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On the age of the hominid fossils at the Sima de los Huesos, Sierra de Atapuerca, Spain: paleomagnetic evidence

AutorParés, Josep María; Pérez-González, Alfredo; Weil, Arlo B.; Arsuaga, Juan Luis
Palabras claveMiddle Pleistocene
Neanderthal
Spain
Remanent magnetization
Matuyama-Brunhes
Fecha de publicaciónabr-2000
EditorJohn Wiley & Sons
CitaciónAmerican Journal of Physical Anthropology 111(4): 451-461
http://hdl.handle.net/2027.42/34269
ResumenWe report new paleomagnetic data for the Middle Pleistocene hominid-bearing strata in the Sima de los Huesos, North Spain. Sediments (brown muds with human and bear fossils and the underlying sterile clayey and sandy unit) preserve both normal and reversed magnetic components. The sterile unit has exclusively reversed magnetization, dating back to the Matuyama Chron, and thus is Lower Pleistocene in age. The overlying fossiliferous muds have a dominant normal magnetization that overprints a partially resolved reversed magnetization. These data are compatible with one of the reversal events that occurred during the Brunhes Chron. Combined with the existing U-series dates and evidence from the macro- and microfauna, these paleomagnetic results suggest an age of the hominid fossils between 325 to 205 ka, whereas the underlying sand and silts are older than 780 ka.
URIhttp://hdl.handle.net/10261/2562
ISSN0002-9483
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