Persian Gulf flooding of the basin started 15,000 years ago due to rising sea levels of the Holocene glacial retreat. This inland sea of some is connected to the Gulf of Oman in the east by the Strait of Hormuz; and its western end is marked by the major river delta of the Shatt al-Arab, which carries the waters of the Euphrates and the Tigris. In Iran this is called "Arvand Rood", where "Rood" means "river". Its length is , with Iran covering most of the northern coast and Saudi Arabia most of the southern coast. The Persian Gulf is about wide
Gulf of Venezuela in 1941, but not the maritime. The main factor that gives importance to these waters is the fact that it connects the Caribbean Sea and Lake Maracaibo, an important source of crude petroleum for Venezuela. The gulf therefore helps connect the wells and refineries in Lake Maracaibo to the world markets. Gulf of Venezuela The Gulf of Venezuela is a gulf of the Caribbean Sea bounded by the Venezuelan states of Zulia and Falcón and by Guajira Department, Colombia. A strait connects it with Maracaibo Lake to the south. The Gulf is located in the north of South America, between