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Preliminary late Miocene palynomorph assemblages from the Quifangondo and Luanda formations, Onshore Kwanza Basin, Angola

2021-06Journal article Restricted access
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dc.contributor.authorRodrigues, C. F.
dc.contributor.authorPereira, Z.
dc.contributor.authorMendes, M.
dc.contributor.authorNsungani, P. C.
dc.contributor.authorFernandes, P.
dc.contributor.authorLopes, Gilda
dc.contributor.authorDuarte, L., V
dc.contributor.authorAboelkomsan, W.
dc.contributor.authorTaylor, E.
dc.contributor.authorTyrrell, M.
dc.contributor.authorFernando, M. F.
dc.contributor.authorMachado, V
dc.date.accessioned2021-09-08T10:57:51Z
dc.date.available2021-09-08T10:57:51Z
dc.date.issued2021-06
dc.description.abstractA Miocene succession exposed at the Cabo Ledo and Miradouro da Lua sections in the Onshore Kwanza Basin, Angola, was examined for palynology. Palynomorphs of preliminary late Miocene age identified are presented herein. The upper part of the Quifangondo Formation is dated as middle Tortonian in age based on the co-occurrence of the pollen grain Fenestrites spinosus and the dinoflagellate species Selenopemphix armageddonensis. The palynomorph signature indicates a middle neritic marine environment dominated by dinoflagellate cyst taxa. A late Miocene (late Tortonian to Messinian) age is also documented for the first time at the base of the Luanda Formation based on the co-occurrence of the pollen taxa Echitricolporites spinosus, Fenestrites spinosus, Fenestrites longispinosus, Monoporopollenites annulatus, and Retistephanocolpites gracilis. The palynomorph signature of this unit reflects an inner neritic marine (coastal/lagoon transitional) environment dominated by terrestrial palynomorphs and very rare dinoflagellate cyst taxa. The present research contributes data for improving the stratigraphical framework of the Quifangondo and Luanda formations, both of which are recognized as the main potential source rocks and reservoirs of the Post-Salt Paleogene/Neogene Petroleum System of the Kwanza Basin. This significant contribution provides important biostratigraphic and palaeoenvironmental data for defining the vital temporal horizons of these settings in a basin where petroleum exploration is of interest.
dc.identifier.doi10.1016/j.jafrearsci.2021.104141
dc.identifier.issn1464-343X
dc.identifier.urihttp://hdl.handle.net/10400.1/16957
dc.language.isoeng
dc.peerreviewedyes
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.subjectQuifangondo formation
dc.subjectLuanda formation
dc.subjectPalynostratigraphy
dc.subjectMiocene
dc.subjectOnshore Kwanza basin
dc.subjectAngola
dc.subject.otherGeology
dc.titlePreliminary late Miocene palynomorph assemblages from the Quifangondo and Luanda formations, Onshore Kwanza Basin, Angola
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage104141
oaire.citation.titleJournal of African Earth Sciences
oaire.citation.volume178
person.familyNameRodrigues Lopes
person.givenNameGilda Maria
person.identifier417492
person.identifier.orcid0000-0002-6866-5127
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication5cd06189-201b-4b3a-b8a7-d5c63941f17c
relation.isAuthorOfPublication.latestForDiscovery5cd06189-201b-4b3a-b8a7-d5c63941f17c

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