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Verfasst von:Rachid, Jihad [VerfasserIn]   i
 Hssaida, Touria [VerfasserIn]   i
 Hamoumi, Naima [VerfasserIn]   i
 Terhzaz, Loubna [VerfasserIn]   i
 Spezzaferri, Silvia [VerfasserIn]   i
 Frank, Norbert [VerfasserIn]   i
 Daghor, Lamia [VerfasserIn]   i
Titel:Palynological study of carbonated mounds during the Holocene along the Atlantic and Mediterranean Moroccan margins
Verf.angabe:Jihad Rachid, Touria Hssaida, Naima Hamoumi, Loubna Terhzaz, Silvia Spezzaferri, Norbert Frank, Lamia Daghor
E-Jahr:2020
Jahr:1 April 2020
Umfang:15 S.
Fussnoten:Gesehen am 16.09.2020
Titel Quelle:Enthalten in: Review of palaeobotany and palynology
Ort Quelle:Amsterdam [u.a.] : Elsevier Science, 1967
Jahr Quelle:2020
Band/Heft Quelle:278(2020) Artikel-Nummer 104213, 15 Seiten
ISSN Quelle:0034-6667
 1879-0615
Abstract:A palynological study of carbonate mounds of Atlantic and Mediterranean Moroccan margins was conducted on sediment boxcores MD13-3441, MD13-3456, MD13-3461, MD13-3465, MD13-3468 collected during the oceanographic cruise MD 194/Eurofleet - GATEWAY, which took place on June 2013. The organic remaining revealed a dominance of dinoflagellate cysts over the continental fraction, which showed very low rates. The use of pollen data, despite their low representativity, is proving to be a valuable tool for the paleoclimate interpretation. The palynological quantitative and qualitative analysis revealed the evolution of the paleoenvironment and climate change of the carbonate mounds during this study interval. The terminal Pleistocene-basal Holocene passage highlighted by the dominance of cold taxa of dinoflagellate cysts. The presence and dominance of tree and shrub pollen coupled by the presence of altitudinal conifers confirmed a cold climate in both continental and marine environments. During the lower-middle Holocene, the variations in the relative frequencies of dinoflagellate cyst associations reflect the evolution of the paleoenvironment from inner neritic to oceanic. The recorded microflora shows a cyclicity during the lower Holocene from arid to semi-arid between 10.07 and 9.85 ka (the abundance of herbaceous and steppe), to become arid again around (9.69 ka) by the consistently high rate of herbaceous and steppe. In contrast, the paleoclimate recorded during the Middle Holocene is semi-humid to 6.29 ka (high rate of trees and shrubs) and evolves to a warm dry climate at 5.9-5.14 ka, reflected by the abundance of herbaceous and steppe.
DOI:doi:10.1016/j.revpalbo.2020.104213
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://dx.doi.org/10.1016/j.revpalbo.2020.104213
 Volltext: http://www.sciencedirect.com/science/article/pii/S0034666719303628
 DOI: https://doi.org/10.1016/j.revpalbo.2020.104213
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Atlantic and Mediterranean Moroccan margins
 Carbonated mound
 Dinoflagellate cysts
 Holocene
 Palynology
K10plus-PPN:1733116710
Verknüpfungen:→ Zeitschrift

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