Western Asia the Mediterranean Sea. To the north, the region is delimited from Europe by the Caucasus Mountains, to the southwest, it is delimited from Africa by the Isthmus of Suez, while to the east, the region adjoins Central Asia and South Asia. The Dasht-e Kavir and Dasht-e Lut deserts in eastern Iran naturally delimit the region somewhat from Asia itself. Three major tectonic plates converge on Western Asia, including the African, Eurasian, and Arabian plates. The boundaries between the tectonic plates make up the Azores-Gibraltar Ridge, extending across North Africa, the Red Sea, and into Iran. The Arabian Plate is moving
Plymouth Sound, Shores and Cliffs Plymouth Sound, Shores and Cliffs Plymouth Sound, Shores and Cliffs is a Site of Special Scientific Interest (SSSI) around the Plymouth Sound, a large area of water where the River Plym and Tamar meet. It stretches across the two ceremonial counties of Devon and Cornwall and the unitary authority area of Plymouth. It contains fossils of plants and sea creatures and its cliffs show a timeline of the Middle to Early Devonian period hundreds of millions of years ago. Lower to early Middle Devonian units of rock are visible from sections through the coastal cliffs and intertidal zones, which were