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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Abstracts
Neogene age of decollement-style faulting in Permian Yeso Formation, Sierra Larga, Socorro County, New Mexico
S. Flores, G. Axen and S. M. Cather East of Socorro, NM, several east-dipping, normal-separation faults root into a subregionally developed low-angle fault system in evaporites of the Permian Yeso Formation (Cather, 2010, NMGS Guidebook).
Effect of pedogenic calcium on hydrological properties of arid soils, Sevilleta National Wildlife Refucge, central New Mexico
M. Whitt, J. B. J. Harrison, L. Garcia, C. F. Ramirez and V. Nenuji A study was conducted in the Sevilleta National Wildlife Refuge to remotely identify soil map unit boundaries using root zone soil
Geophysical records of anthropogenic sinkhole formation in the lower Pecos region, Eddy Co., New Mexico
L. A. Land A significant minority of sinkholes formed in gypsum bedrock in the lower Pecos region are of human origin. These anthropogenic sinkholes are often associated with improperly cased abandoned oil wells, or with
Role of faults in controlling hydrothermal fluid flow, helium, and CO2 transport within the Albuquerque basin
E. E. Woolsey, M. A. Person, L. J. Crossey, K. E. Karlstrom and L. Owens Groundwater salinity and 3He/4He anomalies (RA values between 0.3 and 0.5) reported in the Albuquerque Basin is a probable indication
Ground water geochemistry of the south Taos Valley
A. L. Benson1 and R. Gervason1 1Taos Soil and Water Conservation District (TSWCD), Taos, NM, benson1@newmex.com Data has been compiled by TSWCD staff from a well sampling program analyzed by the New Mexico Bureau of
Testing a hypothesis for multistage uplift of the Rockies using thermochronology and detrital zircon data: Laramide reverse faulting, long wavelength Oligocene uplift, and shorter wavelength Neogene differential uplift
M. S. Donahue, J. W. Ricketts, A. Nereson, S. A. Kelley, K. E. Karlstrom, R. Crow and D. Gonzales A compilation of thermochronologic age-elevation transects shows temporally and spatially partitioned Cenozoic cooling indicative of multistage
Mapping the McCartys lava flow, El Malpais, Zuni Bandera field: the role of inflation in the emplacement of large lava flows
L. S. Crumpler, J. R. Zimbleman, J. F. Bleacher, W. B. Garry, J. C. Aubele and S. Self Based on mapping of the McCartys lava flow, comparison with flow-fields in Hawaii, and observations of actively
Correlating magmatic temperatures and melt inclusion compositions at the single crystal level at Valles Caldera, New Mexico
C. A. Dimond1, F. C. Ramos, R. J. Mulhall and E. Gladish 1Department of Geological Sciences, NMSU, Box 30001, MSC 3AB, Las Cruces, NM, 88003 Isotopic signatures and major and trace element compositions of single
Correlation of Oligocene ash flow tuffs of the Bell Top Formation using laser-induced breakdown spectroscopy
N. J. McMillan, M. Dawkins and S. Carpenter Ash flow tuffs represent important marker beds for many types of research, including volcanology, tectonics, archeology, and soil science. Traditional methods for tuff correlation include mapping, mineralogy,
The eruptive history and evidence for protracted pluton emplacement associated with the Organ caldera, south-central New Mexico
M. Zimmerer and W. C. McIntosh Ar/Ar dating of volcanic and plutonic rocks related to the Organ caldera, southcentral New Mexico, indicates that magmatism spanned at least 2 Ma between 36.4 and 34.4 Ma. The
Geology, alteration, and mineralization of the Copper Flat porphyry copper deposit, southwestern New Mexico
S. M. Drueckhammer, A. R. Campbell and W. X. Chavez The Copper Flat deposit, located in southwestern New Mexico, is a Laramide porphyry copper deposit with associated molybdenum, gold, and minor silver. The hydrothermal evolution
An assessment of provenance and maximum depositional ages using detrital zircons from Proterozoic, Cambrian, Pennsylvanian, and Cretaceous sandstones, southwestern New Mexico
J. M. Amato Dept. Geological Sciences, New Mexico State University, Las Cruces, NM, 88005, amato@nmsu.edu Detrital zircons from sandstones from southern New Mexico were analyzed for U-Pb ages using LA-ICP-MS. These include: (1) Proterozoic quartzite
A north-flowing Miocene (?) ancestral Pecos River in southeast New Mexico: a record of Late Paleogene-Early Neogene epeirogeny)
S. M. Cather The Gatuña Formation of southeastern New Mexico consists of fluvial and eolian deposits within the modern valley of the Pecos River and nearby areas to the east and west. The Gatuña is
Cenozoic intrusive and exhumation history of the Elk and West Elk Mountain plutons, southwest Colorado
R. V. Garcia, S. A. Kelley and M. T. Heizler The Elk and West Elk Mountains of southwest Colorado are dotted with Mid-Cenozoic plutons that can provide important geochronological and thermochronological data about the transitional
Thermochronologic constraints on the exhumation history of the Colorado Plateau – Rocky Mountain – Rio Grande rift region
S. A. Kelley, C. E. Chapin, K. E. Karlstrom, D. Stockli, M. Hoffman, J. Lee, R. McKeon and R. V. Garcia A regional compilation of apatite fission-track (AFT) and (U-Th)/He (AHe) data from surface and
Neogene and ongoing dynamic uplift of the Rocky Mountains due to mantle convection, and its surface manifestations
K. E. Karlstrom, A. Darling, L. J. Crossey, R. Crow, D. Coblentz, W. Oiumet, E. Kirby, J. Van Wikk, B. Schmandt, S. A. Kelley, M. T. Heizler, R. Aster, J. MacCarthy, G. Lazear, A. Aslam,
Exceptionally preserved paleoflora from the Upper Triassic Chinle Group, Santa Fe County, New Mexico (abs.)
S. G. Lucas1 and J. A. Spielmann1 1NM Museum of Natural History, 1801 Mountain Road NW, Albuquerque, NM, New Mexico, 87104 A recently discovered locality in the Trujillo Formation, Chinle Group, south of Lamy, Santa
Dynamic topography of the Great Plains: Evidence from fluvial incison and exhumation in New Mexico and Colorado
A. Nereson, S. Brown, K. E. Karlstrom, J. Stroud, W. C. McIntosh and M. T. Heizler Fluvial incision data from the Great Plains of New Mexico and Colorado show differential incision across broad (50-100 km)
Magmatic constraints on the enigmatic Colorado Mineral Belt
J. D. Feldman, M. T. Heizler, K. E. Karlstrom and S. A. Kelley The Colorado Mineral Belt (CMB) is a Laramide (75 to 40 Ma) magmatic lineament that trends NE from the Four Corners region
Xenowhiffs: Mantle gases in hydrologic systems
L. J. Crossey and K. E. Karlstrom Throughout the western U.S., Quaternary travertine and lacustrine carbonate deposits record long-lived interactions of deeply-sourced (“endogenic”) carbonic fluids with the near-surface hydrologic regime. These were deposited by springs
Microbial ecosystems at depth: Contrasts in nutrient and other environmental gradients between natural caves and ultra-deep mines
P. J. Boston1 and T. L. Kieft2 1Earth and Environmental Sciences Dept., New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM, 87801 2National Cave and Karst Research Institute,, 1400 Commerce Dr., Carlsbad,
Geochronology, geochemistry, and tectonic occurrence of large travertine deposits in New Mexico and Arizona
A. Priewesch, L. J. Crossey, E. Embid, K. E. Karlstrom, V. Polyak, Y. Asmerom and J. W. Ricketts New Mexico and Arizona host several large travertine deposits (>20-60 km2 with thicknesses ranging from 15 to
The Eupelycosaur Dimetrodon from the lower Permian Abo Formation, Fra Cristobal Mountains, Sierra County, New Mexico
S. K. Harris, S. G. Lucas and L. F. Rinehart A neural spine from the lowermost Abo Formation (Wolfcampian) is the first recorded occurrence of the eupelycosaur Dimetrodon from the Fra Cristobal Mountains of Sierra
The Upper Triassic Whitaker (Coelophysis) Quarry, Ghost Ranch, Rio Arriba County, New Mexico, is Norian
J. A. Spielman, S. G. Lucas, L. H. Tanner, L. F. Rinehart, A. B. Heckert, R. M. Sullivan and A. P. Hunt The Upper Triassic Whitaker (= Ghost Ranch, = Coelophysis) quarry is known for