Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy)
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/28514 |
Resumo: | Vermiculations are among the less known structures occurring in underground environments. They are thin, irregular and discontinuous deposits of incoherent particles, with diverse morphology (i.e. dots, dendritic, hieroglyphic), colour (red, brownish, grey, white) and size (Parenzan, 1961), typically found on the walls and roofs of natural or artificial caves all over the world (Hill and Forti, 1997). The origin of vermiculations is widely debated due to the development of data-driven theories still hindered by the scarcity of quantitative analyses on their chemistry and biology (Bini et al., 1978). The aim of this study was to investigate the geochemical characteristics of vermiculations from one of the most important karst systems of southern Italy, the Pertosa-Auletta Cave, using an integrated approach involving elemental, mineralogical and microscopic analyses. The research provides the first quantitative record of all these features in vermiculations, giving a comprehensive overview on their geochemical nature and contributing to the understanding of their genesis. The vermiculations of Pertosa-Auletta Cave exhibit an extraordinary diversity in their morphology and colour, the widest recorded from a single karst system to date. Elemental analyses also highlighted wide variations in C, Ca, Co, Cr, Cu, Fe, K, Mg, Mn, N, Na, Ni, P, S, Ti, V and Zn concentrations among vermiculations. Field emission scanning electron microscopy with Energy Dispersive X-ray Spectrometry, as well as X-ray Diffractometry, showed that vermiculations are mainly composed of calcite, associated to clays, quartz and various biologically-mediated CaCO3 crystallization features (rods and vaterite spheres). The constant association of clay minerals, occurring along cavities and niches of calcite, with microbial-like filaments, and the presence of microboring and etching patterns, indicate that microbial activity may play an important role in the development of vermiculations. |
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Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy)Vermiculations are among the less known structures occurring in underground environments. They are thin, irregular and discontinuous deposits of incoherent particles, with diverse morphology (i.e. dots, dendritic, hieroglyphic), colour (red, brownish, grey, white) and size (Parenzan, 1961), typically found on the walls and roofs of natural or artificial caves all over the world (Hill and Forti, 1997). The origin of vermiculations is widely debated due to the development of data-driven theories still hindered by the scarcity of quantitative analyses on their chemistry and biology (Bini et al., 1978). The aim of this study was to investigate the geochemical characteristics of vermiculations from one of the most important karst systems of southern Italy, the Pertosa-Auletta Cave, using an integrated approach involving elemental, mineralogical and microscopic analyses. The research provides the first quantitative record of all these features in vermiculations, giving a comprehensive overview on their geochemical nature and contributing to the understanding of their genesis. The vermiculations of Pertosa-Auletta Cave exhibit an extraordinary diversity in their morphology and colour, the widest recorded from a single karst system to date. Elemental analyses also highlighted wide variations in C, Ca, Co, Cr, Cu, Fe, K, Mg, Mn, N, Na, Ni, P, S, Ti, V and Zn concentrations among vermiculations. Field emission scanning electron microscopy with Energy Dispersive X-ray Spectrometry, as well as X-ray Diffractometry, showed that vermiculations are mainly composed of calcite, associated to clays, quartz and various biologically-mediated CaCO3 crystallization features (rods and vaterite spheres). The constant association of clay minerals, occurring along cavities and niches of calcite, with microbial-like filaments, and the presence of microboring and etching patterns, indicate that microbial activity may play an important role in the development of vermiculations.27th INTERNATIONAL KARSTOLOGICAL SCHOOL “CLASSICAL KARST”2020-12-03T15:50:47Z2020-12-032019-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://hdl.handle.net/10174/28514http://hdl.handle.net/10174/28514engAddesso, R.; Bellino, A.; D’Angeli, I.M.; De Waele, J.; Miller, A.Z.; Carbone, C.; Baldantoni, D. (2019) Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy). 27th INTERNATIONAL KARSTOLOGICAL SCHOOL “CLASSICAL KARST”, 17-21 June 2019, Postojna, Slovenia.simnaonaondndndndanamiller@uevora.ptndndAddesso, R.Bellino, A.D’Angeli, I.M.De Waele, J.Miller, A.Z.Carbone, C.Baldantoni, D.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:24:44Zoai:dspace.uevora.pt:10174/28514Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:18:20.827673Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy) |
title |
Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy) |
spellingShingle |
Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy) Addesso, R. |
title_short |
Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy) |
title_full |
Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy) |
title_fullStr |
Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy) |
title_full_unstemmed |
Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy) |
title_sort |
Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy) |
author |
Addesso, R. |
author_facet |
Addesso, R. Bellino, A. D’Angeli, I.M. De Waele, J. Miller, A.Z. Carbone, C. Baldantoni, D. |
author_role |
author |
author2 |
Bellino, A. D’Angeli, I.M. De Waele, J. Miller, A.Z. Carbone, C. Baldantoni, D. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Addesso, R. Bellino, A. D’Angeli, I.M. De Waele, J. Miller, A.Z. Carbone, C. Baldantoni, D. |
description |
Vermiculations are among the less known structures occurring in underground environments. They are thin, irregular and discontinuous deposits of incoherent particles, with diverse morphology (i.e. dots, dendritic, hieroglyphic), colour (red, brownish, grey, white) and size (Parenzan, 1961), typically found on the walls and roofs of natural or artificial caves all over the world (Hill and Forti, 1997). The origin of vermiculations is widely debated due to the development of data-driven theories still hindered by the scarcity of quantitative analyses on their chemistry and biology (Bini et al., 1978). The aim of this study was to investigate the geochemical characteristics of vermiculations from one of the most important karst systems of southern Italy, the Pertosa-Auletta Cave, using an integrated approach involving elemental, mineralogical and microscopic analyses. The research provides the first quantitative record of all these features in vermiculations, giving a comprehensive overview on their geochemical nature and contributing to the understanding of their genesis. The vermiculations of Pertosa-Auletta Cave exhibit an extraordinary diversity in their morphology and colour, the widest recorded from a single karst system to date. Elemental analyses also highlighted wide variations in C, Ca, Co, Cr, Cu, Fe, K, Mg, Mn, N, Na, Ni, P, S, Ti, V and Zn concentrations among vermiculations. Field emission scanning electron microscopy with Energy Dispersive X-ray Spectrometry, as well as X-ray Diffractometry, showed that vermiculations are mainly composed of calcite, associated to clays, quartz and various biologically-mediated CaCO3 crystallization features (rods and vaterite spheres). The constant association of clay minerals, occurring along cavities and niches of calcite, with microbial-like filaments, and the presence of microboring and etching patterns, indicate that microbial activity may play an important role in the development of vermiculations. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-06-01T00:00:00Z 2020-12-03T15:50:47Z 2020-12-03 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/28514 http://hdl.handle.net/10174/28514 |
url |
http://hdl.handle.net/10174/28514 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Addesso, R.; Bellino, A.; D’Angeli, I.M.; De Waele, J.; Miller, A.Z.; Carbone, C.; Baldantoni, D. (2019) Integrated approach for the geochemical characterization of vermiculations from Pertosa-Auletta Cave (Southern Italy). 27th INTERNATIONAL KARSTOLOGICAL SCHOOL “CLASSICAL KARST”, 17-21 June 2019, Postojna, Slovenia. sim nao nao nd nd nd nd anamiller@uevora.pt nd nd |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
27th INTERNATIONAL KARSTOLOGICAL SCHOOL “CLASSICAL KARST” |
publisher.none.fl_str_mv |
27th INTERNATIONAL KARSTOLOGICAL SCHOOL “CLASSICAL KARST” |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799136664979767296 |