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dc.contributor.authorBradák, Balázs
dc.contributor.authorCarrancho Alonso, Ángel 
dc.contributor.authorHerrejón Lagunilla, Ángela
dc.contributor.authorVillalaín Santamaria, Juan José 
dc.contributor.authorMonnier, Gilliane F.
dc.contributor.authorTostevin, Gilbert
dc.contributor.authorMallol, Carolina
dc.contributor.authorPajović, Goran
dc.contributor.authorBaković, Mile
dc.contributor.authorBorovinić, Nikola
dc.date.accessioned2021-11-04T13:49:32Z
dc.date.available2021-11-04T13:49:32Z
dc.date.issued2021-02
dc.identifier.issn1365-246X
dc.identifier.urihttp://hdl.handle.net/10259/6107
dc.description.abstractAn archaeomagnetic, rock magnetic and magnetic fabric study has been carried out on seven anthropogenic ash horizons in theMiddle Palaeolithic sedimentary level XXIV at the rock shelter of Crvena Stijena (‘Red Rock’), Montenegro. The study has multiple goals, including the identification of iron bearingminerals formed during combustion, assessment of the suitability of these combustion features for recording the Earth´s magnetic field direction, revelation of the magnetic fabric and its significance in the characterization of cave (rock shelter) burnt facies, and identification of post-burning alteration processes. Magnetite has been identified as themain ferromagnetic component of the ash. The ash layers exhibit a high thermomagnetic reversibility in contrast to the irreversible behaviour of their subjacent burnt black layers which is related to the different temperatures attained. Seven mean archaeomagnetic directions were obtained with acceptable statistical values indicating that these features recorded the field direction at the time of burning. However, some of them are out of the expected range of secular variation for mid-latitude regions suggesting post-burning alterations. The magnetic fabric of the ash was characterized by anisotropy of low field magnetic susceptibility measurements. Statistical analysis (box and whisker plot) of the basic anisotropy parameters, such as foliation, lineation, degree of anisotropy and the shape parameter, along with the alignment of the principal susceptibilities on stereoplots, revealed variation among the ash units. The diverse, oblate to prolate, lineated or strongly foliated, quasi-horizontally and vertically oriented fabrics of the units may indicate different slope processes, such as orientation by gravity, solifluction, run-off water, quasi-vertical migration of groundwater and post-burning/post-depositional alteration of the fabric by rockfall impact. In sum, the magnetic characterization of the ash layers has shown the occurrence of different post-burning alteration processes previously not identified at the site. Alteration processes in prehistoric combustion features are often identified from macroscopic observations but our study demonstrates that multiple processes can affect them and are usually unnoted because they take place on a microscopic scale. Their identification is critical for a correct chronological and cultural interpretation of a site (e.g. collection of samples for dating, stratigraphic displacement of remains), especially if significant alterations are involved. Magnetic methods are therefore a powerful but underutilized tool in palaeolithic research for the identification and evaluation of taphonomic processes affecting prehistoric fires.en
dc.description.sponsorshipBU235P18 (Junta de Castilla y León, Spain) and the European Regional Development Fund(ERDF) and the CGL2016-77560- C2, PID2019-108753GB-C21 and PID2019-105796GB-I00 of the Agencia Estatal de Investigación (AEI/10.13039/501100011033). AHL gives thanks to Junta de Castilla y León (Spain) and European Social Fund for the financial support during her predoctoral period. Micromorphological investigations by CM are funded by ERC Consolidator Grant project ERC-2014-CoG- 648871-PALEOCHAR.en
dc.format.mimetypeapplication/pdf
dc.language.isoengen
dc.publisherOxford University Press
dc.relation.ispartofGeophysical Journal International. 2021, V. 224, n. 2, p. 795–812
dc.subjectEuropeen
dc.subjectMagnetic fabrics and anisotropyen
dc.subjectRock and mineral magnetismen
dc.subject.otherMagnetismoes
dc.subject.otherMagnetismen
dc.subject.otherArqueologíaes
dc.subject.otherArchaeologyen
dc.titleMagnetic fabric and archaeomagnetic analyses of anthropogenic ash horizons in a cave sediment succession (Crvena Stijena site, Montenegro)en
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1093/gji/ggaa461
dc.identifier.doi10.1093/gji/ggaa461
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones


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