New Mexico Geological Society · Socorro, NM

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NEW MEXICO GEOLOGICAL SOCIETY · SPRING MEETING

Spring Meeting Abstracts

Explore research presented at the NMGS Annual Spring Meeting. Browse abstracts from 1983 onward, choose a meeting year, or open an abstract to read the full text.

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1991

Depositional controls on sandstone petrology and diagenesis of the Point Lookout Sandstones, San Juan Basin, southwestern Colorado

David L. Hicks Department of Geology, University of New Mexico, Albuquerque, NM, 87131 Sedimentary processes active within a depositional environment to a large degree determine the texture and mineralogy of the deposited sediment and influence

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Laramide stratigraphy and structural geology of the northern Little Hatchet Mountains, southwestern New Mexico

Scott A. Hodgson1, George T. Basabilvazo1 and Timothy F. Lawton1 1Department of Earth Sciences, New Mexico State University, Las Cruces, NM, 88003 Detailed mapping (1:12000) and stratigraphic studies have shown that two distinct clastic synorogenic

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Mineralogical trends in the detrital clay fraction of the Westwater Canyon Member of the Morrison Formation, San Juan Basin, New Mexico

Christopher W. Inoue1 and Laura J. Crossey1 1Dept. of Geology, University of New Mexico, Albuquerque, NM, 87131 Authigenic clay minerals are useful indicators of the water/rock interactions in a clastic unit. Mixed-layer illite/smectite (l/S) clays

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Vertical distribution of sulfur in a coal seam of the Lee Ranch mine, McKinely County, New Mexico

Abraham Araya1 and F. J. Kuellmer1 1New Mexico Institute of Mining and Technology, Socorro, NM, 87801 The Lee Ranch Mine is located in the southeasterly part of the San Juan basin (approximately 30 miles northeast

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Carbonate depositional environments of the Middle Permian (Leonardian) San Andres Formation in the southern Sacramento Mountains, Otero County, New Mexico

Christopher F. Whitman1 and Russell E. Clemons1 1Department of Earth Sciences, New Mexico State University, Las Cruces, NM, 88003 Ninety-seven meters of the basal, massive- to medium-bedded, Rio Bonito Member of the San Andres Formation

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A stable-isotope study of soil water, Sevilleta Refuge, New Mexico

Russell J. Vanlandingham1 and Andrew R. Campbell1 1Geoscience Department, New Mexico Tech, Socorro, NM, 87801 In May of 1989 drill core samples were collected from two sites for a stable isotopic study of meteoric recharge

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Type section of the Paleocene Nacimiento Formation, San Juan Basin, northwestern New Mexico

Thomas E. Williamson1 and Spencer G. Lucas2 1Department of Geology, University of New Mexico, Albuquerque, NM, 87131 2New Mexico Museum of Natural History, P.O. Box 7010, Albuquerque, NM, New Mexico, 87194 The Nacimiento Formation (TN)

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Gas analysis of fluid inclusions–Application toward precious-metal exploration, Steeple Rock district, Grant County, New Mexico

Randy K. Ruff1 and David I. Norman1 1New Mexico Institute of Mining and Technology, Dept. of Geological Sciences, Socorro, NM, 87801 Boiling of hydrothennal fluids is a mechanism commonly associated with deposition of epithennal ore

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Juxtaposition of contrasting Proterozoic tectonometamorphic units in the northern Taos Range, New Mexico

Jane N. Pedrick1 and Jeffrey A. Grambling1 1Department of Geology, University of New Mexico, Albuquerque, NM, 87131 Three different tectonometamorphic units are juxtaposed across ductile shear zones in the northern Taos Range. Published U-Pb zircon

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Structural geology of the Gonzales Precambrian block, east of Socorro, New Mexico

Clay T. Smith1, Robert M. Colpitts1 and W. Gage1 1Department of Geoscience, New Mexico Institute of Mining and Technology, Socorro, NM, 87801 Various investigators have interpreted exposures of Precambrian rocks east of Socorro as “islands”

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