TY - GEN
T1 - Comparing Magnetic Susceptibility and Magnetome try: Two Case Studies from Illinois
AU - McCullough, Robert G.
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
KW - ISAS
UR - http://www.midwestarchaeology.org/sites/default/files/annual-meeting/documents/2017DigitalProgramFinal.pdf#page=109
M3 - Conference contribution
SP - 109
BT - Program and Abstracts - 61st Annual Meeting
ER -