sábado, 2 de enero de 2016

Conocer las cuevas decoradas del Monte Castillo



LibroCONOCER LAS CUEVAS DECORADAS DEL MONTE CASTILLO
Autor: GROENEN, MARC || GROENEN, MARIE-CHRISTINE
Editorial: MONTAÑAS DE PAPEL
Fecha de Publicación: 23/12/2015

La guía que tiene en sus manos en un completo recorrido por las cavidades del Monte Castillo: El Castillo, Las Monedas, La Pasiega y Las Chimeneas Realizada con el rigor técnico que caracteriza a sus autores, veteranos investigadores dedicados desde hace años al estudio de esta red subterránea, permite así mismo al visitante realizar un recorrido por las cuevas, indicándole todos y cada uno de los puntos de interés de la visita y la situación de los grabados y las pinturas. Este volumen incluye una completa colección fotográfica y nos permite tanto la recreación de la visita realizada, como la preparación de la misma y el conocer las galerías que atraviesan el Monte Castillo a través de una tranquila lectura... estvdio.es

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El futuro de Atapuerca entra en el laboratorio


Trabajos de perforación mecánica realizados en Cueva Fantasma. - ECB

Las muestras del sondeo de Fantasma podrán definir su edad en el primer trimestre de este año

Las bolsas de terreno que se extrajeron en un sondeo mecánico de perforación en Cueva Fantasma fueron uno de los hallazgos más comentados en la última campaña de excavaciones de Atapuerca. Su análisis y estudio entra en la recta final para alcanzar conclusiones sobre su composición y, lo más importante, su datación. Los resultados de las pruebas a las que se someten estas muestras serán claves para definir el futuro a medio plazo de las excavaciones en la sierra de Atapuerca. «Sabemos que el complejo kárstico de Atapuerca es muy extenso y amplio y tratamos de conocer posibles puntos de excavación a un medio y largo plazo», señala el responsable del área de Geocronología del Centro Nacional de Investigación sobre la Evolución Humana (Cenieh), Josep Parés.  [...] El Correo de Burgos

Latest study suggests early human dispersal into Spain through Strait of Gibraltar


The interior of Cueva Victoria. Nano Sanchez, Wikimedia Commons
 
Most recent dating places one wave of human dispersal out of Africa into southeastern Spain at almost one million years ago.

Using state-of-the-art dating methodologies, a team of scientists have obtained or confirmed a date range between .9 and .85 Mya (million years ago) as a time when a species of Old World monkey (Theropithecus) and an early species of human occupied the cave site of Cueva Victoria in southeastern Spain. It is a location not far from where many scientists have hypothesized that humans may have crossed over into Europe from North Africa through the Strait of Gibraltar at a time when seal levels were low enough to provide a land bridge between the two continents.

Using paleomagnetism, uranium-thorium, and vertebrate biostratigraphy dating techniques, Luis Gibert of the University of Barcelona, Spain, and colleagues from several other institutions conducted testing on fossiliferous breccia samples and other deposit samples from the cave. [...] Popular Archaeology

The study is published in press in the Journal of Human Evolution.


Actualización: Último estudio confirma el inicio de la dispersión humana en la Península Ibérica a través del Estrecho de Gibraltar
La mayoría de los yacimientos arqueológicos datados últimamente muestran una onda de dispersión humana en el sureste de España hace casi un millón de años 
 
Haciendo una recopilación o estado de la cuestión de las´últimas dataciones en la península, un equipo de científicos ha obtenido o confirmado un intervalo de fechas entre 0.9 y 0.85 Ma (millones de años). Un período en el cual especies del "Viejo Mundo" (Theropithecus) y algunos de los primeros especímenes de humano ocuparían el sitio de la Cueva Victoria, en el sureste de España. Es un lugar no muy lejos de donde muchos científicos han planteado la hipótesis de que los seres humanos pudieron haber cruzado a Europa desde el norte de África a través del Estrecho de Gibraltar. Esto se pudo producir en momentos de niveles marítimos suficientemente bajos para proporcionar un puente de tierra entre los dos continentes... 

Remains of Stone Age Hunters Found in Western Iran



Iranian archeologists found a number of stone tools in the western province of Kurdistan that they believe were employed by Paleolithic hunters.

Archaeological excavations in a number of caves and rock shelters along the Sirwan River, in Iran’s western region of Hawraman, revealed stone tools, burned animal bones and remains of hearths left by Stone Age hunters.

The new discoveries suggest that primitive game hunters lived in the region from about 40,000 years ago, until the end of Ice Age, around 12,000 years ago.

“The new finds provide researchers with valuable information about the way of life, game hunting and tool carving culture of the primitive hunting societies and food collectors,” Fereidoun Biglari, Paleolithic specialist and head of the excavation team explained. [...] Tasnim News Agency / Link 2

Did Volcanoes Spark an Explosion in Human Intelligence?


Añadir leyendaA new theory suggests that ancient hominins used volcanic features to cook their food, which could have fueled the expansion in human intelligence. Credit: Michael Medler

Vast lava flows may have provided humans with access to heat and fire for cooking their food millions of years ago, one researcher has proposed.

That, in turn, would have enabled the evolution of human intelligence, Michael Medler, a geographer at Western Washington University, said at the annual meeting of the American Geophysical Union earlier this month.

The new theory would also help solve a chicken-and-egg puzzle, he added. If cooked food provided the extra calories that allowed people to evolve big brains, and big brains are required to start fires, then how did hominins, with their teensy brains and relatively meager smarts, produce fire in the first place? [...] livescience.com

Lab tests of fossils rewrite Taiwan prehistory


Two fossilized parietal bone fragments (upper left and upper middle) of Tsuo Chen Man stored at National Taiwan Museum have been re-dated to 3,000 and 250 years ago by laboratories in Australia and the U.S. this year. (Courtesy of NTM)

The results of laboratory tests on two fossils from what some claimed as the second oldest prehistoric human relics in Taiwan were released Dec. 23 by Taipei City-based National Taiwan Museum, forcing experts to reconsider their archaeological perspectives of Taiwan.

The fossils were originally believed to be from early Homo sapiens of the late Pleistocene era, who are known collectively as Tsuo Chen Man living between 20,000 and 30,000 years ago. But the latest tests by Australian National University and Beta Analytic Inc. in the U.S. re-dated two of the six fossils stored at NTM to around 3,000 and 250 years ago, respectively.

According to Liu Yi-chang, a research fellow in history and philology at Academia Sinica, the results are not overly surprising. “The fossilized parietal bone fragments and molars from different bodies were first found in a riverbed in Tainan City in 1970, and have been the source of much dispute as they were not excavated from geological layers.”

Echoing Liu’s remarks, Chiu Hung-lin, assistant professor in the Institute of Anthropology at Hsinchu City-based Tsing Hua University, said advances in identification techniques helped dig out the truth. “The radiocarbon dating method is more precise than the fluorine and manganese method originally used by Japanese scholar Nobuo Shimoda.”

With the new information, academics are debating who should now be considered the second oldest inhabitants of Taiwan. The Changpin Culture is one possible contender as these people lived between 5,000 and 30,000 years ago, according to the National Museum of Prehistory.

Discovered in 1968 in Taitung County, artifacts found in Bashian Cave reveal traces of human activity. But some scholars are not convinced that the items belonged to the Changpin people.

Another possibility is the early Neolithic people of the Tapenkeng Culture dating back 5,000 years. Found in 1990 in Tainan County, dog skeletons, fossilized rice and pottery were discovered at two sites in the Tainan Technology Industrial Park, indicating the presence of an ancient agricultural society.

Meanwhile, according to an article published in the U.S. science journal Nature Communications Jan. 27 this year, the oldest Homo erectus fossil ever found in Taiwan is the mandible known as Penghu 1, which is likely to be between 10,000 and 190,000 years old. (YCH-JG.  Taiwan Today