The Ben Lawers Historic Landscape Project: Simultaneous Multi-element Analysis of Former Settlement and Arable Soils by X-ray Fluorescence Spectrometry

X-ray fluorescence spectrometry (XRFS) was used in the analysis of A horizon soil samples collected from a former farming settlement and its associated area of infield (i.e. arable) located in the Central Highlands of Scotland. To date, XRFS has not been extensively used in geoarchaeological research, but in our study the simultaneous multi-element capabilities of this instrumental technique allowed the total concentrations of 25 major, minor, and trace elements to be fully quantified with acceptable levels of accuracy and precision. Included within this group of chemical elements are a number (e.g. Ba, Ca, P, Pb, Sr and Zn) that have proved to be of value to archaeological interpretation in earlier investigations undertaken in Scotland. In our preliminary work documented here, significant differences were found between the A horizon soils of former settlement and infield areas for 18 chemical elements. Subjecting the XRFS data—and three other measured variables: soil organic carbon (SOC), pH and A horizon depth—to discriminant analysis indicates that soils of former settlement and arable farming can be effectively classified according to their pH, SOC content and Ca, Cu, Mg, Rb, and Zn concentrations. The inference is that areas of former infield and settlement elsewhere at this study location in the Central Highlands may be able to be identified according to their soil chemical composition and use of discriminant function, even though the surface remains of pre-eighteenth century settlement sites are not readily evident today because they were constructed of perishable materials.     

Three-dimensional (3D) visualisation: the application of terrestrial laser scanning in the investigation of historical Scottish farming townships

Recent developments in digital technologies are heralding significant changes in the way we acquire, visualise and analyse archaeological data. Terrestrial laser scanners can be used to create photo-realistic virtual copies of landscapes, and archaeological features, and offer the potential to improve our understanding of three-dimensional (3D) spatial relationships at study sites. Here we present a methodology for the integration of a high-resolution 3D site model with soil chemical data obtained from an abandoned settlement site located in the Central Highlands of Scotland. At this site, the multi-element concentration in soil, co-visualised within a topographic setting, has an important role to play in elucidating settlement layout and activity. The methods described here are also of significance in archiving sites of archaeological/historical importance where development activities and/or environmental processes may destroy remains, or where access to field sites is restricted.     

What “Is” Territorial Cohesion? What Does It “Do”?: Essentialist Versus Pragmatic Approaches to Using Concepts

The question, “what is territorial cohesion” has reverberated through European spatial policy since the publication of the European Spatial Development Perspective in 1999. Over the last 10 years, the European Spatial Policy Observation Network (ESPON) has made many efforts to define and measure the concept of “territorial cohesion”. Many such attempts assume that a policy concept must be defined in order to be “operationalized”. Or, in other words, that we must determine what the concept is before we can determine what it can or should do. This paper challenges this assumption in two parts. In the first, I review a number of ESPON projects to show how complex and uncertain these essentialist definitions have become. In the second, I analyse a number of national, regional and local government responses to the 2008 Green paper. I show that, whilst a clear and coherent definition has not been established, this concept is already operationalized in different policy frameworks. Bringing this together, I argue that users of such concepts ought to approach the issue differently, through a pragmatic line of enquiry: one that asks what territorial cohesion does, what it might do and how it might affect what other concepts, practices and materials do.