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Title: Obsidian in the Casas Grandes world: Procurement, exchange, and interaction in Chihuahua, Mexico, CE 1200-1450

The Casas Grandes area in Chihuahua, Mexico and the site of Paquime was the center of one the largest regional systems in the U.S. Southwest and Mexican Northwest (SW/NW) during the Medio period (CE 1200-1450). People participated in local and distant exchange networks with groups in the SW/NW, Mesoamerica, and West Mexico. Our knowledge of which obsidian sources people used in Casas Grandes is limited, despite how obsidian could have derived from many different places. We examine how the use of specific obsidian sources may relate to broader political and economic relationships within the Casas Grandes regional system and its association with the Mimbres and Animas regions of the SW/NW. We sourced 116 artifacts using EDXRF spectrometry from four sites that neighbor Paquime. Results demonstrate people used obsidian from Chihuahua, Sonora, and New Mexico. Furthermore, there were varying levels of social interaction and regional integration because there is diversity in source use at the site level, and Casas Grandes were more connected to the Animas region than Mimbres regarding obsidian resource procurement.
ORCiD logo [1] ;  [2] ;  [3] ; ORCiD logo [4]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of Tulsa, Tulsa, OK (United States)
  3. Univ. of Oklahoma, Norman, OK (United States)
  4. Geoarchaeological XRF Lab., Albuquerque, NM (United States)
Publication Date:
Report Number(s):
Journal ID: ISSN 2352-409X
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Journal of Archaeological Science: Reports
Additional Journal Information:
Journal Volume: 11; Journal Issue: C; Journal ID: ISSN 2352-409X
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Environment, Health, Safety and Security (AU)
Country of Publication:
United States
58 GEOSCIENCES; Earth Sciences; Obsidian, archaeology, Mexico
OSTI Identifier: