In the Summer 2023 issue of Biblical Archaeology Review, Andrew Creekmore introduces the use of magnetometry in archaeology. His article, “Seeing into the Ground,” explains how magnetometry works and demonstrates what results this novel method has brought so far at Tell es-Safi, the site of the biblical Gath in southern Israel. ...The BAR article is behind the subscription wall, but this brief essay summarizes some main points.
A couple of PaleoJudaica posts dealing with magnetometry in archaeology are here and here.
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