1. Basins represent another major type of landform of plate interiors. 2. Although volcanoes and associated volcanic landforms are clearly concentrated along plate margins, significant occurrences are also to be found in plate interiors. 3. Numerous mechanisms have been suggested to explain the often significant uplift that has occurred in plate interiors but none seems to be applicable to all cases. 4. A major problem with hot spots as a general explanation for uplift in plate interiors is that many elevated continental regions in such areas show no evidence of volcanism. 5. Rift valleys are important landforms on continental crust in plate interiors where tensional stresses predominate in the lithosphere. |