Late Miocene evaporite geochemistry of Lorca and Fortuna basins (Eastern Betics, SE Spain): Evidence of restriction and continentalization

Simple item page
dc.contributor.authorGarcía-Veigas, Jen_AU
dc.contributor.authorGilbert, Len_AU
dc.contributor.authorCendón, DIen_AU
dc.contributor.authorArtiaga, Den_AU
dc.contributor.authorCorbí, Hen_AU
dc.contributor.authorSoria, JMen_AU
dc.contributor.authorLowenstein, TKen_AU
dc.contributor.authorSanz, Een_AU
dc.date.accessioned2021-11-25T03:38:52Zen_AU
dc.date.available2021-11-25T03:38:52Zen_AU
dc.date.issued2019-09-26en_AU
dc.date.statistics2021-10-14en_AU
dc.description.abstractThe Lorca and Fortuna basins are two intramontane Neogene basins located in the eastern Betic Cordillera (SE Spain). During the Late Tortonian—Early Messinian, marine and continental evaporites precipitated in these basins as a consequence of increased marine restriction and isolation. Here we show a stratigraphic correlation between the evaporite records of these basins based on geochemical indicators. We use SO4 isotope compositions and Sr isotopic ratios in gypsum, and halite Br contents to characterize these units and to identify the marine or continental source of the waters feeding the evaporite basins. In addition, we review the available chronological information used to date these evaporites in Lorca (La Serrata Fm), including a thick saline deposit, that we correlate with the First Evaporitic Group in Fortuna (Los Baños Fm). This correlation is also supported by micropalaeontological data, giving a Late Tortonian age for this sequence. The Second Evaporitic Group, (Chicamo Fm), and the Third Evaporitic Group (Rambla Salada Fm) developed only in Fortuna during the Messinian. According to the palaeogeographical scheme presented here, the evaporites of the Lorca and Fortuna basins were formed during the Late Tortonian—Early Messinian, close to the Betic Seaway closure. Sulphate isotope compositions and Sr isotopic ratios of the Ribera Gypsum Mb, at the base of the Rambla Salada Fm (Fortuna basin), match those of the Late Messinian selenite gypsum beds in San Miguel de Salinas, in the near Bajo Segura basin (40 km to the East), and other Messinian Salinity Crisis gypsum deposits in the Mediterranean. According to these geochemical indicators and the uncertainty of the chronology of this unit, the assignment of the Rambla Salada Fm to the MSC cannot be ruled out. © 2019 The Authors. Basin Research © 2019 John Wiley & Sons Ltd, European Association of Geoscientists & Engineers and International Association of Sedimentologistsen_AU
dc.description.sponsorshipDepartament d'Innovació, Universitats i Empresa, Generalitat de Catalunya. Grant Number: 217-SGR-829 Ministerio de Economía y Competitividad. Grant Numbers: CGL-2013-42689, CGL-2016-79458en_AU
dc.identifier.citationGarcía-Veigas, J., Gibert, L., Cendón, D. I., Artiaga, D., Corbí, H., Soria, J. M., Lowenstein. T. K., & Sanz, E. (2020). Late Miocene evaporite geochemistry of Lorca and Fortuna basins (Eastern Betics, SE Spain): evidence of restriction and continentalization. Bason Research 32(5), 916-948. doi:10.1111/bre.12408en_AU
dc.identifier.issn0950-091Xen_AU
dc.identifier.issue5en_AU
dc.identifier.journaltitleBason Researchen_AU
dc.identifier.pagination916-948en_AU
dc.identifier.urihttps://doi.org/10.1111/bre.12408en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12296en_AU
dc.identifier.volume32en_AU
dc.language.isoenen_AU
dc.publisherJohn Wiley & Sons, Inc.en_AU
dc.subjectSedimentary basinsen_AU
dc.subjectSpainen_AU
dc.subjectMiocene epochen_AU
dc.subjectAquatic ecosystemsen_AU
dc.subjectPrecipitationen_AU
dc.subjectEvaporationen_AU
dc.subjectGeochemistryen_AU
dc.subjectStable isotopesen_AU
dc.subjectGypsumen_AU
dc.titleLate Miocene evaporite geochemistry of Lorca and Fortuna basins (Eastern Betics, SE Spain): Evidence of restriction and continentalizationen_AU
dc.typeJournal Articleen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles