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New Mexico Geology — Back-issues

Print ISSN: 0196-948X (prior to 2015)
Online ISSN: 2837-6420


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Volume: 44, 2023

Volume 44, Number 2
View as PDF   (5.10 MB)

Number: 2

Full-Issue (5.10 MB PDF)
Cover Image: Hogbacks of the upper Oligocene to middle Miocene Hayner Ranch Formation.
— William R. Seager

Hogbacks of the upper Oligocene to middle Miocene Hayner Ranch Formation, located adjacent to San Diego Mountain and along the southern flank of the Tonuco uplift in northern Doña Ana County, New Mexico. As much as 1.1 km in total thickness, only 150–200 m in the middle part of the formation is exposed here. At this location, the formation consists of interbedded mid and distal alluvial fan deposits, derived from a nascent Caballo uplift and deposited in the "early rift" Hayner Ranch half graben. Ridge on left skyline is approximately 35–40 m high; Sierra de las Uvas on the far skyline. View looks southwest.

  1. San Diego Mountain: A “Rosetta Stone” for Interpreting the Cenozoic Tectonic Evolution of South-Central New Mexico (3.59 MB PDF), pp. 24-62. [View Abstract]
    — William R. Seager, Shari A. Kelley, Jacob O. Thacker, and Richard E. Kelley
  2. Highlighted Publications (777 KB PDF), p. 63.