The existence of a footprint fossil indicates that some discontinuity occurred at the footprint plane during sedimentation. RASCAN holographic radar reveals the plan shape of shallow buried objects. A simple experiment showed that a clod of loam soil buried in powdered loam soil was recognizable in a radar image. Another experiment showed that a thin ¯lm inserted between dielectrically similar materials also provides recognizable re°ection. Finally, blind tests were performed for realistic surrogates for dinosaur footprints. The radar image has no recogniz- able pattern for the case of microscopic air gap at the footprint parting plane. However, when the air gap was replaced by very thin clay ¯lm, the shape of the toes became recognizable. Thus, there may be some cases in which some discontinuity during sedimentation makes the shape of a dinosaur footprint fossil recognizable by holographic radar.
Analytical Approach for RASCAN Radar Images of Dinosaur Footprints through Basic Experiments / Inagaki, M.; Bechtel, T. D.; Capineri, Lorenzo; Ivashov, S. I.; Windsor, C. G.. - ELETTRONICO. - (2013), pp. 1586-1590. (Intervento presentato al convegno Proceedings of PIERS 2013 in Stockholm tenutosi a Stockholm nel August 12-15, 2013).
Analytical Approach for RASCAN Radar Images of Dinosaur Footprints through Basic Experiments
CAPINERI, LORENZO
Investigation
;
2013
Abstract
The existence of a footprint fossil indicates that some discontinuity occurred at the footprint plane during sedimentation. RASCAN holographic radar reveals the plan shape of shallow buried objects. A simple experiment showed that a clod of loam soil buried in powdered loam soil was recognizable in a radar image. Another experiment showed that a thin ¯lm inserted between dielectrically similar materials also provides recognizable re°ection. Finally, blind tests were performed for realistic surrogates for dinosaur footprints. The radar image has no recogniz- able pattern for the case of microscopic air gap at the footprint parting plane. However, when the air gap was replaced by very thin clay ¯lm, the shape of the toes became recognizable. Thus, there may be some cases in which some discontinuity during sedimentation makes the shape of a dinosaur footprint fossil recognizable by holographic radar.File | Dimensione | Formato | |
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