Climate forcing and Neanderthal extinction in southern Iberia; insights from a multiproxy marine record

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doi: 10.1016/j.quascirev.2006.12.013
Author(s): Jiménez-Espejo, Francisco J.; Martínez-Ruiz, Francisca; Finlayson, Clive; Paytan, Adina; Sakamoto, Tatsuhiko; Ortega-Huertas, Miguel; Finlayson, Geraldine; Iijima, Koichi; Gallego-Torres, David; Fa, Darren
Author Affiliation(s): Primary:
Universidad de Granada, Campus Fuentenueva, Departamento de Mineralogìa y Petrología, Granada, Spain
CSIC, Instituto Andaluz de Ciencias de la Tierra, Spain
Gibraltar Museum, United Kingdom
University of Toronto at Scarborough, Canada
Stanford University, United States
Japan Agency for Marine-Earth Science and Technology, Japan
Volume Title: Quaternary Science Reviews
Source: Quaternary Science Reviews, 26(7-8), p.836-852. Publisher: Elsevier, International. ISSN: 0277-3791
Note: In English. 140 refs.; illus., incl. 1 table, sketch map
Summary: Paleoclimate records from the western Mediterranean have been used to further understand the role of climatic changes in the replacement of archaic human populations inhabiting South Iberia. Marine sediments from the Balearic basin (ODP Site 975) was analysed at high resolution to obtain both geochemical and mineralogical data. These data were compared with climate records from nearby areas. Baexcces was used to characterize marine productivity and then related to climatic variability. Since variations in productivity were the consequence of climatic oscillations, climate/productivity events have been established. Sedimentary regime, primary marine productivity and oxygen conditions at the time of population replacement were reconstructed by means of a multiproxy approach. Climatic/oceanographic variations correlate well with Homo spatial and occupational patterns in Southern Iberia. It was found that low ventilation (U/Th), high river supply (Mg/Al), low aridity (Zr/Al) and low values of Baexcess coefficient of variation, may be linked with Neanderthal hospitable conditions. We attempt to support recent findings which claim that Neanderthals populations continued to inhabit southern Iberia between 30 and ∼28 ky cal BP and that this persistence was due to the specific characteristics of South Iberian climatic refugia. Comparisons of our data with other marine and continental records appear to indicate that conditions in South Iberia were highly inhospitable at ∼24 ky cal BP. Thus, it is proposed that the final disappearance of Neanderthals in this region could be linked with these extreme conditions. Abstract Copyright (2007) Elsevier, B.V.
Year of Publication: 2007
Research Program: ODP Ocean Drilling Program
Key Words: 24 Surficial Geology, Quaternary Geology; Alkaline earth metals; Arid environment; Barium; Cenozoic; Chemical composition; Chordata; Climate change; Climate forcing; Cores; Europe; Eutheria; Extinct taxa; Extinction; Hominidae; Homo; Homo sapiens; Homo sapiens neanderthalensis; Iberian Peninsula; Leg 161; Mammalia; Marine sediments; Mediterranean Sea; Metals; Mineral composition; Minorca Rise; ODP Site 975; Ocean Drilling Program; Paleoclimatology; Paleoecology; Paleoenvironment; Pleistocene; Primates; Productivity; Quaternary; Sediments; Southern Europe; Terrestrial environment; Tetrapoda; Theria; Upper Pleistocene; Vertebrata; West Mediterranean; X-ray diffraction data
Coordinates: N350000 N400000 E0050000 W0070000
N385348 N385348 E0043036 E0043036
Record ID: 2009078352
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands