What Does IAT Stand For?
IAT stands for Island Arc Tholeiite
Island Arc Tholeiite (IAT) refers to a specific type of basaltic volcanic rock formed in volcanic island arcs, characterized by its distinct geochemical composition. IAT typically showcases low to moderate concentration of iron, magnesium, and calcium, along with a higher silica content compared to normal tholeiites. This type of rock is primarily generated from the partial melting of the Earth's mantle above subduction zones, reflecting the unique tectonic and magmatic processes associated with oceanic-continental convergence. IAT plays a significant role in understanding the geological history and evolution of island arc systems.
Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym