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tistrilbution of ١a١-madc structurcs both in horivontal and vcrtical directions, It
should also bc mentioncd that some of the ١orth-south "linear anomalies" may
partly be ٢ uslt ‫ﺍ‬e of thc ١orth-south lipole dircction a١d ١orth-south mcasuring
dircction. '٢hc problen o٢ the 'lincar anomalics' ٧as not idecntified during the
survcy, thus rcadings with pcrpcndicular dipolc dircction were ١ot taken, It is the
hope that thc problcm with١ 'hinear anomalies' can be solved on futurc surveys.

‫ ﺇﺍﺕ‬In orlcr to corrclate the conductivity patterns with thc man-made structures, a

‫ •ﺍ‬thi٠rd data matri٠x was constructed based on the two measured grids (vertical and
‫ ﺝ‬horiontal modes), that is, the numerical difference between the tw٥ measured
‫ ﺥ‬modes (Figure 9). Theoretically, this should have the following effect on the
‫ ﺇ‬interpretation: an anomaly extending from the surfaceto about 6 meters below the
surface should show up in both modes (vertical and horizontal), while an anomaly
either located deep or at the surface should show up in only one of the two
‫ ﻭﺃ‬recordi٠ng modes. Furthermore, longi٠tudi٠٠nal vari٠ati٠on between areas caused by
‫}ﻹ‬major geological variations should be eliminated in the third data matrix because
,, these variations should show up in both modes (high-high=0, and lowlow=0).

Structures extending from the surface and down to approximately 6 meters will not
be displayed or show up on the resulting subtraction between the two grids (Figure
9). When comparing this plot to the two previous contour plots (Figures 7, 8), it is
evident that isolated variations in the conductivity are better displayed, suggesting
numerous anomalies present either in the upper strata or in the lower strata. Since
it is not evident which anomaly will yield a high conductivity or a low conductivity,
anomalies cannot be associated with either a low strata or an upper strata. The used
technique by subtracting data from the two modes is experimental. It is clear that
some of the assumptions may not be as simple as they have been stated, but may be
much more comple in its behavior. Future surveys and excavations may help us to
obtain a better understanding of this process. It is possible, however, that the
subtraction bewteenthe two recording modes significantly. increase the ability to
isolate specific anomalies, which may not be seen in either of the two recording
modes.

Other areas of interest in grid No. 1 suggest further excavation. We are especially
interested in exploring the area located at the center, yielding extremely high
" variation in the conductivity over very short longitudinal distances. We must
realize, however, that some of these anomalies may have been caused by measuring
over earlier archaeological excavations for which no records have been obtained,
and, as mentioned earlier, caused by the north-south dipole direction during the
sur‫ﻡ‬ey.

The second grid is located in the northeastern corner of the tell covering an area
of 73 by 46 meters (Figure 1). Measurements were taken for each meter in the
vertical dipole configuration (maximum depth penetration). The total number of

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