Polish Archaeology in the Mediterranean (12.2000(2001))

QASR EL-SAGA

EGYPT

MAGNETIC SURVEY

The magnetic method was selected as best
suited to the project objectives. A gradio-
meter FM-36 (by Geoscan Research,
England) was used. The measuring grid
was 0.50 by 0.25 m, that is, measurements
were taken every 0.25 m along lines traced
0.50 m apart, applying the parallel mode
(instrument moving in one direction only,

that is, toward the south). The measured
units were 20 by 10 m big.
The results were presented as a magnetic
map, i.e., map of changes of intensity of the
Earth’s magnetic field (Fig. 2). Most of the
readings fall within the range of-3 and +3 nT.
The magnetic map — giving a grid of
anomalous readings - reflects the regularity


■io o io 20 nT ^

Fig. 2. Magnetic map. Measurement using gradiometer FM-36. Raster 0,5 x 0,25m. The frame
in the picture corresponds to the borders of the settlement according to J. Sliwa's reconstruction
(cf. Fig. 1) (Processed image T. Herbich)

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