Guidebook of the Border Region

Albian Alcaparra alluvium ammonites andesite anticline Aptian Arizona Bartlett basalt Basin and Range basin fill beds Big Hatchet Mountains Black Mountain Bliss Sandstone caliche Camp Rice carbonate County Cuchillo deposits dolomite dunes east escarpment facies fault fauna feet flow FORMACION Formation fossils Franklin Mountains Fusselman geologic geomorphic gravel gray Guidebook Hawley Hill horizon Horquilla Hueco bolson intrusive Juárez Jurassic Kottlowski Laguna Lake Palomas late limestone Lucero Luna County Mesa Mesilla bolson meters Mexican Mexico miles minerals Mines Montoya Moun northeastern Chihuahua northern Chihuahua Ordovician outcrops Paleozoic Paso Pennsylvanian Permian phenocrysts Picacho plagioclase Pleistocene pluvial Lake Potrillo quartz Quaternary rhyolite Roadcut rocks Samalayuca sand sandstone Santa Fe Group sediments sequence shale Sierra del Presidio Sierra Madre siltstone slope soil southern southwestern strata stratigraphic surface Tertiary Texas thick tion tuff unit upper Valley Villa Ahumada volcanic zone