Paratethys response to the Messinian salinity crisis

Christiaan G.C. van Baak, Wout Krijgsman, I. Magyar, Orsolya Sztanó, Larisa A. Golovina, Arjen Grothe, Thomas M. Hoyle, Oleg Mandic, Irina S. Patina, Sergey V. Popov, Eleonora P. Radionova, Marius Stoica, Iuliana Vasiliev

Research output: Contribution to journalReview article

9 Citations (Scopus)

Abstract

The Black Sea and Caspian Sea are the present-day remnants of a much larger epicontinental sea on the Eurasian continental interior, the Paratethys. During the late Miocene Messinian Salinity Crisis (MSC), a unique oceanographic event where 10% of the salt in the world's ocean got deposited in the deep desiccated basins of the Mediterranean, the Paratethys Sea was connected to the Mediterranean Sea. Unlike the Mediterranean, no salt is known to have been deposited in the Paratethys region at this time, yet a similar mechanism of deep desiccation (with a water level drop of up to 2 km occurring at 5.6 Ma) has been proposed in the past to explain the late Miocene and Pliocene Paratethys basin evolution. Here, we review the basin evolution, stratigraphy and subsurface data of the four main Paratethyan sub-basins to investigate the response to the Mediterranean Messinian event. We show that hypotheses of a Paratethys-wide desiccation synchronous to the Messinian Salinity Crisis climax at 5.6 Ma do not hold. Determinations of the magnitude of the sea level drop appear to have regularly been overestimated by speculative basin-to-margin interpretations, and often been disproven by increased age model resolution. In the Euxinian (Black Sea) Basin, the most recent estimates for the magnitude of sea level drop vary between 50 and 500 m, yet the timing is debated. Marginal outcrops in the Dacian Basin highlight multiple switches from shallow basinal to littoral and fluvial environments during the MSC interval, but no major water level drop coincides with the 5.6 Ma event. The Paleo-Danube deposits filling in the Pannonian Basin do not indicate any influence by the MSC and show prograding patterns into the deepwater lake Pannon. The dramatic expansion of the Paleo-Volga delta in the Caspian Sea is shown to be younger than the MSC, while estimates of the amount of water level drop vary widely due to the poorly understood contribution of tectonic processes. These changing perspectives and decreasing estimates of water level lowering are not surprising given the vast northern drainage of the Paratethys region. Precipitation and runoff from the Eurasian continent ensures a much more positive hydrological budget under isolated conditions than the vast negative hydrological budget of the Mediterranean Sea which requires constant compensation by inflowing oceanic waters.

Original languageEnglish
Pages (from-to)193-223
Number of pages31
JournalEarth-Science Reviews
Volume172
DOIs
Publication statusPublished - Sep 1 2017

Fingerprint

Paratethys
Messinian
salinity
water level
basin
basin evolution
desiccation
Miocene
sea level
salt
continental interior
inland sea
climax
Pliocene
outcrop
stratigraphy
drainage
runoff
tectonics
lake

Keywords

  • Hydrological budget
  • Late Miocene
  • Messinian Salinity Crisis
  • Paratethys
  • Pontian
  • Semi-isolated seas

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

van Baak, C. G. C., Krijgsman, W., Magyar, I., Sztanó, O., Golovina, L. A., Grothe, A., ... Vasiliev, I. (2017). Paratethys response to the Messinian salinity crisis. Earth-Science Reviews, 172, 193-223. https://doi.org/10.1016/j.earscirev.2017.07.015

Paratethys response to the Messinian salinity crisis. / van Baak, Christiaan G.C.; Krijgsman, Wout; Magyar, I.; Sztanó, Orsolya; Golovina, Larisa A.; Grothe, Arjen; Hoyle, Thomas M.; Mandic, Oleg; Patina, Irina S.; Popov, Sergey V.; Radionova, Eleonora P.; Stoica, Marius; Vasiliev, Iuliana.

In: Earth-Science Reviews, Vol. 172, 01.09.2017, p. 193-223.

Research output: Contribution to journalReview article

van Baak, CGC, Krijgsman, W, Magyar, I, Sztanó, O, Golovina, LA, Grothe, A, Hoyle, TM, Mandic, O, Patina, IS, Popov, SV, Radionova, EP, Stoica, M & Vasiliev, I 2017, 'Paratethys response to the Messinian salinity crisis', Earth-Science Reviews, vol. 172, pp. 193-223. https://doi.org/10.1016/j.earscirev.2017.07.015
van Baak CGC, Krijgsman W, Magyar I, Sztanó O, Golovina LA, Grothe A et al. Paratethys response to the Messinian salinity crisis. Earth-Science Reviews. 2017 Sep 1;172:193-223. https://doi.org/10.1016/j.earscirev.2017.07.015
van Baak, Christiaan G.C. ; Krijgsman, Wout ; Magyar, I. ; Sztanó, Orsolya ; Golovina, Larisa A. ; Grothe, Arjen ; Hoyle, Thomas M. ; Mandic, Oleg ; Patina, Irina S. ; Popov, Sergey V. ; Radionova, Eleonora P. ; Stoica, Marius ; Vasiliev, Iuliana. / Paratethys response to the Messinian salinity crisis. In: Earth-Science Reviews. 2017 ; Vol. 172. pp. 193-223.
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AU - Grothe, Arjen

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N2 - The Black Sea and Caspian Sea are the present-day remnants of a much larger epicontinental sea on the Eurasian continental interior, the Paratethys. During the late Miocene Messinian Salinity Crisis (MSC), a unique oceanographic event where 10% of the salt in the world's ocean got deposited in the deep desiccated basins of the Mediterranean, the Paratethys Sea was connected to the Mediterranean Sea. Unlike the Mediterranean, no salt is known to have been deposited in the Paratethys region at this time, yet a similar mechanism of deep desiccation (with a water level drop of up to 2 km occurring at 5.6 Ma) has been proposed in the past to explain the late Miocene and Pliocene Paratethys basin evolution. Here, we review the basin evolution, stratigraphy and subsurface data of the four main Paratethyan sub-basins to investigate the response to the Mediterranean Messinian event. We show that hypotheses of a Paratethys-wide desiccation synchronous to the Messinian Salinity Crisis climax at 5.6 Ma do not hold. Determinations of the magnitude of the sea level drop appear to have regularly been overestimated by speculative basin-to-margin interpretations, and often been disproven by increased age model resolution. In the Euxinian (Black Sea) Basin, the most recent estimates for the magnitude of sea level drop vary between 50 and 500 m, yet the timing is debated. Marginal outcrops in the Dacian Basin highlight multiple switches from shallow basinal to littoral and fluvial environments during the MSC interval, but no major water level drop coincides with the 5.6 Ma event. The Paleo-Danube deposits filling in the Pannonian Basin do not indicate any influence by the MSC and show prograding patterns into the deepwater lake Pannon. The dramatic expansion of the Paleo-Volga delta in the Caspian Sea is shown to be younger than the MSC, while estimates of the amount of water level drop vary widely due to the poorly understood contribution of tectonic processes. These changing perspectives and decreasing estimates of water level lowering are not surprising given the vast northern drainage of the Paratethys region. Precipitation and runoff from the Eurasian continent ensures a much more positive hydrological budget under isolated conditions than the vast negative hydrological budget of the Mediterranean Sea which requires constant compensation by inflowing oceanic waters.

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