All Outputs (134)

Uplift and tilting of the Shackleton Range in East Antarctica driven by glacial erosion and normal faulting (2017)
Journal Article
Paxman, G., Jamieson, S., Ferraccioli, F., Bentley, M., Forsberg, R., Ross, N., …Jordan, T. (2017). Uplift and tilting of the Shackleton Range in East Antarctica driven by glacial erosion and normal faulting. Journal of Geophysical Research. Solid Earth, 122(3), 2390-2408. https://doi.org/10.1002/2016jb013841

Unravelling the long-term evolution of the subglacial landscape of Antarctica is vital for understanding past ice sheet dynamics and stability, particularly in marine-based sectors of the ice sheet. Here, we model the evolution of the bedrock topogra... Read More about Uplift and tilting of the Shackleton Range in East Antarctica driven by glacial erosion and normal faulting.

Deglacial history of the Pensacola Mountains, Antarctica from glacial geomorphology and cosmogenic nuclide surface exposure dating (2017)
Journal Article
Bentley, M., Hein, A., Sugden, D., Whitehouse, P., Shanks, R., Xu, S., & Freeman, S. (2017). Deglacial history of the Pensacola Mountains, Antarctica from glacial geomorphology and cosmogenic nuclide surface exposure dating. Quaternary Science Reviews, 158, 58-76. https://doi.org/10.1016/j.quascirev.2016.09.028

The retreat history of the Antarctic Ice Sheet is important for understanding rapid deglaciation, as well as to constrain numerical ice sheet models and ice loading models required for glacial isostatic adjustment modelling. There is particular debat... Read More about Deglacial history of the Pensacola Mountains, Antarctica from glacial geomorphology and cosmogenic nuclide surface exposure dating.

Testing models of ice cap extent, South Georgia, sub-Antarctic (2016)
Journal Article
Barlow, N., Bentley, M., Spada, G., Evans, D., Hansom, J., Brader, M., …Berg, S. (2016). Testing models of ice cap extent, South Georgia, sub-Antarctic. Quaternary Science Reviews, 154, 157-168. https://doi.org/10.1016/j.quascirev.2016.11.007

The extent of Last Glacial Maximum ice in South Georgia is contested, with two alternative hypotheses: an extensive (maximum) model of ice reaching the edge of the continental shelf, or a restricted (minimum) model with ice constrained within the inn... Read More about Testing models of ice cap extent, South Georgia, sub-Antarctic.

Dynamics of former ice lobes of the southernmost Patagonian Ice Sheet based on a glacial landsystems approach (2016)
Journal Article
Darvill, C., Stokes, C., Bentley, M., Evans, D., & Lovell, H. (2016). Dynamics of former ice lobes of the southernmost Patagonian Ice Sheet based on a glacial landsystems approach. Journal of Quaternary Science, 32(6), 857-876. https://doi.org/10.1002/jqs.2890

Reconstructions of former ice masses from glacial geomorphology help to constrain the nature and timing of glaciation in relation to climatic forcing. This paper presents a new reconstruction of the glacial history of five ice lobes in southernmost S... Read More about Dynamics of former ice lobes of the southernmost Patagonian Ice Sheet based on a glacial landsystems approach.

A sclerochronological archive for Antarctic coastal waters based on the marine bivalve Yoldia eightsi (Jay, 1839) from the South Orkney Islands (2016)
Journal Article
Román-González, A., Scourse, J. D., Richardson, C. A., Peck, L. S., Bentley, M. J., & Butler, P. G. (2017). A sclerochronological archive for Antarctic coastal waters based on the marine bivalve Yoldia eightsi (Jay, 1839) from the South Orkney Islands. Holocene, 27(2), 271-281. https://doi.org/10.1177/0959683616658525

The scarcity of long instrumental series from the Southern Ocean limits our understanding of key climate and environmental feedbacks within the Antarctic system. We present an assessment for the Antarctic mollusc bivalve Yoldia eightsi as an Antarcti... Read More about A sclerochronological archive for Antarctic coastal waters based on the marine bivalve Yoldia eightsi (Jay, 1839) from the South Orkney Islands.

