This represents one of the largest samples of sourced obsidian from a Mesoamerican site and it provides a comprehensive picture for the development of interregional trade networks for Mesoamerica's first large Olmec center.ĪB - The Olmec were the first complex society to develop in Mesoamerica between 1800 and 600 cal B.C.
A total of 852 obsidian artifacts were analyzed to reconstruct changes in obsidian procurement between 1800 and 800 cal B.C. High precision chemical analysis of obsidian imported for use in the fabrication of cutting tools is used to reconstruct the growth, size and extent of San Lorenzo's interregional exchange networks with areas of Mexico and Guatemala where obsidian occurs as raw material. San Lorenzo's growth as a prominent center included the development of long distance trade relationships with adjacent areas of Guatemala and highland Mexico. The earliest large Olmec center during this period was the archaeological site of San Lorenzo which emerged as Mesoamerica's first large ritual and political center between 14 cal B.C. N2 - The Olmec were the first complex society to develop in Mesoamerica between 1800 and 600 cal B.C. We also thank Greg Luna for drafting the accompanying maps.
We acknowledge the National Science Foundation for grants BCS-0802757 and BCS-1110793 supporting the Archaeometry Laboratory at MURR. Our special thanks to Michael Coe who worked with Cobean and Glascock in the original Yale and Missouri obsidian projects. We are grateful to the Dirección General de Asuntos del Personal Académico-Universidad Nacional Autónoma de México for providing the financing for this project. T1 - Early Olmec obsidian trade and economic organization at San Lorenzo This represents one of the largest samples of sourced obsidian from a Mesoamerican site and it provides a comprehensive picture for the development of interregional trade networks for Mesoamerica's first large Olmec center.", This represents one of the largest samples of sourced obsidian from a Mesoamerican site and it provides a comprehensive picture for the development of interregional trade networks for Mesoamerica's first large Olmec center.Ībstract = "The Olmec were the first complex society to develop in Mesoamerica between 1800 and 600 cal B.C. The Olmec were the first complex society to develop in Mesoamerica between 1800 and 600 cal B.C.
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