Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/50084
DC FieldValueLanguage
dc.contributor.authorCampeny, Marcen_US
dc.contributor.authorKamenetsky, Vadim S.en_US
dc.contributor.authorMelgarejo, Joan C.en_US
dc.contributor.authorMangas, Joséen_US
dc.contributor.authorManuel, Joséen_US
dc.contributor.authorAlfonso, Puraen_US
dc.contributor.authorKamenetsky, Maya B.en_US
dc.contributor.authorBambi, Aurora C.J.M.en_US
dc.contributor.authorGonçalves, Antonio O.en_US
dc.date.accessioned2018-11-24T13:09:01Z-
dc.date.available2018-11-24T13:09:01Z-
dc.date.issued2015en_US
dc.identifier.issn0024-4937en_US
dc.identifier.urihttp://hdl.handle.net/10553/50084-
dc.description.abstractA set of small volcanic edifices with tuff ring and maar morphologies occur in the Catanda area, which is the only locality with extrusive carbonatites reported in Angola. Four outcrops of carbonatite lavas have been identified in this region and considering the mineralogical, textural and compositional features, we classify them as: silicocarbonatites (1), calciocarbonatites (2) and secondary calciocarbonatites produced by the alteration of primary natrocarbonatites (3). Even with their differences, we interpret these lava types as having been a single carbonatite suite related to the same parental magma. We have also estimated the composition of the parental magma from a study of melt inclusions hosted in magnetite microphenocrysts from all of these lavas. Melt inclusions revealed the presence of 13 different alkali-rich phases (e.g., nyerereite, shortite, halite and sylvite) that argues for an alkaline composition of the Catanda parental melts. Mineralogical, textural, compositional and isotopic features of some Catanda lavas are also similar to those described in altered natrocarbonatite localities worldwide such as Tinderet or Kerimasi, leading to our conclusion that the formation of some Catanda calciocarbonatite lavas was related to the occurrence of natrocarbonatite volcanism in this area. On the other hand, silicocarbonatite lavas, which are enriched in periclase, present very different mineralogical, compositional and isotopic features in comparison to the rest of Catanda lavas. We conclude that its formation was probably related to the decarbonation of primary dolomite bearing carbonatites.en_US
dc.languageengen_US
dc.publisher0024-4937-
dc.relation.ispartofLithosen_US
dc.sourceLithos [ISSN 0024-4937], v. 232, p. 1-11en_US
dc.subject250611 Mineralogíaen_US
dc.subject2503 Geoquímicaen_US
dc.subject250613 Petrología ígnea y metamórficaen_US
dc.subject.otherCarbonatitic lavasen_US
dc.subject.otherNatrocarbonatitesen_US
dc.subject.otherSilicocarbonatitesen_US
dc.subject.otherAngolaen_US
dc.subject.otherCatandaen_US
dc.titleCarbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints on the parental melten_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.lithos.2015.06.016
dc.identifier.scopus84936946448-
dc.identifier.isi000361408400001
dc.contributor.authorscopusid15071510500-
dc.contributor.authorscopusid7003580339-
dc.contributor.authorscopusid6604069814-
dc.contributor.authorscopusid7003264328-
dc.contributor.authorscopusid56114594700-
dc.contributor.authorscopusid7004256039-
dc.contributor.authorscopusid6603094683-
dc.contributor.authorscopusid55177055800-
dc.contributor.authorscopusid55177184200-
dc.description.lastpage11-
dc.description.firstpage1-
dc.relation.volume232-
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.contributor.daisngid4323203
dc.contributor.daisngid81758
dc.contributor.daisngid436367
dc.contributor.daisngid1765426
dc.contributor.daisngid577784
dc.contributor.daisngid29951766
dc.contributor.daisngid742087
dc.contributor.daisngid8492442
dc.contributor.daisngid2050260
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Campeny, M
dc.contributor.wosstandardWOS:Kamenetsky, VS
dc.contributor.wosstandardWOS:Melgarejo, JC
dc.contributor.wosstandardWOS:Mangas, J
dc.contributor.wosstandardWOS:Manuel, J
dc.contributor.wosstandardWOS:Alfonso, P
dc.contributor.wosstandardWOS:Kamenetsky, MB
dc.contributor.wosstandardWOS:Bambi, ACJM
dc.contributor.wosstandardWOS:Goncalves, AO
dc.date.coverdateSeptiembre 2015
dc.identifier.ulpgces
dc.description.sjr2,847
dc.description.jcr3,723
dc.description.sjrqQ1
dc.description.jcrqQ1
dc.description.scieSCIE
item.fulltextSin texto completo-
item.grantfulltextnone-
crisitem.author.deptGIR IOCAG:Geología Aplicada y Regional-
crisitem.author.deptIU de Oceanografía y Cambio Global-
crisitem.author.deptDepartamento de Física-
crisitem.author.orcid0000-0002-3286-743X-
crisitem.author.parentorgIU de Oceanografía y Cambio Global-
crisitem.author.fullNameMangas Viñuela, José-
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