What was the first ocean the Caspian Sea lost connection with, beginning the process of turning what was once a gulf into an isolated body of water? – 2017

What was the first ocean the Caspian Sea lost connection with, beginning the process of turning what was once a gulf into an isolated body of water?




Pacific Oceans.
The Caspian Sea has also unusual origins. It is a remnant of the ancient northern gulf of the Thetis Ocean, which used to connect the Atlantic and the Pacific Oceans.




Along with the Black Sea and the Sea of Azov to its west (which are not entirely landlocked) and the Aral Sea to its east, the Caspian is a remnant of the ancient Paratethys Sea. As long as 65 million years ago, the Paratethys was connected to both the Atlantic and Indo-Pacific Oceans.









Caspian Sea
Lake
The Caspian Sea is the largest enclosed inland body of water on Earth by area, variously classed as the world’s largest lake or a full-fledged sea. It is in an endorheic basin located between Europe and Asia.
Area: 371,000 km²
Length: 1,030 km
Surface elevation: -28 m
Mean depth: 211 m
Catchment area: 3.626 million km²
Fish: Brown trout, Caspian kutum, Alosa braschnikowi
Islands: Ashuradeh, Chechen’ Island, Zhanbay Island, Zanbil, more

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