Research Article
A review of the role of magnetic susceptibility in archaeogeophysical studies in the USA: recent developments and prospects
Rinita A. Dalan *
Department of Anthropology and Earth Science, Minnesota State University Moorhead, 1104 7th Avenue South, Moorhead, MN 56563, USA
email: Rinita A. Dalan (dalanri@mnstate.edu)

*Correspondence to Rinita A. Dalan, Department of Anthropology and Earth Science, Minnesota State University Moorhead, 1104 7th Avenue South, Moorhead, MN 56563, USA.

Funded by:
 National Park Service
 National Center for Preservation Technology and Training
 National Science Foundation

Keywords
magnetic susceptibility • archaeogeophysics • environmental magnetism • geoarchaeology • field applications
Abstract
Magnetic susceptibility is emerging in archaeogeophysical projects in the USA as a distinctive method for survey that is now more frequently applied. Spurred in part by developments in instrumentation and software, encouraged by a strong geoarchaeological focus, and influenced by the nature of the North American archaeological record, the magnetic susceptibility method has arisen in a number of areas of application. These include magnetic susceptibility studies within trenches and excavation units, the use of down-hole sensors to investigate magnetic stratigraphy, visualization and interpretation of three-dimensional susceptibility data sets, the incorporation of magnetic susceptibility data into pattern analyses of the spatial distribution of archaeological materials, and the integration of magnetic susceptibility studies with magnetometer and other surface geophysical surveys and with soil magnetic studies accomplished in the laboratory. The scale of application has ranged from microgeophysical surveys confined to single excavation units to investigations of broad archaeological landscapes; problem orientation has been equally diverse. Soil magnetic techniques are being tapped to enhance understanding of the formation of sites, features and landscapes, and also post-depositional processes. Copyright © 2007 John Wiley & Sons, Ltd.

Received: 11 March 2007; Accepted: 2 October 2007