APIM - Accessory Protocol Interface Module, All Acronyms, viewed August 14, 2016, <https://www.allacronyms.com/APIM/Accessory_Protocol_Interface_Module>.
Volcanic activity in rift valleys is important in several different ways to both geology and. archaeology. First, the rocks, such as rhyolite and basalt, and also ashes are important for. correlation and dating the deposits and archaeological sites in rift valleys.olcanic activity in rift valleys is important in several different ways to both geology and. archaeology. First, the rocks, such as rhyolite and basalt, and also ashes are important for. correlation and dating the deposits and archaeological sites in rift valleys.
The mixture of molten rock, crystals and dissolved gases from the mantle is called magma. When magma erupts to the Earth's surface, it is called lava. Not all volcanic eruptions happen near the boundaries of tectonic plates. Some eruptions happen in the middle of the plates.These eruptions are caused by mantle streams called plumes. Mantle plumes are formed when hot magma rises beneath the thinner, or weaker, areas of the Earth's crust, creating 'hot spots'. Volcanic islands are formed when mantle plumes form at the bottom of the ocean.ome eruptions happen in the middle of the plates. These eruptions are caused by mantle streams called plumes. Mantle plumes are formed when hot magma rises beneath the thinner, or weaker, areas of the Earth's crust, creating 'hot spots'. Volcanic islands are formed when mantle plumes form at the bottom of the ocean.