T189 Geological, Geophysical, Geochemical, and Environmental Studies in Big Bend National Park and the Trans-Pecos Region, Texas

Wednesday, 31 October 2007
8:00 AM - 12:00 PM

Presentations

• 8:00 AM
  INTRODUCTION TO BIG BEND NATIONAL PARK
  Bill Wellman, National Park Service, Big Bend National Park, TX
  128424 (Technical Sessions)
• 8:15 AM
  OCCURRENCE OF INTERSEX AMPHIBIANS IN BIG BEND NATIONAL PARK: ARE ENVIRONMENTAL FACTORS TO BLAME?
  Bibek Sharma, Texas Tech University, Lubbock, TX and Fang Hu, Texas Tech University, Lubbock, TX and James A. Carr, Texas Tech University, Lubbock, TX and Reynaldo Patino, Texas Tech University, Lubbock, TX
  125225 (Technical Sessions)
• 8:30 AM
  EVALUATION OF MERCURY CONTAMINATION IN MINE WASTE, SEDIMENT, WATER, AND AIR AT THE MARISCAL MINE, BIG BEND NATIONAL PARK, TEXAS
  John E. Gray, U.S. Geological Survey, Denver, CO and Peter M. Theodorakos, U.S. Geol Survey, Denver, CO and Philip L. Hageman, U.S. Geol Survey, Denver, CO and Brenda K. Lasorsa, Sequim, WA
  128679 (Technical Sessions)
• 8:45 AM
  GEOLOGIC AND GEOCHEMICAL CHARACTERIZATION OF THERMAL SPRINGS ALONG THE RIO GRANDE IN BIG BEND NATIONAL PARK AND THE RIO GRANDE WILD AND SCENIC RIVER
  Jeffery Bennett, National Park Service, Big Bend National Park, TX and Paula A. Cutillo, National Park Service, Fort Collins, CO
  131318 (Technical Sessions)
• 9:00 AM
  TRACE ELEMENT AND STABLE ISOTOPE STUDIES OF BLACK BEAR HAIR, BIG BEND NATIONAL PARK AREA, TEXAS AND MEXICO
  Wayne Shanks, US Geological Survey, Boulder, CO and C.A. Stricker, U.S. Geol Survey, Denver, CO and Eric Hellgren, Southern Illinois University-Carbondale, Carbondale, IL, N/A and Pamela Gemery-Hill, N/A
  132112 (Technical Sessions)
• 9:15 AM
  UPPER CRETACEOUS AND PALEOGENE STRATA SOUTH OF THE CHISOS MOUNTAINS, BIG BEND NATIONAL PARK, TEXAS
  Thomas M. Lehman, Texas Tech University, Lubbock, TX
  126545 (Technical Sessions)
• 9:30 AM
  INTERACTIONS OF MAGMAS WITH WATER-SATURATED HOSTS, BIG BEND NATIONAL PARK, TEXAS
  Daniel S. Barker, The University of Texas at Austin, Austin, TX
  124396 (Technical Sessions)
• 9:45 AM
  EARLY ONSET OF RIO GRANDE RIFT MAGMATISM IN WEST TEXAS
  Don F. Parker, Waco, TX and Nancy J. McMillan, New Mexico State University, Las Cruces, NM
  131007 (Technical Sessions)
• 10:15 AM
  AEROMAGNETIC MAPPING OF THE STRUCTURE OF PINE CANYON CALDERA AND CHISOS MOUNTAINS INTRUSION, BIG BEND NATIONAL PARK, TEXAS
  Benjamin Drenth, U.S. Geological Survey, Denver, CO and Carol A. Finn, U.S. Geol Survey, Denver, CO
  126632 (Technical Sessions)
• 10:30 AM
  NEW EVIDENCE FOR STRATIGRAPHIC REVISION OF THE SOUTH RIM FORMATION, BIG BEND NATIONAL PARK, TEXAS
  S. Christian Benker, University of Texas, El Paso, El Paso, TX and John C. White, Eastern Kentucky University, Richmond, KY and Minghua Ren, University of Texas, El Paso, El Paso, TX and Daniel P. Miggins, U. S. Geological Survey, Denver, CO and Elizabeth Y. Anthony, University of Texas, El Paso, El Paso, TX
  127276 (Technical Sessions)
• 10:45 AM
  EVIDENCE OF CALDERA ACTIVITY IN THE SIERRA QUEMADA, BIG BEND NATIONAL PARK, TEXAS
  Timothy W. Duex, University of Louisiana at Lafayette, Lafayette, LA and Gary L. Kinsland, University of Louisiana at Lafayette, Lafayette, LA and Daniel R. Tucker, University of Louisiana at Lafayette, Lafayette, LA
  130455 (Technical Sessions)
• 11:00 AM
  NEWLY RECOGNIZED CRETACEOUS AND EOCENE BASALTIC PHREATOMAGMATIC VOLCANISM IN THE BIG BEND AREA, WEST TEXAS
  Richard Hanson, Texas Christian University, Fort Worth, TX and Kenneth S. Befus, Bellevue, WA and John Breyer, Texas Christian University, Fort Worth, TX and Arthur Busbey, Texas Christian University, Fort Worth, TX and Thomas Lehman, Texas Tech Univ, Lubbock, TX and Daniel Miggins, USGS, Denver, CO
  129976 (Technical Sessions)
• 11:15 AM
  SIERRA QUEMADA—A FAILED CALDERA, BIG BEND NATIONAL PARK
  Robert B. Scott, U.S. Geol Survey, Denver, CO and Kenzie J. Turner, U.S. Geol Survey, Denver, CO and James R. Budahn, U.S. Geological Survey, Denver, CO and Daniel P. Miggins, U.S. Geological Survey, Denver, CO
  128840 (Technical Sessions)
• 11:30 AM
  GEOLOGIC FEATURES OF A VOLCANIC VENT COMPLEX, NORTH BURRO MESA, BIG BEND NATIONAL PARK, TEXAS
  Lisa Morgan, U.S. Geological Survey, Denver, CO and W.C. Pat Shanks, Denver, CO
  131792 (Technical Sessions)