Staff and Governance
To contact the IMEMS administrative office please use the following details:
T: 0191 334 2974
The day-to-day running of IMEMS is the responsibility of the Core Executive Committee, comprising the Director and Associate Directors and the Administrator.
Publication details for Dr Andrew R MillardMillard, AR (2006). Bayesian analysis of ESR dates, with application to Border Cave. Quaternary Geochronology 1(2): 159-166.
- Publication type: Journal Article
- ISSN/ISBN: 1871-1014
- DOI: 10.1016/j.quageo.2006.03.002
- Keywords: ESR dating; Bayesian analysis; Stratigraphy; Border Cave
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
Methods for Bayesian statistical analysis of stratigraphically related radiocarbon dates have been in use for over a decade. This paper extends these techniques to stratigraphically related ESR dates, allowing estimation of the dates of events not directly dated. A hierarchical model of the uncertainties in ESR dating is developed, to account for the correlation of error terms between samples. Using the new method, an analysis is made of the dating at Border Cave, Kwa Zulu Natal, South Africa. The results for individual dates and the dating of layer boundaries are more precise than previously obtained. The hominid fossils BC1 and BC2 are placed at either 71–91 ka (95% highest posterior density—hpd) or 152–171 ka (95% hpd) depending on the stratigraphic provenance assigned. BC3 is dated to 66–90 ka and BC5 to 61–72 ka (both 95% hpd). The estimated duration of the Howieson's Poort industry at Border Cave is demonstrated to have significant uncertainty, and the ESR dates, even with the increased precision of this analysis, are unable to decide between hypotheses that the industry lasted 10 ka and that it lasted 20 ka.
Full Executive Committee
Our Full Executive Committee is made up of the Core Executive Committee, listed above, plus a number of executive members including:
International Advisory Board
We are extremely fortunate to have be able to call on the help and guidance of colleagues from around the world who help to shape and guide our direction, strategy and international reach. Our current Advisory Board members are: