Hueyatlaco

Hueyatlaco is a Archeological site of the area of the Cuenca del Valsequillo, to 75 km in the south-east of Mexico City. In the the Sixties, a team of archeologists and geologists, under the control of Juan Armenta Camacho and Cynthia Irwin-Williams, discover worked tools and artefacts there worthy of the Man of Cro-Magnon. Other tools, rougher were found with the site of an archeological site close to El Horno. For these two archeological sites, the geological analysis of the stratigraphic layers are not any doubt, these artefacts go back all to approximately 250.000 years.

Dispute of the dating

The geologists used four methods to date these so old artefacts: by analysis of uranium, by the way of fission, the chronostratigraphy on the hydration will tephra and by analysis of mineral disintegration.

The date of approximately 250.000 years obtained on the site of Hueyatlaco by the team of geologists caused much polemic. If this date is allowed, it would revolutionize not only the new anthropology of the world but the whole image of the human origin. The historians do not think that the human beings were able, 250.000 years ago, to make such sophisticated tools, like those found in Hueyatlaco.

The publication of the reports/ratios and account-returned the research made by the team of archeologists on the site of Hueyatlaco, was delayed several years. It is only in 1975, that was presented, at the time of an anthropological conference, the report/ratio of this research. The advertisement of these results made great noise. If information presented appeared credible, that would place the Man to America ten times earlier than envisaged. Moreover the majority of the bifaciaux tools found in situ are of style Homo Sapiens gold at that time there, the Man had not evolved/moved yet D the kind according to the current chronology.

The majority of the archeologists rejected the results of this work on the site of Hueyatlaco., because these results contradict the theory of the settlement of the Man. Their reasoning is that Homo-Sapiens evolved in Eurasia to 35.000 years/50.000 years. By consequence, all the found artefacts and tools cannot go back 250.000 years but at most to 30.000 years.

New studies

The biologist Oscar Polaco, sub-manager of to the service of the National institute Anthropology and the History analysis laboratories of Mexico City (INAH) points out that " the sites of the Cuenca del Valsequillo were for a long time an archaeological surface where one discovers the oldest prints with those of El Cedral in the State of Potosi San Luis, the island del Ispiritu santo and in Baja California, all gone back to 35.000 years to 40.000 years. The site of Valsequillo is, just like the site of Pedra Furada in Brazil or that of Calexico to the the United States, in the fork of dates of the settlement of America between 50.000 years and 300.000 years ".

The Center of Géochronologie of the University of California to Berkeley, dated the sediments from the volcano to a million three hundred and thousand years. Would the human prints go back to this time? The scientific team of the University John Moores of Liverpool, that if that appear exact, it would not be about the Homo Sapiens. This date seems to them not very probable, or then one homidé former to the Homo Sapiens

In 2003/2004 " was launched; El Proyecto Arqueológico Hueyatlaco". It is an initiative binationale between specialists in the mêms disciplines: volcanic geology, paleontology and arqueology, of Instituto Nacional de Antropología E Historia" from Mexico (INAH), as well as the autonomous University of Mexico City and the university of Texas. (The United States) the director Joaquín Cabrales Stream, from the Laboratory of Arquéozoologie of the INAH and member of the project of Hueyatlaco came to make an inspection on the site in May 2004.

Datings, of the prints and artefacts like remainders of animals, given by the teams of the " Archaeological project of Hueyatlaco" turn around 40.000 years. This date is confirmed by the team of the University John Moores of Liverpool.

See too

Theories of the first settlement of America

http://www.conaculta.gob.mx/saladeprensa/index.php?indice=9&fecha=2006-01-25
http://www.centerfirstamericans.org/research.php
http://www.jqjacobs.net/anthro/paleoamerican_origins.html.

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