Ground penetrating radar investigation of the late Quaternary Hiscock Site, western New York State
Stokes, Philip J.
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Near-surface geophysical surveys have become increasingly useful for paleontological and archeological excavations to help locate buried objects and features. GPR was used to help locate and identify previously unmapped postglacial lithologic units at the Late Quaternary Hiscock Site in Byron, NY. By combining georadar facies interpretations with ground truthing, it was possible to reconstruct a more complete geomorphic evolution of the Hiscock Site strata. Additionally, the project was not successful in using GPR as a tool to map and understand the distribution of megafauna remains at the site. Data from about 9 km of GPR profiles were used to construct a 3D visualization of the fossil basin and its surroundings. Sediment core and direct-push sampling data support interpretations. This study identifies and maps ice-sculpted bedrock, a heterogeneous till unit, a massive subglacial deposit, and glaciofluvial sand and gravel channels.