I am Teaching Fellow at St John's College and a Research Associate and Tutor at the School of Geography and the Environment, University of Oxford.
My research interests lie within understanding the dynamics of dryland systems, including environmental change, landscape dynamics and groundwater resources. I work within the Landscape Dynamics research cluster, the Oxford Water Futures Programme and the Oxford Luminescence Dating Laboratory.
I am interested in these processes and dynamics over a range of timescales and address two broad themes:
CURRENT RESEARCH PROJECTS
1) Chemical Tracers as novel archives
A) Rainfall in the desert sand
Thesiger-Oman International Fellowship from the Royal Geographic Society I sampled linear dunes above the Stampriet Aquifer in southern Namibia to investigate rates of recharge to groundwater over the past few decades in the region. The data also provides a record of relative moisture changes through time, which is a novel proxy for moisture availability in the desert environment. Read research report.
And thanks also to the British Society for Geomorphology, who have awarded me a small Reseach Grant, which completed funding for the first phase of fieldwork and laboratory analysis.
The second phase of fieldwork started in April, 2013, and investigates whether geomorphological setting controls variations in the records preserved. Thanks to the Quaternary Research Association for funding towards this second phase.
B) Palaeomoisture records in the sandy deserts
With Mike Edmunds I am reviewing the application and developments of using chemical proxies in sand dunes and sediments (the unsaturated zone) as novel proxies for past moisture availability.
2) Quaternary environmental dynamics using geoproxies
A) Casting new light on Quaternary environmental change in the Namib Desert.
Journal of Arid Environments, and chapter in The CHANGING DESERTS - Integrating people and their environments book.
Have a look at the coverage on BBC Earth News, and Oxford Uni news on the Oxford Deserts conference featuring pictures from my fieldwork in the Namib Desert.
B) Dating generations of dunes
The Namib Dese
I teach physical geography at St John's College.
Prelims (first year) Physical Geography (Earth System Processes)
Prelims Geographical Techniques
Prelims Geographical Controversies.
Final Honours School Physical Geography (Earth System Dynamics)
Final Honours School Geographical Research Methods
I am also a tutor for the Quaternary Period and Dryland Environments special subjects for Final Honours School at the School of Geography and the Environment.
Thoughts on the puzzle of LGM climate and environmental conditions in southern Africa…
I'm interested to hear any views on this and the on ways forward...
In the (only very slightly soggy) sands of the Kalahari, some locations contain a lot of nitrate. Is this sheep peeor has it been biologically produced by vegetation that behaves in transient manner across landscapes over decades? Read here for what I and Mike Edmunds think, and you decide…
publications page for more (and for copies of these publications please email me)
Stone, A. E. C., Edmunds, W. M. (2014) Naturally-high nitrate in the unsaturated zone sand dunes above the Stampriet Basin, Namibia. Journal of Arid Environments 105, 41-51.
Stone, A. E. C. (2013) Age and dynamics of the Namib Sand Sea: A review of chronological evidence and possible landscape development models. Journal of African Earth Sciences 82, 70-87.
Stone, A. E. C., and Thomas, D. S. G. (2013 - online view since 2011) Casting new light on late Quaternary environmental and palaeohydrological change in the Namib Desert: A review of the application of optically stimulated luminescence in the region. Journal of Arid Environments 93, 40-58.
Stone, A. E. C. Edmunds, W. M. (2012) Sand, salt and water in the Stampriet Basin,Namibia: Calculating unsaturated zone (Kalahari dune-field) recharge using thechloride mass balance approach.Water SA 38(3), 367-377
Stone, A. E. C. and Bailey, R. M. (2012). The effect of single grain luminescence charateristics on single aliquot equivalent dose estimates. Quaternary Geochronology 11, 68-78.
Quaternary Science and Soil/Sand Gets Speedy
My colleauge Matt was contacted by these speed-seekers, who want to understand more about the composition of the pan surface in South Africa they plan to tear across with a hybrid rocket and Eurofighter-Typhoon jet engine! ZOOM...
Gobabeb - 50 years persistent research and fascination
A wonderful place in the desert, hosting both SAAG and SAASQUA conferences in 2012. As part of the celebrations (and to honour Mary Seely's 70th Birthday) I have paper in JofAE.
Useful Quaternary Science datasources can be found be obtained and downloaded from: