Geochemistry of Radiolarites from the Betic Cordillera: Implications for Source Determination of Raw Material in Archaeology

In the Betic Cordillera (Subbetic Zone) radiolarian bearing sequences of the Middle to Late Jurassic age have been studied from a petrological and geochemical point of view. The objective of this paper is stablish the differentiating characteristics among the six chosen sections (AB, AG, SP, JH, SE...

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Detalhes bibliográficos
Autores: Bustillo, Mª Ángeles, Bustillo M.
Formato: otro
Fecha de publicación:1997
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/160718
Acesso em linha:http://hdl.handle.net/10261/160718
Access Level:acceso abierto
Palavra-chave:Radiolarite
Archaeology
Geochemistry
Source provenence
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spelling Geochemistry of Radiolarites from the Betic Cordillera: Implications for Source Determination of Raw Material in ArchaeologyBustillo, Mª ÁngelesBustillo M.RadiolariteArchaeologyGeochemistrySource provenenceIn the Betic Cordillera (Subbetic Zone) radiolarian bearing sequences of the Middle to Late Jurassic age have been studied from a petrological and geochemical point of view. The objective of this paper is stablish the differentiating characteristics among the six chosen sections (AB, AG, SP, JH, SE and ZG) to use them as criteria for determination sources of the archaeological artefacts found in this area. The radiolarite beds are largely composed of quartz (50%-80%), with lesser amounts of calcite (≤ 30%), clay minerals (smectite, illite, and occasionally kaolinite) (10% to 35%) and hematites (≤ 5%). Analysis of major, minor, traces and rare earth elements is the best method to separate radiolarites among the studied sections. According to this, biogenic and total silica let us define two groups of sections: (a) AS and AG, and (b) ZG, SP and JH, and the SE section is not clearly defined. In the first group, AG and AS sections differentiate themselves when the percentage of biogenic silica (greater than 64%) is compared to the percentage of CaO. The AG samples adapt themselves to a typical regression line, and the AS samples are distant from the regression line. Furthermore the samples of the AB section clearly characterize themselves by Ce/Ce* and Lun / Lan indexes. In relation to the second group (≤ 61% of biogenic silica), the samples from the SP and JH sections are defined by a typical regression line when the percentage of biogenic silica is compared to the percentage of AI2 O3 or K20.CICYT Projects PB87-0264 and PB 92-0069.Peer reviewedUniversidad de GranadaUniversidad de GranadaComisión Interministerial de Ciencia y Tecnología, CICYT (España)201820181997info:eu-repo/semantics/otherhttp://purl.org/coar/resource_type/c_3248info:eu-repo/semantics/bookParthttp://hdl.handle.net/10261/160718reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)EspañolMonografias Arte y Arqueología , nº 42Siinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1607182026-05-22T06:33:51Z
dc.title.none.fl_str_mv Geochemistry of Radiolarites from the Betic Cordillera: Implications for Source Determination of Raw Material in Archaeology
title Geochemistry of Radiolarites from the Betic Cordillera: Implications for Source Determination of Raw Material in Archaeology
spellingShingle Geochemistry of Radiolarites from the Betic Cordillera: Implications for Source Determination of Raw Material in Archaeology
Bustillo, Mª Ángeles
Radiolarite
Archaeology
Geochemistry
Source provenence
title_short Geochemistry of Radiolarites from the Betic Cordillera: Implications for Source Determination of Raw Material in Archaeology
title_full Geochemistry of Radiolarites from the Betic Cordillera: Implications for Source Determination of Raw Material in Archaeology
title_fullStr Geochemistry of Radiolarites from the Betic Cordillera: Implications for Source Determination of Raw Material in Archaeology
title_full_unstemmed Geochemistry of Radiolarites from the Betic Cordillera: Implications for Source Determination of Raw Material in Archaeology
title_sort Geochemistry of Radiolarites from the Betic Cordillera: Implications for Source Determination of Raw Material in Archaeology
dc.creator.none.fl_str_mv Bustillo, Mª Ángeles
Bustillo M.
author Bustillo, Mª Ángeles
author_facet Bustillo, Mª Ángeles
Bustillo M.
author_role author
author2 Bustillo M.
author2_role author
dc.contributor.none.fl_str_mv Universidad de Granada
Comisión Interministerial de Ciencia y Tecnología, CICYT (España)
dc.subject.none.fl_str_mv Radiolarite
Archaeology
Geochemistry
Source provenence
topic Radiolarite
Archaeology
Geochemistry
Source provenence
description In the Betic Cordillera (Subbetic Zone) radiolarian bearing sequences of the Middle to Late Jurassic age have been studied from a petrological and geochemical point of view. The objective of this paper is stablish the differentiating characteristics among the six chosen sections (AB, AG, SP, JH, SE and ZG) to use them as criteria for determination sources of the archaeological artefacts found in this area. The radiolarite beds are largely composed of quartz (50%-80%), with lesser amounts of calcite (≤ 30%), clay minerals (smectite, illite, and occasionally kaolinite) (10% to 35%) and hematites (≤ 5%). Analysis of major, minor, traces and rare earth elements is the best method to separate radiolarites among the studied sections. According to this, biogenic and total silica let us define two groups of sections: (a) AS and AG, and (b) ZG, SP and JH, and the SE section is not clearly defined. In the first group, AG and AS sections differentiate themselves when the percentage of biogenic silica (greater than 64%) is compared to the percentage of CaO. The AG samples adapt themselves to a typical regression line, and the AS samples are distant from the regression line. Furthermore the samples of the AB section clearly characterize themselves by Ce/Ce* and Lun / Lan indexes. In relation to the second group (≤ 61% of biogenic silica), the samples from the SP and JH sections are defined by a typical regression line when the percentage of biogenic silica is compared to the percentage of AI2 O3 or K20.
publishDate 1997
dc.date.none.fl_str_mv 1997
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/other
http://purl.org/coar/resource_type/c_3248
dc.type.openaire.fl_str_mv info:eu-repo/semantics/bookPart
format other
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/160718
url http://hdl.handle.net/10261/160718
dc.language.none.fl_str_mv Español
language_invalid_str_mv Español
dc.relation.none.fl_str_mv Monografias Arte y Arqueología , nº 42
Si
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidad de Granada
publisher.none.fl_str_mv Universidad de Granada
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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