Outputs (20)

Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica (2020)
Journal Article
Napoleoni, F., Jamieson, S., Ross, N., Bentley, M., Rivera, A., Smith, A., …Vaughan, D. (2020). Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica. The Cryosphere, 14, 4507-4524. https://doi.org/10.5194/tc-14-4507-2020

Subglacial water plays an important role in ice sheet dynamics and stability. Subglacial lakes are often located at the onset of ice streams and have been hypothesised to enhance ice flow downstream by lubricating the ice– bed interface. The most rec... Read More about Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica.

A fault-bounded palaeo-lake basin preserved beneath the Greenland Ice Sheet (2020)
Journal Article
Paxman, G. J., Austermann, J., & Tinto, K. J. (2021). A fault-bounded palaeo-lake basin preserved beneath the Greenland Ice Sheet. Earth and Planetary Science Letters, 553, Article 116647. https://doi.org/10.1016/j.epsl.2020.116647

Subglacial topography not only exerts strong controls on contemporary ice sheet dynamics, but also provides an important long-term record of landscape evolution pertaining to past glacial and interglacial conditions. In particular, the bed topography... Read More about A fault-bounded palaeo-lake basin preserved beneath the Greenland Ice Sheet.

Long-term increase in Antarctic Ice Sheet vulnerability driven by bed topography evolution (2020)
Journal Article
Paxman, G., Gasson, E., Jamieson, S., Bentley, M., & Ferraccioli, F. (2020). Long-term increase in Antarctic Ice Sheet vulnerability driven by bed topography evolution. Geophysical Research Letters, 47(20), Article e2020GL090003. https://doi.org/10.1029/2020gl090003

Ice sheet behavior is strongly influenced by the bed topography. However, the effect of the progressive temporal evolution of Antarctica's subglacial landscape on the sensitivity of the Antarctic Ice Sheet (AIS) to climatic and oceanic change has yet... Read More about Long-term increase in Antarctic Ice Sheet vulnerability driven by bed topography evolution.

Reconstructions of Antarctic topography since the Eocene–Oligocene boundary (2019)
Journal Article
Paxman, G., Jamieson, S., Hochmuth, K., Gohl, K., Bentley, M., Leitchenkov, G., & Ferraccioli, F. (2019). Reconstructions of Antarctic topography since the Eocene–Oligocene boundary. Palaeogeography, Palaeoclimatology, Palaeoecology, 535, Article 109346. https://doi.org/10.1016/j.palaeo.2019.109346

Accurate models of past Antarctic ice sheet behaviour require realistic reconstructions of the evolution of bedrock topography. However, other than a preliminary attempt to reconstruct Antarctic topography at the Eocene–Oligocene boundary, the long-t... Read More about Reconstructions of Antarctic topography since the Eocene–Oligocene boundary.

Subglacial geology and geomorphology of the Pensacola-Pole Basin, East Antarctica (2019)
Journal Article
Paxman, G., Jamieson, S., Ferraccioli, F., Jordan, T., Bentley, M., Ross, N., …Casal, T. (2019). Subglacial geology and geomorphology of the Pensacola-Pole Basin, East Antarctica. Geochemistry, Geophysics, Geosystems, 20(6), 2786-2807. https://doi.org/10.1029/2018gc008126

The East Antarctic Ice Sheet (EAIS) is underlain by a series of low‐lying subglacial sedimentary basins. The extent, geology and basal topography of these sedimentary basins are important boundary conditions governing the dynamics of the overlying ic... Read More about Subglacial geology and geomorphology of the Pensacola-Pole Basin, East Antarctica.

The role of lithospheric flexure in the landscape evolution of the Wilkes Subglacial Basin and Transantarctic Mountains, East Antarctica (2019)
Journal Article
Paxman, G., Jamieson, S., Ferraccioli, F., Bentley, M., Ross, N., Watts, A., …Young, D. (2019). The role of lithospheric flexure in the landscape evolution of the Wilkes Subglacial Basin and Transantarctic Mountains, East Antarctica. Journal of Geophysical Research: Earth Surface, 124(3), 812-829. https://doi.org/10.1029/2018jf004705

Reconstructions of the bedrock topography of Antarctica since the Eocene–Oligocene Boundary (ca. 34 Ma) provide important constraints for modelling Antarctic ice sheet evolution. This is particularly important in regions where the bedrock lies below... Read More about The role of lithospheric flexure in the landscape evolution of the Wilkes Subglacial Basin and Transantarctic Mountains, East Antarctica.

Bedrock erosion surfaces record former East Antarctic Ice Sheet extent (2018)
Journal Article
Paxman, G., Jamieson, S., Ferraccioli, F., Bentley, M., Ross, N., Armadillo, E., …DeConto, R. (2018). Bedrock erosion surfaces record former East Antarctic Ice Sheet extent. Geophysical Research Letters, 45(9), 4114-4123. https://doi.org/10.1029/2018gl077268

East Antarctica hosts large subglacial basins into which the East Antarctic Ice Sheet (EAIS) likely retreated during past warmer climates. However, the extent of retreat remains poorly constrained, making quantifying past and predicted future contrib... Read More about Bedrock erosion surfaces record former East Antarctic Ice Sheet extent.

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.

Placer Gold Composition and Provenance Studies in the Kuznetskiy Alatau and Western Sayan, South-East Siberia: Results of Field Trip, Summer 2014 (2015)
Journal Article
Paxman, G., Gregory, B., Payne, S., Forshaw, J., Brady, M., Khan, M., …Naumov, V. (2015). Placer Gold Composition and Provenance Studies in the Kuznetskiy Alatau and Western Sayan, South-East Siberia: Results of Field Trip, Summer 2014. Vestnik Permskogo universiteta. Seriâ Geologiâ Вестник Пермского университета. Серия Геология (Online), 1(26), 44-59. https://doi.org/10.17072/psu.geol.26.44

This article presents the results of a study of gold samples obtained by students during a practical field trip in the summer of 2014. Placer gold samples retrieved from four rivers in southeast Siberia (Khakassia and Tyva territories) by panning and... Read More about Placer Gold Composition and Provenance Studies in the Kuznetskiy Alatau and Western Sayan, South-East Siberia: Results of Field Trip, Summer 2014.

Erosion-driven uplift in the Gamburtsev Subglacial Mountains of East Antarctica (1999)
Journal Article
Paxman, G., Watts, A., Ferraccioli, F., Jordan, T., Bell, R., Jamieson, S., & Finn, C. (1999). Erosion-driven uplift in the Gamburtsev Subglacial Mountains of East Antarctica. Earth and Planetary Science Letters, 452, 1-14. https://doi.org/10.1016/j.epsl.2016.07.040

The relative roles of climate and tectonics in mountain building have been widely debated. Central to this debate is the process of flexural uplift in response to valley incision. Here we quantify this process in the Gamburtsev Subglacial Mountains,... Read More about Erosion-driven uplift in the Gamburtsev Subglacial Mountains of East Antarctica.