Interpreting Ground-penetrating Radar for Archaeology
Ground-penetrating radar (GPR) has become one of the standard tools in the archaeologist's array of methods, but users still struggle to understand what the images tell us. In this book—illustrated with over 200 full-color photographs—Lawrence Conyers shows how results of geophysical surveys can test ideas regarding people, history, and cultures, as well as be used to prospect for buried remains. Using 20 years of data from more than 600 GPR surveys in a wide array of settings, Conyers, one of the first archaeological specialists in GPR, provides the consumer of GPR studies with basic information on how the process works. He show how the plots are generated, what subsurface factors influence specific profiles, how the archaeologist can help the surveyor collect optimal data, and how to translate the results into useable archaeological information.
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A PERSONAL HISTORY OF GPRINTERPRETATION
ATTENUATION AND DEPTH OF PENETRATION
GRAVES AND CEMETERIES
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400 MHz antennas air waves amplitude maps amplitude slice-maps archaeological features architectural Ashkelon attenuation basalt beach bedrock burial buried features Caranqui casket cemetery Cerén Chaco clay collaborators collected with 400 Collecting GPR data Comb Wash complex construction Conyers Data collected data sets deposited depth El Salvador electrically conductive energy penetration excavations geological geophysical GPR images GPR interpretation GPR mapping GPR method GPR profiles GPR reflection profiles graves greathouse ground surface Ground-penetrating radar high-amplitude reflections historic Hohokam horizontal interesting interface isosurfaces kiva lake lava tube layers living surface Mapoon materials midden mound Nabataean nonreflective Petra pit-house pit-house floor planar reflection processing produced high-amplitude propagating radar energy radar reflections radar waves recorded reflected waves reflection data reflection features reflection hyperbolas Reflection profile collected Reflection profile showing reflections Figure remains sand sediment soil soil horizon stones structures terrace transect types velocity visible void space walls