Construction raw materials in the Dolmen of Alberite II. Petrologic analysis and geological source areas: archaeological contributions to the definition of a megalith destroyed in the necropolis of Villamartín

Abstract

This report shows the results of a research which tried to delimit the supplying possible areas  of stone raw materials which were used to build the megalithic grave of Alberite II. Alberite II is very close to the dolmen Alberite I and is part of the necropolis complex of Villamartín, Cadiz. In order to study the petrology and determine the different lithologies of the orthostate,an archaeometric study of every orthostate that still remains today – an indefinite part of those that originally made up the dolmen - was carried out. This allows us to suggest some hypotheses about the archaeological definition of this megalith from the preserved remains, with a chronology and similar structure to the dolmen of Alberite I.