New Mexico Mineral Symposium — Abstracts

Mid-Tertiary igneous activity in the northern Delaware Basin of south¬eastern New Mexico and adjacent Texas resulted in dikes, "plugs", and even ore mineralization. Known intrusive bodies lie parallel and conjugate to prevailing regional tectonic trends. Many more features of igneous origin may be hidden under Cenozoic cover.

Guadalupian bentonites witness to volcanic activity nearby. Correct interpretation should shed new light on plate configuration and dynamics during the Upper Permian.