Publicación: Gorgona Island (Colombia) as a terrestrial analog of Syrtis Major (Mars): Evidence from geochemical meta-analyses and compositional figures of merit
| dc.contributor.author | David Tovar, María Angelica | |
| dc.contributor.author | Leal, M.A. | |
| dc.contributor.author | De Pablo, M. A. | |
| dc.contributor.author | San Martin-Lobos, J. | |
| dc.contributor.author | Tchegliakova, N. | |
| dc.contributor.author | Vélez, F. | |
| dc.contributor.author | Molina, A. | |
| dc.contributor.author | Leone, G. | |
| dc.contributor.author | Sanchez , Jimena | |
| dc.contributor.author | A. Torres | |
| dc.contributor.author | Bonilla, M.A. | |
| dc.contributor.author | Acevedo Barrios, Rosa Leonor | |
| dc.contributor.author | Cancino-Escalante, G. | |
| dc.contributor.researcher | Rosa Acevedo-Barrios | |
| dc.contributor.researchgroup | Grupo de Investigación Estudios Químicos y Biológicos | |
| dc.contributor.seedbeds | Semillero de Investigación en Ciencias Ambientales | |
| dc.coverage.temporal | Comunidad cientifica y academica en general | |
| dc.date.accessioned | 2026-05-11T18:56:26Z | |
| dc.date.issued | 2026-04-28 | |
| dc.description | Contiene mapas, gráficos | |
| dc.description.abstract | The identification of terrestrial analogs is a key strategy for advancing our understanding of the geological and geochemical evolution of Mars. This study evaluates the potential of Gorgona Island (Colombian Pacific) as a geochemical analog of Syrtis Major. Gorgona Island hosts a diversity of mafic and ultramafic lithologies, including basalts, gabbros, picrites, dunites, wehrlites, and also komatiites, which are the youngest reported on Earth. To assess the degree of compositional similarity, a meta-analysis of previously published data was conducted, comparing geochemical information from Gorgona Island with that derived from orbital instruments on Mars (TES, GRS, OMEGA, and CRISM) and from SNC meteorites. The analysis focused on classical discriminant ratios (Al₂O₃/TiO₂) and Compositional Figures of Merit (FOMc), applied both to individual datasets and to averaged values weighted by the areal proportion of lithologies on Gorgona Island. The results show that enriched and depleted basalts, along with Spinifex-Textured komatiites (containing <18% MgO), exhibit a high degree of geochemical similarity with Syrtis Major (FOMc >0.87), whereas dunites and wehrlites consistently display low values. The positive slope of the Al₂O₃/TiO₂ ratio observed in both Gorgona and Mars is characteristic of MORB-type oceanic crust, reinforcing the link between Terrestrial MORB/OIB and Martian Basalts described by previous studies. These findings highlight Gorgona Island as a robust terrestrial analog of Syrtis Major, providing a natural laboratory for investigating magmatic processes relevant to Mars. Furthermore, this work outlines future directions, including the acquisition of new high-resolution geochemical data from Gorgona Island and the integration of recent in situ data from Mars, with the aim of refining comparative models of planetary magmatism. | |
| dc.description.researcharea | Microbiología y toxicología ambiental | |
| dc.description.tableofcontents | 1. Introduction 2.Materials and methods 3. Results 4.Discussion 5.Conclusions 6. References | |
| dc.description.technicalinfo | No Aplica | |
| dc.format.extent | 18 páginas | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | D. Tovar, M. Leal, M.A. de Pablo, J. San Martin-Lobos, N. Tchegliakova, F. Vélez, A. Molina, G. Leone, J. Sánchez, A. Torres, A. Bonilla, R. Acevedo-Barrios, G. Cancino-Escalante,Gorgona Island (Colombia) as a terrestrial analog of Syrtis Major (Mars): Evidence from geochemical meta-analyses and compositional figures of merit,Icarus, Volume 456, 2026,117133,ISSN 0019-1035, https://doi.org/10.1016/j.icarus.2026.117133. | |
| dc.identifier.doi | 10.1016/j.icarus.2026.117133 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12585/14446 | |
| dc.language.iso | eng | |
| dc.publisher | Icarus | |
| dc.publisher.place | Colombia | |
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| dc.rights.accessrights | info:eu-repo/semantics/openAccess | |
| dc.rights.coar | http://purl.org/coar/access_right/c_abf2 | |
| dc.rights.license | Atribución 4.0 Internacional (CC BY 4.0) | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject.ddc | 550 - Ciencias de la tierra::552 - Petrología | |
| dc.subject.lemb | Geochemistry | |
| dc.subject.lemb | Planetary geology | |
| dc.subject.lemb | Igneous rocks | |
| dc.subject.lemb | Basalts | |
| dc.subject.lemb | Petrology | |
| dc.subject.lemb | Planetary geological evolution | |
| dc.subject.lemb | Volcanic islands — Colombia | |
| dc.subject.lemb | Gorgona island (Colombia) | |
| dc.subject.lemb | Magmatism | |
| dc.subject.lemb | Comparative geology | |
| dc.subject.ocde | 1. Ciencias Naturales | |
| dc.subject.ods | ODS 15: Vida de ecosistemas terrestres. Proteger, restablecer y promover el uso sostenible de los ecosistemas terrestres, gestionar sosteniblemente los bosques, luchar contra la desertificación, detener e invertir la degradación de las tierras y detener la pérdida de biodiversidad | |
| dc.subject.proposal | Planetary geochemistry | |
| dc.subject.proposal | Terrestrial analogs | |
| dc.subject.proposal | Mineralogy | |
| dc.subject.proposal | Ultramafic rocks | |
| dc.subject.proposal | Figures of merit | |
| dc.title | Gorgona Island (Colombia) as a terrestrial analog of Syrtis Major (Mars): Evidence from geochemical meta-analyses and compositional figures of merit | |
| dc.type | Artículo de revista | |
| dc.type.coar | http://purl.org/coar/resource_type/c_18cf | |
| dc.type.coarversion | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| dc.type.content | Text | |
| dc.type.driver | info:eu-repo/semantics/article | |
| dc.type.redcol | http://purl.org/redcol/resource_type/ART | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dcterms.audience | Comunidad Científica y académica. | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 74ceb186-b60b-4210-9548-9a89e1a8f37b | |
| relation.isAuthorOfPublication.latestForDiscovery | 74ceb186-b60b-4210-9548-9a89e1a8f37b |
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