Archaeological Geophysics


Introduction

Surface geophysics methods are utilised for delineation of various phenomena including; buried walls, ditches, burial mounds, graves, ancient water courses, field boundaries and generally for forensic applications. The primary motivation for using geophysics is to identify 'key' areas for detailed investigation and/or as follow up to conventional archaeological dig.

Techniques

SURFACE geophysical methods used include; fluxgate magnetic gradiometry, resistivity profiling, 2D resistivity imaging, electromagnetic profiling and ground penetrating radar.


Fluxgate Magnetometer Survey
Greyscale shaded relief view of fluxgate magnetometer gradient data of green field site showing Roman Road, and overlapping field boundaries


Survey for unmarked gravest
GPR survey for unmarked graves

Grave location beneath pavement
Hilbert transform of ground penetrating radar (GPR) signal showing attenuation (low amplitude) zones associated with graves.

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