HR: 0800h
AN: NS51C-01    [Abstracts]
TI: Combined Geophysical Prospecting in Andalusia (Spain): Geomagnetics, GPR and IP Geoelectrics in Munigua, Montes de San Benito and Alcorrín.
AU: * Meyer, C
EM: cornelius@eastern-atlas.com
AF: eastern atlas Geophysical Prospection, Grosse Hamburger Str. 17, Berlin, 10115, Germany
AU: Ullrich, B
EM: b.ullrich@eastern-atlas.de
AF: eastern atlas Geophysical Prospection, Grosse Hamburger Str. 17, Berlin, 10115, Germany
AB: According to the special tasks of archaeologists of the German Archaeological Institute (Madrid department) geophysical investigation campaigns were realized at several sites in Andalusia during the last five years. In Munigua (Province of Seville) - a Roman municipium and centre of metal production - building structures like the city wall and production sites extra muro were investigated by means of GPR measurements. A new method permitting virtual or physical reconstructions of archaeological features in the ground is presented using the original geophysical data and avoiding the speculative aspect of previous reconstruction techniques. In addition the Roman archaeo-metallurgical remains were surveyed in order to investigate the economic base of the Roman town and its environs. Geoelectrical measurements were realized recording the complex resistivity. The extension and depth of slag heaps are estimated using 2D and 3D images of resistivity ρ and phase angle φ. The slag heaps are well-defined by IP effects from the bedrock. The results allow estimating the amount of processed metal in Munigua for the first time. The main focus of the survey in Montes de San Benito (Province of Huelva) was the investigation of the structure of a Celtiberic settlement closely connected to iron production as well. Geomagnetic mapping and GPR measurements were applied in order to detect the buried building structures and the street system. Several single buildings, the main axes and remains of furnaces were localized. A similar procedure was chosen prospecting the fortified hill of Alcorrìn (Province of Malaga), a Phoenician settlement nearby the Mediterranean coast. The both spectacular and rarely researched site is surrounded by an up to 5 m thick wall. Main goal of the two survey campaigns was the internal structure of the hill fort. Using geomagnetic mapping and GPR a second fortification system could be identified. Inside the second ring wall building structures made of mud-brick and lime stone were investigated and proved by excavations. The three examples convincingly demonstrate the close cooperation between archaeologists and geophysicist in order to find effective ways to solve archaeological questions by means of geophysical prospecting methods even under challenging conditions. Matter of particular interest has been the search for visualization techniques meeting both scientific standards and ensuring best possible clearness.
DE: 0910 Data processing
DE: 0925 Magnetic and electrical methods (5109)
DE: 0933 Remote sensing
SC: Near-Surface Geophysics [NS]
MN: 2007 Joint Assembly