Archaeological and geophysical investigations at the Kalnik – Igrišče site in 2013

Arheološka istraživanja na položaju Kalnik – Igrišče nastavljena su i 2013. godine, no u znatno manjem opsegu. Istraživanja su bila usmjerena na lokaciju gdje je terenskim pregledom 2012. godine prvi put otkrivena zidana konstrukcija s nalazima antičke i prapovijesne keramike. Osim arheoloških iskopavanja na položaju Kalnik – Wilhelm, na Igrišču su napravljena geofizička mjerenja.The archaeological excavations were carried out at the position first discovered in the 2012 field survey. The excavation was expanded at the place where the field survey ascertained the presence of a built structure with the remains of ancient and prehistoric pottery. The position lies 350 m east of the position of sondage II, next to a mountain house known as Wilhelm\u27s House. The discovered built structure is aligned N-S, that is, follows the orientation of the terrace. The wall, which consists of irregular stones bound with mortar, descends in steps down the slope. It presently appears that the wall is 120 cm wide. The wall cut through a Bronze Age cultural layer into the virgin soil. Due to the exceptional value of the Kalnik-Igrišče position and the complexity of the stratigraphic layers, the archaeological excavations in the continuation of the 2012 sondage pit were not carried out. It transpired that other methods were more suitable in this phase of the investigation. We conducted geophysical measurements at two positions using the georadar method (GSSI SIR3000, 400 MHz antena), the geoelectrical resistivity method (Geoscan RM15) and the magnetic method (Geometrics G-858). The measurements were carried out at two places, and the preliminary results of the processed data corroborate certain assumptions and offer new guidelines for the organization of archaeological excavations, but also point to new positions with distinct anomalies whose shape points to a thermoremanent type of magnetisation