Chaco and After in the Northern San Juan: Excavations at the Bluff Great House, by Catherine M. Cameron, 2009. Tucson (AZ): The University of Arizona Press; ISBN 978-0-8165-2681-9 hardback £51 & US$61; xix+341 pp., 132 figs.

2010 ◽  
Vol 20 (2) ◽  
pp. 274-275
Author(s):  
Jill E. Neitzel
Keyword(s):  
San Juan ◽  
University Of Arizona ◽  
Great House ◽  
Bluff Great House ◽  
The University

Sacred Earthen Architecture in the Northern Southwest: The Bluff Great House Berm

2002 ◽  
Vol 67 (4) ◽  
pp. 677-695 ◽  
Author(s):  
Catherine M. Cameron
Keyword(s):  
Spatial Distribution ◽  
Chaco Canyon ◽  
San Juan ◽  
Sacred Place ◽  
Great House ◽  
Earthen Architecture ◽  
Bluff Great House ◽  
Ritual Architecture

This article reports on the excavation of a “berm”—an earthen mound that surrounds the Bluff Great House in southeastern Utah. Comparisons are made to Chacoan-era (A.D. 850–1150) great house mounds in Chaco Canyon and to other berms and mounds at great houses throughout the Chacoan region. Great house mounds in Chaco Canyon and berms outside Chaco Canyon are assumed to have been ritual architecture, and continuity in the use of mounded earth and trash as a sacred place of deposit is traced through time from the Pueblo 1 period to modern Pueblos. The Bluff berm does not seem to have been constructed as the result of ceremonial gatherings (as has been suggested for the great house mounds in Chaco Canyon), but there is intriguing evidence that it continued to be used into the post-Chacoan era (A.D. 1150–1300), perhaps as a result of a restructuring or revival of Chacoan ideas in the northern San Juan region. Examination of the spatial distribution of berms suggests that they are most common at great houses south and west of Chaco Canyon; the northern San Juan region, where Bluff is located, has far fewer such features, possibly because the revival of Chacoan ideas in this region was short-lived.

RADIOCARBON IN MEXICO: FROM PROPORTIONAL COUNTERS TO AMS

Radiocarbon ◽  
2021 ◽  
pp. 1-7
Author(s):  
Corina Solís ◽  
Efraín Chávez ◽  
Arcadio Huerta ◽  
María Esther Ortiz ◽  
Alberto Alcántara ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Sample Preparation ◽  
High Voltage ◽  
Accelerator Mass Spectrometry ◽  
Science And Technology ◽  
National Council ◽  
University Of Arizona ◽  
Technological Developments ◽  
High Voltage Engineering ◽  
The University

ABSTRACT Augusto Moreno is credited with establishing the first radiocarbon (14C) laboratory in Mexico in the 1950s, however, 14C measurement with the accelerator mass spectrometry (AMS) technique was not achieved in our country until 2003. Douglas Donahue from the University of Arizona, a pioneer in using AMS for 14C dating, participated in that experiment; then, the idea of establishing a 14C AMS laboratory evolved into a feasible project. This was finally reached in 2013, thanks to the technological developments in AMS and sample preparation with automated equipment, and the backing and support of the National Autonomous University of Mexico and the National Council for Science and Technology. The Mexican AMS Laboratory, LEMA, with a compact 1 MV system from High Voltage Engineering Europa, and its sample preparation laboratories with IonPlus automated graphitization equipment, is now a reality.

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