Sediments in Karabogas Bay and Southeastern Caspian Sea38.5N 51.6E
Sediments, possibly mixed with phytoplankton growth, color the southeastern shores of the Caspian Sea. Some are also visible in Karabogas Bay, a shallow inundated depression in the northwestern corner of Turkmenistan that forms a lagoon of the Caspian Sea. Linked to the sea via a very narrow opening in a rocky ridge, the salinity of the bay is about 35%, compared to the Caspian Sea’s 1.2% and 3.5% for the world’s oceans. Because of the exceptionally high salinity it has practically no marine vegetation.