M. Járó - L. Költő szerk.: Archaeometrical research in Hungary (Budapest, 1988)

Prospecting - VERŐ József: Exploration of archaeological sites in Western Hungary by the geomagnetic method

Anomaly B contains two nearby spots. The upper one is similar to anomaly A as it has a negative pair, too, but as the difference between the extremes is only 85 nT, the anomalies are somewhat less. The lower spot is only positive with a peak value of 35 nT, no negative spot exists. Here the excavation found many smithy slags, and far fewer tiles than at anomaly A, similarly to a Roman pit. Anomaly C lies, as mentioned, at the end of the extended linear zone of negative anomalies, otherwise it is similar to the lower part of anomaly B with a peak positive value of 35 nT. The archaeological result is similar, too: many smithy slags, some tiles. The last anomaly, anomaly D, has two components : one of them is very concentrated (to two measuring points), with a difference of 325 nT between them. It is due unambiguously to recent iron objects with the characteristic anomaly of such objects. The other component is again similar to the previous ones, and it is due to the filling of a Roman pit. The four most characteristic anomalies of the area are thus due to Roman pits where the anomalies are caused by fired clay and smithy waste in the filling. It is to be added that slag samples were rather strongly magnetized, they caused anomalies of 20—30 nT in the vicinity of the sensor. This value is several times higher than those found for early Medieval slags. The extended zone of negative anomalies remained unexplained, but it may be of natural origin.