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Assessing Thermal Maturity through a Multi-Proxy Approach: A Case Study from the Permian Faraghan Formation (Zagros Basin, Southwest Iran)

2021-12Journal article Open access
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dc.contributor.authorSpina, Amália
dc.contributor.authorCirilli, Simonetta
dc.contributor.authorSorci, Andrea
dc.contributor.authorSchito, Andrea
dc.contributor.authorClayton, Geoff
dc.contributor.authorCorrado, Sveva
dc.contributor.authorFernandes, Paulo
dc.contributor.authorGalasso, Francesca
dc.contributor.authorMontesi, Giovanni
dc.contributor.authorPereira, Zélia
dc.contributor.authorRashidi, Mehrab
dc.contributor.authorRettori, Roberto
dc.date.accessioned2022-02-14T16:28:26Z
dc.date.available2022-02-14T16:28:26Z
dc.date.issued2021-12
dc.description.abstractABSTRACT: This study focuses on the thermal maturity of Permian deposits from the Zagros Basin, Southwest Iran, employing both optical methods (Thermal Alteration Index, Palynomorph Darkness Index, Vitrinite Reflectance, UV Fluorescence) and geochemical analyses of organic matter (Rock Eval Pyrolysis and MicroRaman spectroscopy) applied to the Faraghan Formation along two investigated Darreh Yas and Kuh e Faraghan surface sections. Furthermore, an integrated palynofacies and lithofacies analysis was carried out in order to integrate the few studies on the depositional environment. The Faraghan Formation, which is widely distributed in the Zagros area, generally consists of shale intercalated with sandstones and pebble conglomerates in the lower part, followed by a succession of sandstone, siltstone and shaly intercalations and with carbonate levels at the top. The integrated palynofacies and lithofacies data confirm a coastal depositional setting evolving upwards to a shallow marine carbonate environment upwards. Rock Eval Pyrolysis and Vitrinite Reflectance analysis showed that the organic matter from samples of the Darreh Yas and Kuh e Faraghan sections fall in the mature to postmature range with respect to the oil to gas generation window, restricting the thermal maturity range proposed by previous authors. Similar results were obtained with MicroRaman spectroscopy and optical analysis such as Thermal Alteration Index and UV Fluorescence. Palynomorph Darkness Index values were compared with Rock Eval Pyrolysis and vitrinite reflectance values and discussed for the first time in the late stage of oil generation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSpina, Amália... [et.al.] - Assessing Thermal Maturity through a Multi-Proxy Approach: A Case Study from the Permian Faraghan Formation (Zagros Basin, Southwest Iran). In: Geosciences, 2021, Vol. 11(12), article nº 484pt_PT
dc.identifier.doi10.3390/geosciences11120484pt_PT
dc.identifier.eissn2076-3263
dc.identifier.urihttp://hdl.handle.net/10400.9/3750
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationSPIRICBAS2018-SPINApt_PT
dc.relationRETTORIpt_PT
dc.relation.publisherversionhttps://doi.org/10.3390/geosciences11120484pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSW Iranpt_PT
dc.subjectZagros basinpt_PT
dc.subjectPermianpt_PT
dc.subjectFaraghan formationpt_PT
dc.subjectPalynofaciespt_PT
dc.subjectThermal maturitypt_PT
dc.subjectOrganic matterpt_PT
dc.titleAssessing Thermal Maturity through a Multi-Proxy Approach: A Case Study from the Permian Faraghan Formation (Zagros Basin, Southwest Iran)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleGeociencespt_PT
oaire.citation.volume11pt_PT
person.familyNameFernandes
person.familyNamePereira
person.givenNamePaulo
person.givenNameZélia
person.identifier422469
person.identifier.ciencia-id051D-A133-65D9
person.identifier.ciencia-id6C1B-ED1C-8F5D
person.identifier.orcid0000-0003-4888-0230
person.identifier.orcid0000-0003-3056-6219
person.identifier.ridJ-6577-2014
person.identifier.scopus-author-id57197129025
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb42caa3f-b216-443e-921f-a05b10543663
relation.isAuthorOfPublication5d2bf797-f915-4f53-ae53-166dedd0845a
relation.isAuthorOfPublication.latestForDiscoveryb42caa3f-b216-443e-921f-a05b10543663

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