Oligocene volcanic rocks are present in significantly west Texas in the large Bend location. A blanket of Miocene sediments known as the Ogallala formation from the western significant plains region is a crucial aquifer.[164] Found much from an active plate tectonic boundary, Texas has no volcanoes and several earthquakes.[a hundred https://www.highrevenuenetwork.com/dv3budnw?key=cca7eafa5b3220b0530a18e061dc648d