Facies and age of the Oso Ridge Member (new), Abo Formation, Zuni Mountains, New Mexico
January 1, 1994
The Oso Ridge Member (new), at the base of the Abo Formation, nonconformably overlies Proterozoic rocks. The member consists of some 9m of conglomerate and arkose composed principally of fragments of the underlying Proterozoic metamorphic rocks; thin, fossiliferous limestone lenses are interbedded with the arkose. Biota from the lenses include a phylloid alga, foraminifers, conodonts, brachiopods, and molluscs. The age of the Oso Ridge Member is Virgilian Late Pennsylvanian) to Wolfcampian (Early Permian). -from Authors
Citation Information
| Publication Year | 1994 |
|---|---|
| Title | Facies and age of the Oso Ridge Member (new), Abo Formation, Zuni Mountains, New Mexico |
| Authors | A. K. Armstrong, R.G. Stamm, F. E. Kottlowski, B. L. Mamet, J. T. Dutro, D. J. Weary |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | New Mexico Geology |
| Index ID | 70017430 |
| Record Source | USGS Publications Warehouse |