nieuwe zoekopdracht
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Hydrological changes in restricted basins: Insights from strontium isotopes on late Miocene‐Pliocene connectivity of the Eastern Paratethys (Dacian Basin, Romania)
Vasiliev, I.; Stoica, M.; Grothe, A.; Lazarev, S.; Palcu, D.V.; Van Baak, C.G.C.; Leeuw, A.; Sangiorgi, F.; Reichart, G.-J.; Davies, G.R.; Krijgsman, W. (2021). Hydrological changes in restricted basins: Insights from strontium isotopes on late Miocene‐Pliocene connectivity of the Eastern Paratethys (Dacian Basin, Romania). Geochem. Geophys. Geosyst. 22(7). https://dx.doi.org/10.1029/2020gc009369

Bijhorende info:
In: Geochemistry, Geophysics, Geosystems. American Geophysical Union: Washington, DC. ISSN 1525-2027; e-ISSN 1525-2027, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Author keywords
    strontium isotopes; marine influx; connectivity; transgression; Dacian Basin; ostracods

Auteurs  Top 
  • Vasiliev, I.
  • Stoica, M.
  • Grothe, A.
  • Lazarev, S.
  • Palcu, D.V.
  • Van Baak, C.G.C.
  • Leeuw, A.
  • Sangiorgi, F.
  • Reichart, G.-J., meer
  • Davies, G.R.
  • Krijgsman, W.

Abstract
    The Dacian Basin was uniquely situated to record late Miocene hydrological changes that influenced depositional environments and faunal dispersal patterns in Central Eurasia's mega-lake Paratethys. Differences between the high strontium isotope ratio (87Sr/86Sr) of the waters from Lake Pannon and local Carpathian rivers and low 87 Sr/86Sr of the Eastern Paratethys (Black Sea ‒ Caspian Sea) allow a thorough investigation of connectivity and water fluxes in the transient Dacian Basin. We present a detailed 87Sr/86 Sr record for the Dacian Basin, which provides an exceptional record of basin connectivity from the latest Tortonian (ca. 7.7 Ma) until the early Pleistocene (ca. 1.8 Ma). Data show that a late Tortonian transgression (7.6–7.4 Ma) started with an incursion of Eastern Paratethys waters into the Dacian Basin, after which local rivers became the dominant source for the mostly freshwater environments of the early Messinian. The regional Maeotian-Pontian transitional interval (6.3–5.9 Ma) records a second incursion of Eastern Paratethys waters, but this time with an additional marine (Mediterranean) influx coinciding with a short-lived salinity incursion. During the Messinian Salinity Crisis of the Mediterranean, the Dacian Basin progressively connected with the Eastern Paratethys (5.9–5.5 Ma), after which it became restricted during the peak Mediterranean lowstand (5.5 Ma) and filled with Lake Pannon and local river water (5.5–5.3 Ma). During the Plio-Pleistocene, the Dacian Basin reconnectedwith the, at that time isolated, Black Sea, which shows similar 87Sr/86Sr as in the Last Glacial Maximum.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ, voor meer informatie contacteer .