Disponibilidad de materias primas líticas en la costa nororiental del Estrecho de Magallanes (Chile). Una aproximación exploratoria

Lithic raw materials availability in the northeastern coast of the strait of Magellan (Magellan, Chile) is characterized by means of nine rock samples collected between Posesión and Laredo bays following Franco and Borrero’s (1999) sampling methodology. Abundance, richness, flintknapping quality and size of rocks in coastal deposits are described. Thin section microscopic determinations allowed us to identify several types of lithic raw materials, especially of fine-grained dark rocks, which are different to those usually present in the Pali Aike volcanic field. These new data are discussed in relationship with the glaciological and archaeological information available for the area, and in a greater scale in comparison to previous results obtained from the Pali Aike volcanic field.