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Large sea surface temperature, salinity, and productivity-preservation changes preceding the onset of the Messinian salinity crisis in the Eastern Mediterranean Sea

Vasiliev Iuliana, Karakitsios, Vassilis, Bouloubassi, Ioanna, Agiadi Konstantina, Kontakiotis, George, Antonarakou, Assimina, Triantaphyllou Maria V., Gogou, Alexandra, Kafousia Nefeli, De Rafelis Marc, Zarkogiannis Stergios D., Kaczmar Fanny, Parinos Constantine S., Pasadakis Nikolaos

Απλή Εγγραφή

URIhttp://purl.tuc.gr/dl/dias/9D2837C1-F188-4CFB-8320-306DBB71C5C6-
Αναγνωριστικόhttps://doi.org/10.1029/2018PA003438-
Αναγνωριστικόhttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018PA003438-
Γλώσσαen-
Μέγεθος23 pagesen
ΤίτλοςLarge sea surface temperature, salinity, and productivity-preservation changes preceding the onset of the Messinian salinity crisis in the Eastern Mediterranean Seaen
ΔημιουργόςVasiliev Iulianaen
ΔημιουργόςKarakitsios, Vassilisen
ΔημιουργόςBouloubassi, Ioannaen
ΔημιουργόςAgiadi Konstantinaen
ΔημιουργόςKontakiotis, Georgeen
ΔημιουργόςAntonarakou, Assiminaen
ΔημιουργόςTriantaphyllou Maria V.en
ΔημιουργόςGogou, Alexandraen
ΔημιουργόςKafousia Nefelien
ΔημιουργόςDe Rafelis Marcen
ΔημιουργόςZarkogiannis Stergios D.en
ΔημιουργόςKaczmar Fannyen
ΔημιουργόςParinos Constantine S.en
ΔημιουργόςPasadakis Nikolaosen
ΔημιουργόςΠασαδακης Νικοςel
ΕκδότηςAmerican Geophysical Unionen
ΠερίληψηThe Messinian Salinity Crisis (MSC; 5.97–5.33 Ma) is an enigmatic episode of paleoceanographic change, when kilometer-thick evaporite units were deposited in the Mediterranean basin. Here we use geochemical (biomarker and isotope) data to reconstruct sea surface temperature, salinity, and productivity-preservation changes in the Mediterranean basin just before the MSC. The proxy data indicate that the Mediterranean Sea was significantly saltier and colder between 6.415 and 6.151 Ma, than between 6.151 and 5.971 Ma. Salinity decrease at 6.151 Ma seems to be a relatively fast event just preceding the inception of a warming phase that lasted almost uninterrupted until the MSC onset. The water exchange with the Paratethys could have caused, along with the African rivers, an increased freshwater supply, resulting in normal marine Mediterranean waters between 6.151 and 5.971 Ma, despite the severe restriction of marine connections with the Atlantic at that time. Sea surface temperature changes determined a sharp drop in productivity and/or preservation of organic matter, marked by deposition of calcareous marls. Productivity and preservation were relatively high and constant until 6.01 Ma. Afterward, increased influx of terrestrial organic matter and probably enhanced water column stratification prevailed. Around 5.971 Ma, modifications in aquatic versus terrestrially derived biomarkers indicate changes in organic matter influx at the MSC onset.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2020-09-29-
Ημερομηνία Δημοσίευσης2019-
Θεματική ΚατηγορίαAlkenone-based SSTsen
Θεματική ΚατηγορίαBiomarkersen
Θεματική ΚατηγορίαOrganic geochemistryen
Θεματική ΚατηγορίαPaleoceanographyen
Θεματική ΚατηγορίαPaleosalinity reconstructionen
Βιβλιογραφική ΑναφοράI. Vasiliev, V. Karakitsios, I. Bouloubassi, K. Agiadi, G. Kontakiotis, A. Antonarakou, M. Triantaphyllou, A. Gogou, N. Kafousia, M. de Rafélis, S. Zarkogiannis, F. Kaczmar, C. Parinos and N. Pasadakis, "Large sea surface temperature, salinity, and productivity-preservation changes preceding the onset of the messinian salinity crisis in the Eastern Mediterranean Sea," Paleoceanogr. Paleoclimatol., vol. 34, no. 2, pp. 182-202, Feb. 2019. doi: 10.1029/2018PA003438en

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