Microbialites at Gusev Crater, Mars

Autores
Bianciardi, Giorgio; Rizzo, Vincenzo; Farias, Maria Eugenia; Cantasano, Nicola
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Mars Exploration Rover Spirit investigated plains at Gusev crater, where sedimentary rocks are present. The Spirit rover’s Athena morphological investigation shows microstructures organized in intertwined filaments of microspherules: a texture we have also found on samples of terrestrial stromatolites and other microbialites. We performed a quantitative image analysis to compare 45 microbialites samplings with 50 rover’s ones (approximately 25,000/20,000 microstructures). Contours were extracted and morphometric indexes obtained: geometric and algorithmic complexities, entropy, tortuosity, minimum and maximum diameters. Terrestrial and Martian textures resulted multifractals, while terrestrial abiogenic minerals showed a simple fractal structure. Mean values and confidence intervals from the Martian images overlapped perfectly with those from terrestrial samples. The probability of this occurring by chance was less than 1/28 , p<0.004. Our work show the presumptive evidence of microbialites in the Martian outcroppings explored by “Spirit”, confirming our previous results concerning the Martian outcroppings explored by Opportunity at Meridiani Planum: unicellular life was widespread on the ancient Mars.
Fil: Bianciardi, Giorgio. Università degli Studi di Siena; Italia
Fil: Rizzo, Vincenzo. Consiglio Nazionale delle Ricerche; Italia
Fil: Farias, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina
Fil: Cantasano, Nicola. National Research Council; Italia
Materia
Mars
Stromatolites
Microbialites
Fractal Analysis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/76705
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Microbialites at Gusev Crater, MarsBianciardi, GiorgioRizzo, VincenzoFarias, Maria EugeniaCantasano, NicolaMarsStromatolitesMicrobialitesFractal Analysishttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The Mars Exploration Rover Spirit investigated plains at Gusev crater, where sedimentary rocks are present. The Spirit rover’s Athena morphological investigation shows microstructures organized in intertwined filaments of microspherules: a texture we have also found on samples of terrestrial stromatolites and other microbialites. We performed a quantitative image analysis to compare 45 microbialites samplings with 50 rover’s ones (approximately 25,000/20,000 microstructures). Contours were extracted and morphometric indexes obtained: geometric and algorithmic complexities, entropy, tortuosity, minimum and maximum diameters. Terrestrial and Martian textures resulted multifractals, while terrestrial abiogenic minerals showed a simple fractal structure. Mean values and confidence intervals from the Martian images overlapped perfectly with those from terrestrial samples. The probability of this occurring by chance was less than 1/28 , p<0.004. Our work show the presumptive evidence of microbialites in the Martian outcroppings explored by “Spirit”, confirming our previous results concerning the Martian outcroppings explored by Opportunity at Meridiani Planum: unicellular life was widespread on the ancient Mars.Fil: Bianciardi, Giorgio. Università degli Studi di Siena; ItaliaFil: Rizzo, Vincenzo. Consiglio Nazionale delle Ricerche; ItaliaFil: Farias, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; ArgentinaFil: Cantasano, Nicola. National Research Council; ItaliaScience Editors2015-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/76705Bianciardi, Giorgio; Rizzo, Vincenzo; Farias, Maria Eugenia; Cantasano, Nicola; Microbialites at Gusev Crater, Mars; Science Editors; Journal of Astrobiology & Outreach; 03; 05; 11-2015; 1-82332-2519CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4172/2332-2519.1000143info:eu-repo/semantics/altIdentifier/url/https://www.longdom.org/open-access/microbialites-at-gusev-crater-mars-2332-2519-1000143.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:22:35Zoai:ri.conicet.gov.ar:11336/76705instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:22:35.873CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Microbialites at Gusev Crater, Mars
title Microbialites at Gusev Crater, Mars
spellingShingle Microbialites at Gusev Crater, Mars
Bianciardi, Giorgio
Mars
Stromatolites
Microbialites
Fractal Analysis
title_short Microbialites at Gusev Crater, Mars