The timing and cause of glacial advances in the southern mid-latitudes during the last glacial cycle based on a synthesis of exposure ages from Patagonia and New Zealand (2016)
Journal Article
Darvill, C., Bentley, M., Stokes, C., & Shulmeister, J. (2016). The timing and cause of glacial advances in the southern mid-latitudes during the last glacial cycle based on a synthesis of exposure ages from Patagonia and New Zealand. Quaternary Science Reviews, 149, 200-214. https://doi.org/10.1016/j.quascirev.2016.07.024

Glacier advances in the southern mid-latitudes during the last glacial cycle (ca. 110–10 ka) were controlled by changes in temperature and precipitation linked to several important ocean-climate systems. As such, the timing of glacial advance and ret... Read More about The timing and cause of glacial advances in the southern mid-latitudes during the last glacial cycle based on a synthesis of exposure ages from Patagonia and New Zealand.

Glacial isostatic adjustment associated with the Barents Sea ice sheet: a modelling inter-comparison (2016)
Journal Article
Auriac, A., Whitehouse, P., Bentley, M., Patton, H., Lloyd, J., & Hubbard, A. (2016). Glacial isostatic adjustment associated with the Barents Sea ice sheet: a modelling inter-comparison. Quaternary Science Reviews, 147, 122-135. https://doi.org/10.1016/j.quascirev.2016.02.011

The 3D geometrical evolution of the Barents Sea Ice Sheet (BSIS), particularly during its late-glacial retreat phase, remains largely ambiguous due to the paucity of direct marine- and terrestrial-based evidence constraining its horizontal and vertic... Read More about Glacial isostatic adjustment associated with the Barents Sea ice sheet: a modelling inter-comparison.

Clean subglacial access: prospects for future deep hot-water drilling (2015)
Journal Article
Makinson, K., Pearce, D., Hodgson, D., Bentley, M., Smith, A., Tranter, M., …Siegert, M. (2016). Clean subglacial access: prospects for future deep hot-water drilling. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 374(2059), Article 20140304. https://doi.org/10.1098/rsta.2014.0304

Accessing and sampling subglacial environments deep beneath the Antarctic Ice Sheet presents several challenges to existing drilling technologies. With over half of the ice sheet believed to be resting on a wet bed, drilling down to this environment... Read More about Clean subglacial access: prospects for future deep hot-water drilling.

Technologies for retrieving sediment cores in Antarctic subglacial settings (2015)
Journal Article
Hodgson, D., Bentley, M., Smith, J., Klepacki, J., Makinson, K., Smith, A., …Siegert, M. (2016). Technologies for retrieving sediment cores in Antarctic subglacial settings. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 374(2059), Article 20150056. https://doi.org/10.1098/rsta.2015.0056

Accumulations of sediment beneath the Antarctic Ice Sheet contain a range of physical and chemical proxies with the potential to document changes in ice sheet history and to identify and characterize life in subglacial settings. Retrieving subglacial... Read More about Technologies for retrieving sediment cores in Antarctic subglacial settings.

Recent Climate Change: Causes and Impacts of Climate Change in Antarctica (2015)
Book Chapter
Bentley, M. (2015). Recent Climate Change: Causes and Impacts of Climate Change in Antarctica. In D. Liggett, B. Storey, Y. Cook, & V. Meduna (Eds.), Exploring the last continent : an introduction to Antarctica (505-520). Springer Verlag. https://doi.org/10.1007/978-3-319-18947-5_25

In recent decades, many changes have occurred in the atmosphere and the ocean around Antarctica as well as to the terrestrial environments of the continent itself. The causes of these changes are numerous and varied. All components of the Antarctic e... Read More about Recent Climate Change: Causes and Impacts of Climate Change in Antarctica.

