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Flashcards in Geophysics techniques Deck (6)
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What is resistivity most useful for?

Detecting buried features such as ditches and walls


How does resistivity work?

It investigates how well a site conducts electricity using probes


How far below the ground to the probes go during resistivity techniques?

Up to 20cm


What principle does Resistivity work off?

That the ground retains moisture and this affects its ability to conduct an electric current


Give 2 examples as to where Resistivity successfully identified buried features

Roman Villa in Peterborough- presence of walls and entire complex
Chester amphitheatre- second theatre found


What principle does magnetometry work off?

That the earth maintains a magnetic field which over time may develop abnomalities