Title: Tectonics of west central New Mexico and adjacent Arizona: a remote sensing and field study in arid and semi-arid areas
Abstract: Large-scale fault zones in west-central New Mexico and eastern Arizona were mapped using conventional fieldwork aided by Landsat and Seasat images and high altitude air photos. These faults, which are of post-early Miocene age, trend NE-SW and N-S and extend over 200 km. The fault zones bound very large horst and graben blocks which, although located on the physiographic Colorado Plateau, are characteristic of Basin and Range deformation. Their intersection has been the locus of extensive Cenozoic volcanism. The procedure developed in this project permitted investigation of an area of about 1.8 x 10/sup 5/ km/sup 2/ of arid and semi-arid land whose structures previously were poorly defined.