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 Antarctic Peninsula that the newly formed oceanic crust in the Bransfield Strait is roughly 1.3 million years old. Unfortunately the deposition of sediments and extensive intrusions into the rift render computer modeling unreliable. Isolated occurrences of terrestrial volcanic activity are present, and are predominantly alkaline to tholeiitic in composition. Geology of the Antarctic Peninsula The Antarctic Peninsula, roughly 650 miles south of South America, is the northernmost portion of the continent of Antarctica. Like the associated Andes, the Antarctic Peninsula is an excellent example of ocean-continent collision resulting in subduction. The peninsula has experienced continuous subduction for over 200 million years, but