New Mexico Geological Society Annual Spring Meeting — Abstracts
Toward Standardization of Phanerozoic Stratigraphic Nomenclature in New Mexico
Steven M. Cather1, Kate E. Zeigler2, Greg H. Mack3 and Shari A. Kelley1
https://doi.org/10.56577/SM-2013.67
Recent decades have seen an unprecedented rate of change in the Phanerozoic stratigraphic nomenclature of
Here we criticize, and suggest alternatives to, aspects of recent nomenclatural changes for Pennsylvanian, Permian, Triassic, Jurassic, and Paleogene strata. Specifically, we disagree with: (1) the application of the terms Gray Mesa Formation and Atrasado Formation to Pennsylvanian strata of southern New Mexico; (2) raising of the Lower Permian Yeso Formation to group rank; (3) replacement of the term Meseta Blanca Member with Arroyo de Alamillo Formation in the Yeso; (4) raising the Los Vallos and San Ysidro members of the Yeso to formation rank; (5) the mapping utility of some formation-rank units of the Upper Triassic Chinle Group; (6) the replacement of the term Dockum by Chinle in eastern New Mexico; (7) replacement of the term Westwater Canyon Member of the Jurassic Morrison Formation with Salt Wash Member; and (8) the replacement of the term Baca Formation by the Hart Mine Formation for middle Eocene strata in eastern Socorro County.
2013 New Mexico Geological Society Annual Spring Meeting
April 12, 2013, Macey Center, New Mexico Tech campus, Socorro, NM
Online ISSN: 2834-5800