Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana
The first late-Cambrian aged palynomorph assemblage of Bolivia is presented. The sampled material comes from the Cambro-Ordovician Iscayachi Formation cropping out in the Antenna of the Sierra de Sama, Tarija department, southern Bolivia. The palynomorph assemblage occurs in levels correlated to the...
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Universidad de Barcelona
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ftconicet:oai:ri.conicet.gov.ar:11336/1843 2023-10-09T21:49:18+02:00 Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana Vergel, Maria del Milagro Aceñolaza, Guillermo Federico Araoz, Lucia application/pdf http://hdl.handle.net/11336/1843 eng eng Universidad de Barcelona info:eu-repo/semantics/altIdentifier/url/http://revistes.ub.edu/index.php/GEOACTA/article/view/7943/9845 info:eu-repo/semantics/altIdentifier/url/http://www.redalyc.org/articulo.oa?id=50527426003 info:eu-repo/semantics/altIdentifier/url/http://dialnet.unirioja.es/servlet/articulo?codigo=4435589 http://hdl.handle.net/11336/1843 Vergel, Maria del Milagro; Aceñolaza, Guillermo Federico; Araoz, Lucia; Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana; Universidad de Barcelona; Geologica Acta; 11; 2; 6-2013; 167-176 1695-6133 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Acritarchs Upper Cambrian Cordillera Oriental Bolivia Manganese Trace Elements Oxidation Weathering https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet 2023-09-24T19:50:15Z The first late-Cambrian aged palynomorph assemblage of Bolivia is presented. The sampled material comes from the Cambro-Ordovician Iscayachi Formation cropping out in the Antenna of the Sierra de Sama, Tarija department, southern Bolivia. The palynomorph assemblage occurs in levels correlated to the Parabolina (Neoparabolina) frequens argentina trilobite biozone. It is comprised of Acanthodiacrodium spp., Cristallinium cambriense, Cy- matiogalea cf. C. aspergillum, C. velifera, C. virgulta, Dasydiacrodium spp., Eliasum llaniscum, Impluviculus multiangularis, Ladogella rommelaerei, Ladogella sp., Leiofusa sp., Leiosphaeridia sp., Lophosphaeridium sp., Lusatia? sp., Micrhystridium sp., Poikilofusa squama, Poikilofusa sp., Polygonium dentatum, Retisphaeridium brayense, Saharidia fragilis, Solisphaeridium akrochordum, S. lucidum, Timofeevia phosphoritica, Timofeevia microretis, Vulcanisphaera africana and V. turbata. The assemblage provides elements of comparison with pre- viously reported palynofloras in northern Argentina, eastern Newfoundland, southwestern Sardinia, Algeria, nor- thern Spain, Baltica and Avalonia (Arctic Russia, East-European Platform). All microphytoplancton are indicative of cold water affinities as expected from the western margin of Gondwana, showing some Baltic affinities as well. Fil: Vergel, Maria del Milagro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Tucumán. Instituto Superior de Correlación Geológica; Argentina Fil: Aceñolaza, Guillermo Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Tucumán. Instituto Superior de Correlación Geológica; Argentina Fil: Araoz, Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Tucumán. Instituto Superior de Correlación Geológica; Argentina Article in Journal/Newspaper Arctic Newfoundland CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Arctic Argentina Tucumán ENVELOPE(-63.200,-63.200,-64.683,-64.683) |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Acritarchs Upper Cambrian Cordillera Oriental Bolivia Manganese Trace Elements Oxidation Weathering https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Acritarchs Upper Cambrian Cordillera Oriental Bolivia Manganese Trace Elements Oxidation Weathering https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Vergel, Maria del Milagro Aceñolaza, Guillermo Federico Araoz, Lucia Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana |
topic_facet |
Acritarchs Upper Cambrian Cordillera Oriental Bolivia Manganese Trace Elements Oxidation Weathering https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The first late-Cambrian aged palynomorph assemblage of Bolivia is presented. The sampled material comes from the Cambro-Ordovician Iscayachi Formation cropping out in the Antenna of the Sierra de Sama, Tarija department, southern Bolivia. The palynomorph assemblage occurs in levels correlated to the Parabolina (Neoparabolina) frequens argentina trilobite biozone. It is comprised of Acanthodiacrodium spp., Cristallinium cambriense, Cy- matiogalea cf. C. aspergillum, C. velifera, C. virgulta, Dasydiacrodium spp., Eliasum llaniscum, Impluviculus multiangularis, Ladogella rommelaerei, Ladogella sp., Leiofusa sp., Leiosphaeridia sp., Lophosphaeridium sp., Lusatia? sp., Micrhystridium sp., Poikilofusa squama, Poikilofusa sp., Polygonium dentatum, Retisphaeridium brayense, Saharidia fragilis, Solisphaeridium akrochordum, S. lucidum, Timofeevia phosphoritica, Timofeevia microretis, Vulcanisphaera africana and V. turbata. The assemblage provides elements of comparison with pre- viously reported palynofloras in northern Argentina, eastern Newfoundland, southwestern Sardinia, Algeria, nor- thern Spain, Baltica and Avalonia (Arctic Russia, East-European Platform). All microphytoplancton are indicative of cold water affinities as expected from the western margin of Gondwana, showing some Baltic affinities as well. Fil: Vergel, Maria del Milagro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Tucumán. Instituto Superior de Correlación Geológica; Argentina Fil: Aceñolaza, Guillermo Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Tucumán. Instituto Superior de Correlación Geológica; Argentina Fil: Araoz, Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Tucumán. Instituto Superior de Correlación Geológica; Argentina |
format |
Article in Journal/Newspaper |
author |
Vergel, Maria del Milagro Aceñolaza, Guillermo Federico Araoz, Lucia |
author_facet |
Vergel, Maria del Milagro Aceñolaza, Guillermo Federico Araoz, Lucia |
author_sort |
Vergel, Maria del Milagro |
title |
Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana |
title_short |
Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana |
title_full |
Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana |
title_fullStr |
Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana |
title_full_unstemmed |
Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana |
title_sort |
palynology of the iscayachi formation (cambro-ordovician) from the cordillera oriental of southern bolivia: new data from the western margin of gondwana |
publisher |
Universidad de Barcelona |
url |
http://hdl.handle.net/11336/1843 |
long_lat |
ENVELOPE(-63.200,-63.200,-64.683,-64.683) |
geographic |
Arctic Argentina Tucumán |
geographic_facet |
Arctic Argentina Tucumán |
genre |
Arctic Newfoundland |
genre_facet |
Arctic Newfoundland |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://revistes.ub.edu/index.php/GEOACTA/article/view/7943/9845 info:eu-repo/semantics/altIdentifier/url/http://www.redalyc.org/articulo.oa?id=50527426003 info:eu-repo/semantics/altIdentifier/url/http://dialnet.unirioja.es/servlet/articulo?codigo=4435589 http://hdl.handle.net/11336/1843 Vergel, Maria del Milagro; Aceñolaza, Guillermo Federico; Araoz, Lucia; Palynology of the Iscayachi Formation (Cambro-Ordovician) from the Cordillera Oriental of Southern Bolivia: New data from the western margin of Gondwana; Universidad de Barcelona; Geologica Acta; 11; 2; 6-2013; 167-176 1695-6133 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
_version_ |
1779312331799396352 |