Fertile grounds for ancient civilization: Geophysical insights into the Liyangan site on Mount Sindoro.

The Liyangan site, located on the slopes of Mount Sindoro, is an ancient residential complex built in a wet area rich in vegetation, fields, and rice fields. This study aimed to determine the rock structure below the surface of the Liyangan site using geophysical investigations with the Electrical Resistivity Inversion (ERI) and Analytic Signal Geomagnetic (ASG) methods. The ERI data showed that the archaeological buildings at the Liyangan site were built on rocks with low resistivity values (<100 ohm.m), indicating alluvial deposits with high water saturation. The ASG data revealed low to moderate magnetic intensity values for the current Liyangan Site area and high magnetic intensity values (>22nT) for the suspected buried site building area. The study also detected two fault structures, trending southeast-northwest and northeast-southwest, through the ASG map. These results suggest that the Liyangan site was a fertile area and rich in water, allowing past civilizations to develop around the site. The detection of buried archaeological structures and fault structures provides important information for further archaeological studies and land management planning. [ABSTRACT FROM AUTHOR]