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BAJR Federation Archaeology › BAJR Federation Forums › The Site Hut v
Geophysical survey

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Geophysical survey
John Walford Offline
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#13
24th April 2009, 01:26 PM
I agree that titanium is unlikely to be a problem. But there is a simple test you can do to be sure. Get someone to hold the magnetometer steady in front of you and run it in scan mode. Then move your foot slowly towards the sensor (either at the top or bottom of the gradiometer tube) and see if the readings change significantly. If they do then you've got a problem. If not then you will probably be alright to survey.

The above applies to magnetometery. You might also encounter problems with EM instruments, but magnetic susceptibility, GPR and resistivity are all unaffected by metal fittings

"Hidden wisdom and buried treasure, what use is there in either?" (Ecclesiasticus ch20 v30)
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Geophysical survey - by Beanie - 23rd April 2009, 10:53 PM

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