Extensive MIS 3 glaciation in southernmost Patagonia revealed by cosmogenic nuclide dating of outwash sediments (2015)
Journal Article
Darvill, C., Bentley, M., Stokes, C., Hein, A., & Rodés, A. (2015). Extensive MIS 3 glaciation in southernmost Patagonia revealed by cosmogenic nuclide dating of outwash sediments. Earth and Planetary Science Letters, 429, 157-169. https://doi.org/10.1016/j.epsl.2015.07.030

The timing and extent of former glacial advances can demonstrate leads and lags during 2 periods of climatic change and their forcing, but this requires robust glacial chronologies. In 3 parts of southernmost Patagonia, dating pre-global Last Glacial... Read More about Extensive MIS 3 glaciation in southernmost Patagonia revealed by cosmogenic nuclide dating of outwash sediments.

The surficial and subglacial geomorphology of western Dronning Maud Land, Antarctica (2015)
Journal Article
Chang, M., Jamieson, S., Bentley, M., & Stokes, C. (2016). The surficial and subglacial geomorphology of western Dronning Maud Land, Antarctica. Journal of Maps, 12(5), 892-903. https://doi.org/10.1080/17445647.2015.1097289

The surficial and subglacial geomorphology of ∼220,000 km2 of western Dronning Maud Land (WDML), Antarctica, is presented at a scale of 1:750,000. The mapped area includes the Stancomb-Wills Glacier north of 75°25′S and follows the grounded ice margi... Read More about The surficial and subglacial geomorphology of western Dronning Maud Land, Antarctica.

Uplift rates from a new high-density GPS network in Palmer Land indicate significant late Holocene ice loss in the southwestern Weddell Sea (2015)
Journal Article
Wolstencroft, M., King, M., Whitehouse, P., Bentley, M., Nield, G., King, E., …Gunter, B. (2015). Uplift rates from a new high-density GPS network in Palmer Land indicate significant late Holocene ice loss in the southwestern Weddell Sea. Geophysical Journal International, 203(1), 737-754. https://doi.org/10.1093/gji/ggv327

The measurement of ongoing ice-mass loss and associated melt water contribution to sea-level change from regions such as West Antarctica is dependent on a combination of remote sensing methods. A key method, the measurement of changes in Earth's grav... Read More about Uplift rates from a new high-density GPS network in Palmer Land indicate significant late Holocene ice loss in the southwestern Weddell Sea.

Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution (2015)
Journal Article
Matsuoka, K., Hindmarsh, R., Moholdt, G., Bentley, M., Pritchard, H., Brown, J., …Whitehouse, P. (2015). Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution. Earth-Science Reviews, 150, 724-745. https://doi.org/10.1016/j.earscirev.2015.09.004

Locally grounded features in ice shelves, called ice rises and rumples, play a key role buttressing discharge from the Antarctic Ice Sheet and regulating its contribution to sea level. Ice rises typically rise several hundreds of meters above the sur... Read More about Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution.

Lateglacial to Holocene relative sea-level changes in the Stykkishólmur area, northern Snæfellsnes, Iceland (2015)
Journal Article
Brader, M., Lloyd, J., Bentley, M., & Newton, A. (2015). Lateglacial to Holocene relative sea-level changes in the Stykkishólmur area, northern Snæfellsnes, Iceland. Journal of Quaternary Science, 30(5), 497-507. https://doi.org/10.1002/jqs.2795

Comparatively little research has been undertaken on relative sea-level (RSL) change in western Iceland. This paper presents the results of diatom, tephrochronological and radiocarbon analyses on six isolation basins and two coastal lowland sediment... Read More about Lateglacial to Holocene relative sea-level changes in the Stykkishólmur area, northern Snæfellsnes, Iceland.