title_full Microbialites at Gusev Crater, Mars
title_fullStr Microbialites at Gusev Crater, Mars
title_full_unstemmed Microbialites at Gusev Crater, Mars
title_sort Microbialites at Gusev Crater, Mars
dc.creator.none.fl_str_mv Bianciardi, Giorgio
Rizzo, Vincenzo
Farias, Maria Eugenia
Cantasano, Nicola
author Bianciardi, Giorgio
author_facet Bianciardi, Giorgio
Rizzo, Vincenzo
Farias, Maria Eugenia
Cantasano, Nicola
author_role author
author2 Rizzo, Vincenzo
Farias, Maria Eugenia
Cantasano, Nicola
author2_role author
author
author
dc.subject.none.fl_str_mv Mars
Stromatolites
Microbialites
Fractal Analysis
topic Mars
Stromatolites
Microbialites
Fractal Analysis
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Mars Exploration Rover Spirit investigated plains at Gusev crater, where sedimentary rocks are present. The Spirit rover’s Athena morphological investigation shows microstructures organized in intertwined filaments of microspherules: a texture we have also found on samples of terrestrial stromatolites and other microbialites. We performed a quantitative image analysis to compare 45 microbialites samplings with 50 rover’s ones (approximately 25,000/20,000 microstructures). Contours were extracted and morphometric indexes obtained: geometric and algorithmic complexities, entropy, tortuosity, minimum and maximum diameters. Terrestrial and Martian textures resulted multifractals, while terrestrial abiogenic minerals showed a simple fractal structure. Mean values and confidence intervals from the Martian images overlapped perfectly with those from terrestrial samples. The probability of this occurring by chance was less than 1/28 , p<0.004. Our work show the presumptive evidence of microbialites in the Martian outcroppings explored by “Spirit”, confirming our previous results concerning the Martian outcroppings explored by Opportunity at Meridiani Planum: unicellular life was widespread on the ancient Mars.
Fil: Bianciardi, Giorgio. Università degli Studi di Siena; Italia
Fil: Rizzo, Vincenzo. Consiglio Nazionale delle Ricerche; Italia
Fil: Farias, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina
Fil: Cantasano, Nicola. National Research Council; Italia
description The Mars Exploration Rover Spirit investigated plains at Gusev crater, where sedimentary rocks are present. The Spirit rover’s Athena morphological investigation shows microstructures organized in intertwined filaments of microspherules: a texture we have also found on samples of terrestrial stromatolites and other microbialites. We performed a quantitative image analysis to compare 45 microbialites samplings with 50 rover’s ones (approximately 25,000/20,000 microstructures). Contours were extracted and morphometric indexes obtained: geometric and algorithmic complexities, entropy, tortuosity, minimum and maximum diameters. Terrestrial and Martian textures resulted multifractals, while terrestrial abiogenic minerals showed a simple fractal structure. Mean values and confidence intervals from the Martian images overlapped perfectly with those from terrestrial samples. The probability of this occurring by chance was less than 1/28 , p<0.004. Our work show the presumptive evidence of microbialites in the Martian outcroppings explored by “Spirit”, confirming our previous results concerning the Martian outcroppings explored by Opportunity at Meridiani Planum: unicellular life was widespread on the ancient Mars.
publishDate 2015
dc.date.none.fl_str_mv 2015-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/76705
Bianciardi, Giorgio; Rizzo, Vincenzo; Farias, Maria Eugenia; Cantasano, Nicola; Microbialites at Gusev Crater, Mars; Science Editors; Journal of Astrobiology & Outreach; 03; 05; 11-2015; 1-8
2332-2519
CONICET Digital
CONICET
url http://hdl.handle.net/11336/76705
identifier_str_mv Bianciardi, Giorgio; Rizzo, Vincenzo; Farias, Maria Eugenia; Cantasano, Nicola; Microbialites at Gusev Crater, Mars; Science Editors; Journal of Astrobiology & Outreach; 03; 05; 11-2015; 1-8
2332-2519
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4172/2332-2519.1000143
info:eu-repo/semantics/altIdentifier/url/https://www.longdom.org/open-access/microbialites-at-gusev-crater-mars-2332-2519-1000143.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Science Editors
publisher.none.fl_str_mv Science Editors
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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