All Outputs (20)

Extensive palaeo-surfaces beneath the Evans–Rutford region of the West Antarctic Ice Sheet control modern and past ice flow (2024)
Journal Article

The subglacial landscape of Antarctica records and influences the behaviour of its overlying ice sheet. However, in many places, the evolution of the landscape and its control on ice sheet behaviour have not been investigated in detail. Using recentl... Read More about Extensive palaeo-surfaces beneath the Evans–Rutford region of the West Antarctic Ice Sheet control modern and past ice flow.

Geologic Provinces Beneath the Greenland Ice Sheet Constrained by Geophysical Data Synthesis (2024)
Journal Article

Present understanding of Greenland's subglacial geology is derived mostly from interpolation of geologic mapping of its ice‐free margins and unconstrained by geophysical data. Here we refine the extent of its geologic provinces by synthesizing geophy... Read More about Geologic Provinces Beneath the Greenland Ice Sheet Constrained by Geophysical Data Synthesis.

Subglacial valleys preserved in the highlands of south and east Greenland record restricted ice extent during past warmer climates (2024)
Journal Article

The Greenland Ice Sheet is a key contributor to contemporary global sea level rise, but its long-term history and response to episodes of warming in Earth's geological past remain uncertain. The terrain covered by the ice sheet comprises ∼ 79 % of Gr... Read More about Subglacial valleys preserved in the highlands of south and east Greenland record restricted ice extent during past warmer climates.

An ancient river landscape preserved beneath the East Antarctic Ice Sheet (2023)
Journal Article

The East Antarctic Ice Sheet (EAIS) has its origins ca. 34 million years ago. Since then, the impact of climate change and past fluctuations in the EAIS margin has been reflected in periods of extensive vs. restricted ice cover and the modification o... Read More about An ancient river landscape preserved beneath the East Antarctic Ice Sheet.

Patterns of valley incision beneath the Greenland Ice Sheet revealed using automated mapping and classification (2023)
Journal Article

The Greenland Ice Sheet covers an area of 1.7 million km2, equivalent to ∼79 % of the surface of Kalaallit Nunaat (Greenland) and ∼1.2 % of the Earth's land surface. The macro-scale geomorphology beneath the ice can provide a valuable record of past... Read More about Patterns of valley incision beneath the Greenland Ice Sheet revealed using automated mapping and classification.

Inference of the timescale-dependent apparent viscosity structure in the upper mantle beneath Greenland (2023)
Journal Article

Contemporary crustal uplift and relative sea level change in Greenland is caused by the response of the solid Earth to ongoing and historical ice mass change. Glacial isostatic adjustment (GIA) models, which seek to match patterns of land surface dis... Read More about Inference of the timescale-dependent apparent viscosity structure in the upper mantle beneath Greenland.

Response of the East Antarctic Sheet to Past and Future Climate Change (2022)
Journal Article

The East Antarctic Ice Sheet contains the vast majority of Earth’s glacier ice (about 52 metres sea-level equivalent), but is often viewed as less vulnerable to global warming than the West Antarctic or Greenland ice sheets. However, some regions of... Read More about Response of the East Antarctic Sheet to Past and Future Climate Change.

Total isostatic response to the complete unloading of the Greenland and Antarctic Ice Sheets (2022)
Journal Article

The land surface beneath the Greenland and Antarctic Ice Sheets is isostatically suppressed by the mass of the overlying ice. Accurate computation of the land elevation in the absence of ice is important when considering, for example, regional geodyn... Read More about Total isostatic response to the complete unloading of the Greenland and Antarctic Ice Sheets.

Neogene‐Quaternary Uplift and Landscape Evolution in Northern Greenland Recorded by Subglacial Valley Morphology (2021)
Journal Article

Antarctic palaeotopography (2021)
Journal Article

The development of a robust understanding of the response of the Antarctic Ice Sheet to present and projected future climatic change is a matter of key global societal importance. Numerical ice sheet models that simulate future ice sheet behaviour ar... Read More about Antarctic palaeotopography.

Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica (2020)
Journal Article

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

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

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

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

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

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

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

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

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

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.