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Title: Is There Mahogany Obsidian in Northeastern Sonora, Mexico?

A piece of mahogany obsidian came to the attention of the senior author during an excavation project near the town of Mata Ortiz, Chihuahua, Mexico in 2015. Because mahogany obsidian in northwestern Mexico is particularly rare, the question was raised, what obsidian source did this sample derive? Here, using energy-dispersive X-ray fluorescence (EDXRF) spectrometry, we demonstrate it comes from the Agua Fria obsidian source in northeastern Sonora, Mexico. Unfortunately, we do not know where this sample was collected from. We discuss these results and the significance of this find in this paper, but more investigation is certainly warranted.
Authors:
ORCiD logo [1] ;  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Geoarchaeological XRF Lab., Albuquerque, NM (United States)
Publication Date:
Report Number(s):
LA-UR-17-21626
Journal ID: ISSN 2310-5097
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
IAOS Bulletin
Additional Journal Information:
Journal Volume: 56; Journal ID: ISSN 2310-5097
Publisher:
International Association for Obsidian Studies
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
Language:
English
Subject:
58 GEOSCIENCES; Earth Sciences; Obsidian; Mexico; Archaeology
OSTI Identifier:
1351199