Name: Guy Paxman

Project Title: “Reconstructing aspects of the palaeotopography of Antarctica”Guy Paxman photo

Cohort: 2015/16

Institution: Durham University (in partnership with the British Antarctic Survey)

Supervisors:

 
Biography:

I graduated from the University of Oxford in July 2015 with an integrated Master’s degree in Earth Sciences (MEarthSci). I have developed a broad range of interests within the Earth Sciences spectrum, encompassing aspects of geology, geophysics, and palaeoclimate. During my MEarthSci project, I integrated large aerogeophysical datasets to quantitatively assess the role of lithospheric flexure in generating uplift in the Gamburtsev Subglacial Mountains in interior East Antarctica.

I am now using a variety of geophysical, geochemical and geomorphological datasets to reconstruct Antarctic palaeotopography as far back as 100 Ma. Potential study areas include Antarctica’s largest mountain ranges: the Ellsworths, Shackletons and Gamburtsevs, and deepest subglacial basins: the Wilkes and Aurora. Topographic reconstructions are a vital requisite for numerical ice sheet models, which simulate past ice behaviour. This work will further address key open questions regarding intraplate mountain building processes, the interplay of climate and tectonics in the formation of topography, and whether the ice sheet has become more or less stable as a result of landscape evolution processes. This work forms part of the ANTscape project to generate a range of palaeotopographic maps of Antarctica over the past 130 Million Years (www.antscape.org) as part of the Past Antarctic Ice Sheets (PAIS) group of the Scientific Committee on Antarctic Research (SCAR).
 
Publications/Conference talks/Posters:

Paxman, G. J. G., Gregory, B. S., Payne, S. J., Forshaw, J. B., Brady, M. P., Khan, M. D., Avadanii, D., Wardle, G., Wills, J. J., Kovin, O. N., Naumova, O. B., Osovetskiy, B. M. & Naumov, V. A. (2015). Placer Gold Composition and Provenance Studies in the Kuznetskiy Alatau and Western Sayan, South-East Siberia: Results of Field Trip, Summer 2014. Bulletin of Perm State University: Geology 1(26): 44-59

Paxman, G. J. G., A. B. Watts, F. Ferraccioli, T. A. Jordan, R. E. Bell, S. S. R. Jamieson, C. A. Finn, D. Damaske (2015). Isostatic rebound caused by Cenozoic fluvial and glacial incision in the Gamburtsev Subglacial Mountains and their pre-incision topography. Poster. ISAES XII – 12th International Symposium on Antarctic Earth Sciences.

Paxman, G. J. G., A. B. Watts, F. Ferraccioli, T. A. Jordan, R. E. Bell, S. S. R. Jamieson, C. A. Finn, D. Damaske (2015). Quantifying tectonic and erosion-driven uplift in the Gamburtsev Subglacial Mountains of East Antarctica. Poster. AGU Fall Meeting.

Paxman, G. J. G., A. B. Watts, F. Ferraccioli, T. A. Jordan, R. E. Bell, S. S. R. Jamieson, C. A. Finn (2016). Erosion-driven uplift in the Gamburtsev Subglacial Mountains of East Antarctica. Earth and Planetary Science Letters 452, 1-14.
 
Get in touch:

Email: guy.j.paxman@durham.ac.uk

Department webpage: https://www.dur.ac.uk/geography/postgraduate/current_research_students/?id=14458