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Palynology of the Albian–Turonian sediments from the Sumbe region, Kwanza Basin (Angola): Implications for paleoenvironment, paleoclimate, and paleogeography

2024-12Journal article Open access
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dc.contributor.authorRodrigues, Cristina F.A.
dc.contributor.authorMendes, Márcia
dc.contributor.authorPereira, Zélia
dc.contributor.authorNsungani, P.C.
dc.contributor.authorFernandes, Paulo
dc.contributor.authorDuarte, L. V.
dc.contributor.authorChitangueleca, Belarmino
dc.contributor.authorSebastião, Lumen
dc.contributor.authorAida, Benedito
dc.contributor.authorDegli Esposti, Davide
dc.contributor.authorFreitas, Domingos
dc.date.accessioned2024-08-30T09:05:45Z
dc.date.available2024-08-30T09:05:45Z
dc.date.issued2024-12
dc.date.updated2024-08-23T09:43:28Z
dc.description.abstractABSTRACT: Palynological investigations in the Sumbe region of the Kwanza Basin, Angola, have identified Albian to Turonian assemblages in four sections of the Quissonde Facies of the Mucanzo, Cabo Ledo, and Itombe formations. These studies aimed to determine their biostratigraphic ages and infer paleoenvironmental, paleoclimatic, and paleogeographic models. The presence of Odontochitina costata, Palaeohystrichophora infusorioides, and Xiphophoridium alatum cysts supports an upper Albian to lower Cenomanian age for the Mucanzo Formation. Litosphaeridium siphoniphorum cyst and the Elateroplicites africaensis pollen found In the Cabo Ledo Formation suggest a Cenomanian age, while Conosphaeridium striatoconum, Heterosphaeridium difficile, and Dinogymnium acuminatum supports a Turonian age for the lower part of the Itombe Formation. All samples predominantly contain fluorescent amorphous organic matter (AOM) derived from phytoplankton degradation, with increasing AOM in the uppermost units, indicating inner neritic marine deposition under dysoxic-anoxic conditions. During the Lower to mid-Cretaceous, the Gondwana breakup caused significant changes, with the palynological indicating a Tethyan affinity with some high-latitude taxa, suggesting a cosmopolitan distribution. The subtropical to tropical nature of the assemblages, along with high-latitude species, indicates a mid-Cretaceous water connection between the Central Atlantic and the South Atlantic oceans, extending to the Kwanza Basin.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRodrigues, C., Mendes, M., Pereira, Z., Nsungani, P.C., Fernandes, P., Duarte, L., Chitangueleca, B., Sebastião, L., Aida, B., Esposti, D.D. & Freitas, D. (2024) Palynology of the Albian–Turonian sediments from the Sumbe region, Kwanza Basin (Angola): Implications for paleoenvironment, paleoclimate, and paleogeography. In: Cretaceous Research, 2024, vol. 164, article nº 105953. https://doi.org/10.1016/j.cretres.2024.105953pt_PT
dc.identifier.doi10.1016/j.cretres.2024.105953pt_PT
dc.identifier.issn0195-6671
dc.identifier.slugcv-prod-4134325
dc.identifier.urihttp://hdl.handle.net/10400.9/4328
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://doi.org/10.1016/j.cretres.2024.105953pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectBiostratigraphypt_PT
dc.subjectPalynologypt_PT
dc.subjectPalynofaciespt_PT
dc.subjectDinoflagellate cystspt_PT
dc.subjectKwanza basinpt_PT
dc.subjectAngolapt_PT
dc.titlePalynology of the Albian–Turonian sediments from the Sumbe region, Kwanza Basin (Angola): Implications for paleoenvironment, paleoclimate, and paleogeographypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleCretaceous Researchpt_PT
oaire.citation.volume164pt_PT
person.familyNameSilva Mendes
person.familyNamePereira
person.familyNameFernandes
person.familyNameDuarte
person.givenNameMárcia Cristina
person.givenNameZélia
person.givenNamePaulo
person.givenNameLuis
person.identifier422469
person.identifier.ciencia-idE71E-1CB5-D774
person.identifier.ciencia-id6C1B-ED1C-8F5D
person.identifier.ciencia-id051D-A133-65D9
person.identifier.orcid0000-0003-2290-891X
person.identifier.orcid0000-0003-3056-6219
person.identifier.orcid0000-0003-4888-0230
person.identifier.orcid0000-0002-9025-5896
person.identifier.ridJ-6577-2014
person.identifier.ridF-5282-2013
person.identifier.scopus-author-id57197129025
person.identifier.scopus-author-id7005630206
rcaap.cv.cienciaid6C1B-ED1C-8F5D | Zélia Pereira
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication62179ed8-3ffe-4060-8b9c-e29e4f3e0d27
relation.isAuthorOfPublication5d2bf797-f915-4f53-ae53-166dedd0845a
relation.isAuthorOfPublicationb42caa3f-b216-443e-921f-a05b10543663
relation.isAuthorOfPublication627bc54b-733a-433e-b8ab-8932bee6a7dd
relation.isAuthorOfPublication.latestForDiscoveryb42caa3f-b216-443e-921f-a05b10543663

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