Low post-glacial rebound rates in the Weddell Sea due to Late Holocene ice- sheet readvance (2015)
Journal Article
Bradley, S., Hindmarsh, R., Whitehouse, P., Bentley, M., & King, M. (2015). Low post-glacial rebound rates in the Weddell Sea due to Late Holocene ice- sheet readvance. Earth and Planetary Science Letters, 413, 79-89. https://doi.org/10.1016/j.epsl.2014.12.039

Many ice-sheet reconstructions assume monotonic Holocene retreat for the West Antarctic Ice Sheet, but an increasing number of glaciological observations infer that some portions of the ice sheet may be readvancing, following retreat behind the prese... Read More about Low post-glacial rebound rates in the Weddell Sea due to Late Holocene ice- sheet readvance.

Geomorphology and weathering characteristics of erratic boulder trains on Tierra del Fuego, southernmost South America: implications for dating of glacial deposits (2015)
Journal Article
Darvill, C. M., Bentley, M. J., & Stokes, C. R. (2015). Geomorphology and weathering characteristics of erratic boulder trains on Tierra del Fuego, southernmost South America: implications for dating of glacial deposits. Geomorphology, 228, 382-397. https://doi.org/10.1016/j.geomorph.2014.09.017

Erratic boulder trains (EBTs) are a useful glacial geomorphological feature because they reveal former ice flow trajectories and can be targeted for cosmogenic nuclide exposure dating. However, understanding how they are transported and deposited is... Read More about Geomorphology and weathering characteristics of erratic boulder trains on Tierra del Fuego, southernmost South America: implications for dating of glacial deposits.

The Glacial Geomorphology of the Antarctic Ice Sheet Bed (2014)
Journal Article
Jamieson, S., Stokes, C., Ross, N., Rippin, D., Bingham, R., Wilson, D., …Bentley, M. (2014). The Glacial Geomorphology of the Antarctic Ice Sheet Bed. Antarctic Science, 26(6), 724-741. https://doi.org/10.1017/s0954102014000212

In 1976, David Sugden and Brian John developed a classification for Antarctic landscapes of glacial erosion based upon exposed and eroded coastal topography, providing insight into the past glacial dynamics of the Antarctic ice sheets. We extend this... Read More about The Glacial Geomorphology of the Antarctic Ice Sheet Bed.

Terrestrial and submarine evidence for the extent and timing of the Last Glacial Maximum and the onset of deglaciation on the maritime-Antarctic and sub-Antarctic islands (2014)
Journal Article
Hodgson, D., Graham, A., Roberts, S., Bentley, M., Ó Cofaigh, C., Verleyen, E., …Smith, J. (2014). Terrestrial and submarine evidence for the extent and timing of the Last Glacial Maximum and the onset of deglaciation on the maritime-Antarctic and sub-Antarctic islands. Quaternary Science Reviews, 100, 137-158. https://doi.org/10.1016/j.quascirev.2013.12.001

This paper is the maritime and sub–Antarctic contribution to the Scientific Committee for Antarctic Research (SCAR) Past Antarctic Ice Sheet Dynamics (PAIS) community Antarctic Ice Sheet reconstruction. The overarching aim for all sectors of Antarcti... Read More about Terrestrial and submarine evidence for the extent and timing of the Last Glacial Maximum and the onset of deglaciation on the maritime-Antarctic and sub-Antarctic islands.

A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum (2014)
Journal Article
Bentley, M., Ó Cofaigh, C., Anderson, J., Conway, H., Davies, B., Graham, A., …Zwartz, D. (2014). A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum. Quaternary Science Reviews, 100, 1-9. https://doi.org/10.1016/j.quascirev.2014.06.025

A robust understanding of Antarctic Ice Sheet deglacial history since the Last Glacial Maximum is important in order to constrain ice sheet and glacial-isostatic adjustment models, and to explore the forcing mechanisms responsible for ice sheet retre... Read More about A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum.