behar, A., Bentley, M., Blake, D., Bowden, S., Christoffersen, P., …Woodward, J. (2007). Exploration of Ellsworth Subglacial Lake: a concept paper on the development, organisation and execution of an experiment to explore, measure and sample the environment of a West Antarctic subglacial lake. Reviews in Environmental Science and Biotechnology, 6(1-3), 161-179. https://doi.org/10.1007/s11157-006-9109-9

Antarctic subglacial lakes have, over the past few years, been hypothesised to house unique forms of life and hold detailed sedimentary records of past climate change. Testing this hypothesis requires in situ examinations. The direct measurement of s... Read More about Exploration of Ellsworth Subglacial Lake: a concept paper on the development, organisation and execution of an experiment to explore, measure and sample the environment of a West Antarctic subglacial lake.

George VI Ice Shelf: past history, present behaviour and potential mechanisms for future collapse. (2007)
Journal Article
Smith, J., Bentley, M., Hodgson, D., & Cook, A. (2007). George VI Ice Shelf: past history, present behaviour and potential mechanisms for future collapse. Antarctic Science, 19(1), 131-142. https://doi.org/10.1017/s0954102007000193

George VI Ice Shelf is the largest ice shelf on the west coast of the Antarctic Peninsula, covering a total area of 25 000 km2. The northern ice front of George VI Ice Shelf presently marks the southernmost occurrence of recent ice-shelf retreat on t... Read More about George VI Ice Shelf: past history, present behaviour and potential mechanisms for future collapse..

Glacial geomorphology and chronology of deglaciation, South Georgia, sub-Antarctic (2007)
Journal Article
Bentley, M., Evans, D., Fogwill, C., Hansom, J., Sugden, D., & Kubik, P. (2007). Glacial geomorphology and chronology of deglaciation, South Georgia, sub-Antarctic. Quaternary Science Reviews, 26(5-6), 644-677. https://doi.org/10.1016/j.quascirev.2006.11.019

We mapped and dated the glacial geomorphology of north-east South Georgia, in the maritime sub-Antarctic. The aim was to examine the timing of deglaciation of the island in the context of inter-hemispheric phasing of climate change. Former glacier li... Read More about Glacial geomorphology and chronology of deglaciation, South Georgia, sub-Antarctic.

Geomorphological evidence and cosmogenic 10Be/26Al exposure ages for the Last Glacial Maximum and deglaciation of the Antarctic Peninsula Ice Sheet (2006)
Journal Article
Bentley, M., Fogwill, C., Kubik, P., & Sugden, D. (2006). Geomorphological evidence and cosmogenic 10Be/26Al exposure ages for the Last Glacial Maximum and deglaciation of the Antarctic Peninsula Ice Sheet. GSA Bulletin, 118(9), 1149-1159. https://doi.org/10.1130/b25735.1

This paper presents the first systematic attempt to map the Last Glacial Maximum (LGM) configuration of the southern and central parts of the Antarctic Peninsula Ice Sheet, and to determine the timing of onshore ice-sheet retreat. Geomorphologic evid... Read More about Geomorphological evidence and cosmogenic 10Be/26Al exposure ages for the Last Glacial Maximum and deglaciation of the Antarctic Peninsula Ice Sheet.