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Mud volcanoes occur both on land and oceans, but their occurrence is generally known on limited areas. Many of the European mud volcanoes structures are known from Romania, where their number exceeds 40. The most impressive and famous of the Romanian mud volcanoes are situated near the Buzau town, at Berca, in the Romanian Carpathian bend area. Other Romanian mud volcanoes are situated in the Transylvanian Basin and in the SW part of the country (Banat region). This paper presents the geological setting, including...

The Black Sea is the largest marine anoxic basin in the world, connected with the Mediterranean through the Bosporus Strait, Marmara Sea and Dardanelles Strait. During global ocean low-stands, the Black Sea basin was isolated from the Mediterranean evolving as a fresh-brackish giant water body. In the Late Pliocene ? Pleistocene times, the Black Sea experienced periodic influxes of water from the Caspian Sea through the Manych Corridor. These hydrological changes that occurred in the Black Sea basin had greatly in...