Great Rift Valley support its current biological variety. The southern section of the Rift Valley includes Lake Malawi, the third-deepest freshwater body in the world, reaching in depth and separating the Nyassa plateau of Northern Mozambique from Malawi; it ends in the Zambezi valley. Great Rift Valley The Great Rift Valley is a continuous geographic trench, approximately in length, that runs from Lebanon's Beqaa Valley in Asia to Mozambique in Southeastern Africa. The name continues in some usages, although it is today considered geologically imprecise as it combines features that are today regarded as separate, although related, rift and fault systems. Today, the
Geology of the Iberian Peninsula south west end of the Valencia trough. Volcanoes are from 8 to 1 Ma. The north east volcanic province at the east end of the Pyrenees, dates from 14 Ma to 11,000 years ago. Volcanoes first formed in the Empordà Basin, then in the La Selva Basin and finally in the Cerdanya Basin. Almeria and Murcia have alkaline volcanoes. The Valencia Trough lies between the Mediterranean north east coast of Spain, near Barcelona, and the Balearic Islands. This is a northeast to southwest oriented depression between the continental slope of the Iberian Peninsula and the slope off the shelf around