2026-05-07T20:20:49Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/45932023-10-11T12:21:19Zcom_10259.4_2560com_10259_5086com_10259_2604col_10259.4_2561

Carrancho Alonso, Ángel c47c7c49-1c87-4446-8702-199b30fcfbd4 500 Villalaín Santamaria, Juan José 576 500 0000-0001-9948-0953 Vallverdú, Josep 56f5e0d9-ee49-4670-bf77-618050681ab6 500 Carbonell, Eudald d4654bff-f855-490e-8d0f-973b4d58d095 600 2017-09-08T10:55:14Z 2018-09-01T02:45:06Z 2016-09 1040-6182 http://hdl.handle.net/10259/4593 10.1016/j.quaint.2015.12.083 Archaeomagnetic dating is probably one of the most known applications of magnetic methods to archaeology but there are others still underutilized and of particular interest to Palaeolithic archaeology. Here, we report a novel application of archaeomagnetism as a technique to determine temporal diachronies among combustion features from the same surface within palaeolithic palimpsests. The approach is based on the subtle directional changes of the Earth's magnetic field through time (secular variation, SV) and on the ability of burned materials to record such variations under certain conditions. Three Middle Palaeolithic hearths from level O (ca. 55 ka BP) at the Abric Romaní rock-shelter (NE Spain), were archaeomagnetically investigated. The studied surface (black homogeneous carbonaceous facies), recorded the magnetic enhancement produced by fire with a tenfold increase in concentrationdependent magnetic parameters in the uppermost centimetre with respect to its unburned or deeper counterparts. Pseudo-single domain (PSD) Ti-low titanomagnetite was identified as the main remanence carrier. The irreversibility of thermomagnetic curves suggests that these samples did not undergo enough high temperatures as to record a full thermoremanence (TRM). Additionally, the occasional occurrence of maghaemitized magnetite is interpreted as an indication of a thermochemical remanent magnetization (TCRM), making these samples unsuitable for absolute palaeointensity determinations. Two well-defined (a95 < 5 ) and statistically indistinguishable archaeomagnetic directions were obtained with their mean directions within their respective confidences circles at the 95% level. The lack of directional changes and the similarity in the magnetic properties suggest that these hearths recorded simultaneously or closely confined in time the Earth's magnetic field direction at the time of cooling. These results agree well with archaeological evidence which indicates a synchronic occupation of this activity area. The possibility of determining temporal differences among combustion features in prehistoric sites arises as a promising tool in palimpsest dissection studies and may help to reconstruct occupation patterns of prehistoric groups. The practical limits of the method are discussed as well as its potential to identify post-depositional mechanical alteration processes. Spanish Ministry of Economy and Competitiveness, (MINECO) and European Regional Development Fund (projects CGL2012-38481 and CGL2012-32149) application/pdf eng Elsevier Quaternary International. 2016, V. 417, p. 39-50 https://doi.org/10.1016/j.quaint.2015.12.083 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Archaeomagnetism Diachrony Hearth Middle Palaeolithic Neanderthals Secular variation Physics Paleontology Física Paleontología Is it possible to identify temporal differences among combustion features in Middle Palaeolithic palimpsests? The archaeomagnetic evidence: A case study from level O at the Abric Romaní rock-shelter (Capellades, Spain) info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/4593/10/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 10 THUMBNAIL Carrancho-QI_2016-Is_it_possible.pdf.jpg Carrancho-QI_2016-Is_it_possible.pdf.jpg IM Thumbnail image/jpeg 4387 https://riubu.ubu.es/bitstream/10259/4593/9/Carrancho-QI_2016-Is_it_possible.pdf.jpg 0005cc12deb17758a80173ec6e3c9259 MD5 9 ORIGINAL Carrancho-QI_2016-Is_it_possible.pdf Carrancho-QI_2016-Is_it_possible.pdf application/pdf 1513486 https://riubu.ubu.es/bitstream/10259/4593/7/Carrancho-QI_2016-Is_it_possible.pdf 86370d9405819bce47f66f896b9f921f MD5 7 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/4593/5/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 5 TEXT Carrancho-QI_2016.pdf.txt Carrancho-QI_2016.pdf.txt Extracted text text/plain 65809 https://riubu.ubu.es/bitstream/10259/4593/6/Carrancho-QI_2016.pdf.txt 75b082ebdda29626e47b5c3ed50b29ed MD5 6 Carrancho-QI_2016-Is_it_possible.pdf.txt Carrancho-QI_2016-Is_it_possible.pdf.txt Extracted text text/plain 63418 https://riubu.ubu.es/bitstream/10259/4593/8/Carrancho-QI_2016-Is_it_possible.pdf.txt c848f0d014b8ecb9d883c991e7a330a1 MD5 8 10259/4593 oai:riubu.ubu.es:10259/4593 2023-10-11 14:21:19.977 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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