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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1996
40Ar/39Ar dating of fluid inclusions in quartz from the Capitan Pluton, New Mexico
Andrew R. Campbell1, M. T. Heizler1 and N. W. Dunbar1 1Department of Earth and Environmental Sciences, and New Mexico Bureau of Mines and Mineral Resources, New Mexico Tech, Socorro, NM, 87801 The 300 km3 Cllpitan
Structurally dependent source-rock maturity and kerogen facies, Estancia Basin, New Mexico
Ronald F. Broadhead New Mexico Bureau of Mines and Mineral Resources, Socorro, NM, 87801 The Estancia basin of central New Mexico is an asymmetric, north-south trending structural depression that originated during the Pennsylvanian. The present-day
The Volcanic History and Landscape Evolution of the Raton-Clayton Volcanic Field
Joseph R. Stroud Department of Earth and Environmental Sciences, New Mexico Tech, Socorro, NM, 87801 Recent 40Ar/39Ar data obtained in the Raton-Clayton Volcanic Field has provided a concise record of the eruptive history and landscape
Evolution of igneous veins intruding basanite at El Porticito, Quemado, New Mexico
Robert R. Horning1, Nelia W. Dunbar1, Philip R. Kyle1 and W. Scott Baldridge2 1Department of Geosciences New Mexico Institute of Mining and Technology, Socorro, NM, 87801 2Los Alamos National Laboratory, Los Alamos, NM, 87545 Field
A reevaluation of the vertebrate icnofauna of the Mesa Rica Sandstone and Pajarito Formations (Lower Cretaceous: Late Albian), Clayton Lake State Park
Adrian P. Hunt1 and Spencer G. Lucas2 1Mesalands Museum, Mesa Technical College, 911 South Tenth Street, Tucumcari, NM, New Mexico, 88401 2New Mexico Museum of Natural History and Science, 1801 Mountain Road, NW, Albuquerque, NM,
Ar-Ar evidence for Mesoproterozoic (1.45-1.0 Ga) regional metamorphisms in New Mexico: Implications for thermal evolution of lithosphere in the southwest
Karl E. Karlstrom1 and D. A. Dallmeyer2 1Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, 87131 2Department of Geology, University of Georgia, Athens, GA, 30602 Ar-Ar dating of hornblende and muscovite
Progress on the 40Ar/39Ar dating of the Taos Plateau volcanic field, Taos, New Mexico and southern Colorado
Robert M. Appelt Department of Earth and Environmental Sciences, New Mexico Institute of Mining and Technology, Socorro, NM, 87801 Presented here are 27 40Ar/39Ar ages for the Taos Plateau volcanic field (TPVF) in northern New
Origin and spatial distribution of early vadose and phreatic calcite cements in the Zia Formation, Albuquerque Basin, New Mexico, USA
Joseph R. Beckner1 and Peter S. Mozley1 1Department of Earth and Environmental Science New Mexico Tech, Socorro, NM, 87801 The Zia Formation (Miocene) consists of sandstones and mudrocks deposited in fluvial, eolian, and playa lake
Geochronologic studies in the Grants uranium district, New Mexico
William R. Berglof1 and Virginia T. McLemore2 1University of Maryland, Asian Division, Unit 5060 Box: 0100, APO AP, 96328-0100 2New Mexico Bureau of Mines and Mineral Resources, 801 Leroy Place, Socorro, NM, 87801 Geochronologic studies
Late Quaternary paleoclimate indicated by stable isotopic analyses of pedogenic carbonate, southern New Mexico and west Texas
Brenda J. Buck1 and H. Curtis Monger1 1Department of Agronomy and Horticulture, New Mexico State University, Las Cruces, NM, 88003 An understanding of paleoclimate and its effect on past ecosystems is important in ” understanding
Geochronology as it pertains to the public
Mathew T. Heizler New Mexico Bureau of Mines and Mineral Resources, New Mexico Tech, Socorro, NM, 87801 Radioactivity is not something which endears its self unto the public. Aside from specialized medical uses, irradiation for
Tectonic geomorphology of the Sandia Mountains and eastern piedmont of the Albuquerque Basin
H. Gustafson Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, 87131 The middle Rio Grande valley is presently experiencing a rapidly growing population. Large cities in the western interior, such as
1.7-1.4 Ga polymetamorphic history of the Big Thompson Canyon, northern Colorado Front Range
M. Hodgins1 and J. Selverstone1 1Dept. of Earth & Planetary Sciences, UNM, Albuquerque, NM, 87131-1116, mhodgins@unm.edu Recent work in the Proterozoic of southwest North America suggests that the ca. 1.4 Ga metamorphic and deformational events
Cooling histories of mountain ranges in the southern Rio Grande rift based on apatite fission-track analysis: A reconnaissance survey
Shari A. Kelley1 and Charles E. Chapin2 1Dept. of Earth and Environmental Sciences, New Mexico Tech, Socorro, NM, 87801 2New Mexico Bureau of Mines and Mineral Resources, Socorro, NM, 87801 Forty-nine apatite fission-track (AFT) and
Ground-water dating and other uses of environmental isotopes in groundwater studies
Peggy S. Johnson New Mexico Bureau of Mines and Mineral Resources, Socorro, NM, 87801 Naturally occurring isotopes that exist in water in the hydrologic cycle have been used in investigations of ground water for decades.
A chronosequence study of soils developing on basalt flows in an arid environment, the Potrillo volcanic field, Dona Ana county, New Mexico
Martha C. Eppes1 and Bruce J. B. Harrison1 1Earth and Environmental Science Department, New Mexico Institute of Mining and Technology, Socorro, NM, 87801 One of the most widely referenced soil-geomorphic studies in the US is
Rotated and nonrotated porphyroblasts
Brad R. Ilg Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, 87131, bilg@unm.edu Metamorphic porphyroblasts in supracrustal rocks of the Granite Gorge Metamorphic Suite exposed in the Upper Grainte Gorge of
A climosequence on early Holocene fluvial terraces on the south edge of the Albuquerque-Belen Basin in the Rio Grande rift
Marsha Fronterhouse University of New Mexico, Albuquerque, NM, 87131 Climate is one of several important variables that influences the formation of soils. Recent documented increases in desertification threaten to significantly alter the environment of many
Evidence of gregarious behavior in dinosaurs from a new track-site, Mesa Rica Sandstone (Lower Cretaceous), northeastern New Mexico
Adrian P. Hunt1 and B. R. Watts1 1Mesalands Museum, Mesa Technical College, 911 South Tenth Street, Tucumcari, NM, New Mexico, 88401 A new tracksite has been located near Mills, Harding County, New Mexico in the
Chronology and thermal history of potassium metasomatism in the Socorro, New Mexico area: Evidence from 40Ar/39Ar dating and fission track analysis
Nelia W. Dunbar1 and D. Miggins1 1New Mexico Bureau of Mines and Mineral Resources and Earth and Environmental Science Department, New Mexico Tech, Socorro, NM, New Mexico, 87801 Argon 40/39 dating and fission track analysis
Laramide contractional deformation in the Sandia Mountains
Karl E. Karlstrom1 and Charles E. Ferguson2 1Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, 87131 2Arizona Geological Survey, Tucson, AZ, 85701 Recent mapping of the Placitas and Sandia Park Quadrangles
Cambrian plutonism in southern New Mexico: The Florida Mountain intrusions
Sheryl D. Ervin1 and Nancy J. McMillan1 1Department of Geological Sciences, New Mexico State University, Las Cruces, NM, 88003, servin@nmsu.edu Late Cambrian plutonic rocks, dated at 503 ± 10 Ma U-Pb zircon date (Evans and
Taphodacies and early dinosaur evolution: An example from the Bull Canyon Formation (Upper Triassic: Norian), east-central New Mexico
Adrian P. Hunt1 and A. J. Newell2 1Mesalands Museum, Mesa Technical College, 911 South Tenth Street, Tucumcari, NM, New Mexico, 88401 2British Geological Survey, Exeter, England The Norian Bull Canyon Formation of east-central New Mexico
P-T histories of metasedimentary xenoliths from the Navajo volcanic field: Implications for Proterozoic crustal structure beneath the Colorada Plateau
Jane Selverstone1, K. Karlstrom1 and Aurora Pun1 1Dept. of Earth and Planetary Sciences, Univ. of New Mexico, Albuquerque, NM, 87131-1116, selver@unm.edu Preliminary examination of 85 crustal xenoliths from 6 diatremes in the Navajo Volcanic field