Los Primeros Mexicanos. Late Pleistocene and Early Holocene People of Sonora. Guadalupe Sánchez, eds., Tucson: The University of Arizona Press, 2013. 224 pp.

2018 ◽  
Vol 23 (1) ◽  
pp. 217-219
Author(s):  
Guillermo Acosta Ochoa
Keyword(s):  
Late Pleistocene ◽  
Early Holocene ◽  
University Of Arizona ◽  
The University

scholarly journals Mid-Wisconsinan Radiocarbon Dates from Mastodon- and Mammoth-Bearing Springs, Ozark Highland, Missouri

Radiocarbon ◽  
1983 ◽  
Vol 25 (2) ◽  
pp. 381-391 ◽  
Author(s):  
C V Haynes ◽  
Minze Stuiver ◽  
Herbert Haas ◽  
J E King ◽  
F B King ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Cultural Change ◽  
University Of Missouri ◽  
Radiocarbon Dates ◽  
Human Presence ◽  
Pomme De Terre ◽  
Peat Deposits ◽  
University Of Arizona ◽  
State Museum ◽  
The University

From 1966 to 1979, the University of Missouri, the University of Arizona, and the Illinois State Museum conducted extensive interdisciplinary investigations of Late Pleistocene peat deposits associated with springs, some extinct, in the Pomme de Terre River Valley of the Ozark Highland, Missouri (fig 1). Most of the sites are now beneath the waters of the Harry S Truman reservoir. Archaeologic investigations in the area produced a remarkably long sequence of cultural change and development during the Holocene but produced no evidence of human presence in the area prior to 11,000 years ago despite diligent excavation of favorable bone-bearing deposits.

scholarly journals Late Pleistocene and Early Holocene aeolian deposits of Tasmania and their climatic implications – Corrigendum

2021 ◽  
pp. 1-2
Author(s):  
Peter D. McIntosh ◽  
Christina Neudorf ◽  
Olav B. Lian ◽  
Adrian J. Slee ◽  
Brianna Walker ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Early Holocene ◽  
Aeolian Deposits

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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