The particular advantage of luminescence dating is that the method provides a date for the archaeological artefact or deposit itself, rather than for organic material in assumed association. For further information contact: Several cluster research projects address landscape dynamics in arid lands. Sediment erosion by wind and water removes fertile soil and destabilises landscapes. Catherine's DPhil research focuses on developing luminescence methods for the application of dating young sediments and improving our understanding of landscape sensitivities in dryland environments. Therefore little is known about dust sources of the most recent full glacial-interglacial cycle, highlighting a need for a systematic, high-resolution approach to examining profiles across the Danube basin linked to a robust chronostratigraphy. Work includes sand transport, dune mobilization, rock breakdown, past environmental changes, natural hazards, climate impact and the intersection of human and natural systems. Work incorporates landscape processes, long-term landscape dynamics, dryland environments and human-landscape interaction as researchers address issues that form the natural world. The typical turn-round time for providing a date is circa months, although, rapid dating circa weeks or sometimes less, depending on machine time and sample type using our fast track service can be undertaken. Applications of Luminescence Dating Luminescence dating is particularly appropriate when radiocarbon dating is not possible either where no suitable material is available or for ages beyond the radiocarbon age limit or for applications affected by radiocarbon plateau effects e. Current Teaching Publications Journal Articles.
This research cluster focuses on landscape processes, long-term landscape dynamics, dryland environments and human-landscape interactions. Long-term landscape dynamics In this programme a range of field and laboratory methods are utilised to address critical questions in the long term - years evolution of arid environments drylands where a range of proxy data sources indicate that their extent has fluctuated markedly during the Quaternary period. Therefore little is known about dust sources of the most recent full glacial-interglacial cycle, highlighting a need for a systematic, high-resolution approach to examining profiles across the Danube basin linked to a robust chronostratigraphy. Focusing on the Nebraska Sandhills, she uses generalised linear modelling of secondary disturbance datasets coupled with a high-resolution luminescence-derived record of environmental response to test the relationships between forcing factors and landscape stability. Luminescence Dating The Luminescence Dating Laboratory at the Research Laboratory for Archaeology and the History of Art, University of Oxford, has been actively involved in the development and application of luminescence dating for more than 50 years. In the case of OSL sediment dating, suitable material sand or silt-sized grains of quartz and feldspar is usually available ubiquitously throughout the site. Several cluster research projects address landscape dynamics in arid lands. Investigations are often multi-faceted and inter-disciplinary using a range of techniques including fieldwork, laboratory simulation and computer modelling. A quantified understanding of vegetation cover sensitivities and resultant surface change to forcing factors is needed if the vegetation and landscape response to future climate change and human pressure are to be better predicted. As environmental factors continue to evolve integrating the physical and social worlds is essential to address global issues. This project will apply new and established single-grain provenance as well as luminescence dating techniques to constrain the spatial and temporal variability of dust sources of late Quaternary loess. Loess sequence at Surduk, Serbia, spanning last ka. Research on climate, hazards, drought, dust and soils are examples of how landscape forces may influence livelihoods, communities, economics and ultimately governance. Previously proposed source s of Danubian loess have been mainly theoretical or inconclusive and included the Fennoscandinavian Ice-Sheet, Alpine glaciers, sands from the Carpathian Basin, Carpathians, Sudeten, and Danubian alluvial fans. Due to methodological differences, basin wide connections between data to achieve a regional overview of controls on sediment production and transport along the Danube has not been achieved. Age range and precision The age range for pottery and other ceramics covers the entire period in which these materials have been produced. Likewise, projects central to the Laboratory's research interests may be carried out at a reduced charge. OSL dating results including Dose equivalent De estimate, dose rate measurement and calculated age will be reported as a short pdf document by email. Her research interests include palaeoenvironmental reconstructions, sedimentology, and geochronology. More detailed expert reporting according to specific client needs can be undertaken following prior agreement with the laboratory. This includes optically stimulated luminescence OSL dating of sediments as well ceramics pottery, brick, tile, etc… , and burnt stones. The particular advantage of luminescence dating is that the method provides a date for the archaeological artefact or deposit itself, rather than for organic material in assumed association. Climate change impacts in the 21st century are widely predicted to impact on the extent and distribution of arid regions, particularly in the low latitudes. Two billion people living in drylands are affected by land degradation. Vegetation disturbance is a key driver of dryland erosion caused by both natural and human forcings:
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