Comparing Magnetic Susceptibility and Magnetome try: Two Case Studies from Illinois

Robert G. McCullough

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Geophysical survey techniques are becoming increasingly routine in archaeological investigations where ground-penetrating radar, soil resistivity, and magnetometry are widely familiar. Magnetic susceptibility surveys have been employed, but are underutilized in the United States and Britain. However, with the development of improved electromagnetic induction (EMI) instrumentation, the collection of magnetic susceptibility data for wide-area archaeological surveys is becoming more practical. Magnetometry and magnetic susceptibility are complementary geophysical survey techniques, which, when used together, can provide a more complete evaluation of subsurface anomalies. This paper compares the results of both magnetometry and magnetic susceptibility surveys on a 19th-century cemetery and a Late Prehistoric village in Illinois, demonstrating the utility of the newer dual-coil EMI instruments in close-interval spatial surveys. A Bartington Grad 601-1 gradiometer and a Geonics EM38-MK2 EMI were employed for this study, and the pros and cons of each technique will also be presented.
Original languageEnglish (US)
Title of host publicationProgram and Abstracts - 61st Annual Meeting
StatePublished - 2017


  • ISAS


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