PhD Studentship: Refining the Chronology and Palaeoclimatology of Chaco Canyon using Stable Isotope Dendrochronology

Funding providers: UKRI and Swansea University's Faculty of Science and Engineering

Subject areas: Physical Geography / Science-based Archaeology

Project start date: 1 October 2024 (Enrolment open from mid-September)

Project description: 

One of most iconic sites in American dendrochronology is the National Historical Park at Chaco Canyon. Timbers from multi-storey pueblo houses such as the iconic ‘Pueblo Bonito’ were among the very first used in the development of the science of dendrochronology by A.E. Douglass (1929). Remarkably, of the 7,708 wood samples from Chaco Canyon currently held in the Laboratory of Tree Ring Research (University of Arizona) only about 36% could be dendrochronologically dated. This can be quite typical at such sites, where there is often a large quantity of shorter lived or complacent wood that has not been suitable for traditional dendrochronological work, but which never-the-less offers substantial potential to augment our understanding of the site and its environmental history. This collaborative research project, in partnership with Professor C. Pearson and S. Belmecheri at the Laboratory of Tree Ring Research (University of Arizona) aims to apply the emerging technique of stable isotope dendrochronology to previously undated timbers, with a view to refining the chronology of this site and presenting a test case to be modelled at other SW sites. The project will also aim to develop an isotope-based palaeoclimate reconstruction capable of capturing the true magnitude of extreme “mega-drought” events and to explore their development and persistence through time, in concert with patterns of increased rainfall thought to correspond with periods of site expansion.

Eligibility

Candidates must hold a UK bachelor’s degree with a minimum of Upper Second Class honours or overseas bachelor’s degree deemed equivalent to UK honours (by UK ECCTIS) and achieved a grade equivalent to UK Upper Second Class honours in geography or a related field, OR master’s degree with a minimum overall grade at ‘Merit’ (or Non-UK equivalent as defined by Swansea University). Please note that you may need to provide evidence of your English Language proficiency.

Due to funding restrictions, this scholarship is open to applicants eligible to pay tuition fees at the UK rate only, as defined by UKCISA regulations.

Advert information