Laminated and nodular Castile Formation basinal evaporites. These nodules are probably
secondary features, perhaps resulting from the >1km of burial to which the unit was once
subjected. Outcrop along U.S. Highway 62-180
about 1.5 km north of Texas-
New Mexico border, Eddy Co., NM. Hammer at left for scale.

© Peter A. Scholle, 1999

Guadalupe Mtns. geology —— Scholle home page —— NM Bureau staff page —— NM Bureau main page