andezittípusú

Andezittípusú is a Hungarian term that translates to "andesitic type" in English. It is used in geology to describe rocks that are compositionally similar to andesite. Andesite itself is a volcanic rock of intermediate composition, meaning it falls between basalt and rhyolite. Its mineral content typically includes plagioclase feldspar, with lesser amounts of pyroxene, amphibole, and sometimes biotite.

Rocks classified as andezittípusú are characterized by this intermediate chemical and mineralogical composition. This means they have a silica content generally ranging from 52% to 63%. They often exhibit a fine-grained texture due to relatively rapid cooling of lava. While andesite is the most common volcanic rock of this type, the term andezittípusú can also encompass intrusive igneous rocks with a similar composition, such as diorite. The formation of andesitic rocks is commonly associated with subduction zones, where oceanic crust melts and rises to form volcanic arcs. These rocks are found in many volcanic regions around the world, including the Andes Mountains, from which andesite derives its name. Their presence and characteristics provide valuable insights into the tectonic setting and magmatic processes of a region.