T173 Pre-EarthScope Synthesis of the Rocky Mountains V: New Insights in Basement Tectonics, Deep Crustal Structure and Precambrian Tectonic Evolution

Tuesday, 9 November 2004
1:30 PM - 5:30 PM

Presentations

• 1:35 PM
  BASEMENT ACCRETIONARY PROCESSES - PRECURSOR TO THE TECTONIC REACTIVATION HISTORY OF THE ROCKIES AND ADJOINING REGIONS
  Marvin P. Carlson, Univ of Nebraska-Lincoln, Lincoln, NE
  73389 (Technical Sessions)
• 1:50 PM
  TECTONIC HEREDITY IN THE GRAND CANYON AND IMPLICATIONS FOR TIBETAN-SCALE MESOPROTEROZOIC INTRA-CONTINENTAL DEFORMATION IN THE SOUTHWESTERN UNITED STATES
  Gregory Dumond, Univ of Massachusetts, Amherst, MA and Michael Williams, Univ of Massachusetts, Amherst, MA and Kevin Mahan, Univ of Massachusetts, Amherst, MA and Karl E. Karlstrom, Univ of New Mexico, Albuquerque, NM and Matthew T. Heizler, New Mexico Tech, Socorro, NM
  74753 (Technical Sessions)
• 2:05 PM
  METAMORPHIC HISTORY OF THE UPPER GRANITE GORGE, GRAND CANYON, ARIZONA, AND IMPLICATIONS FOR THE SIGNIFICANCE OF DOMAIN BOUNDARIES IN THE YAVAPAI/MAZATZAL OROGEN
  Kevin H. Mahan, Univ of Massachusetts, Amherst, MA and Gregory Dumond, Univ of Massachusetts, Amherst, MA and Michael Williams, Univ of Massachusetts, Amherst, MA and Michael Jercinovic, Univ of Massachusetts, Amherst, MA and Karl E. Karlstrom, Univ of New Mexico, Albuquerque, NM
  76313 (Technical Sessions)
• 2:20 PM
  ADDING “TIME” TO THE EARTHSCOPE IMAGE: PETROLOGIC ANALYSIS, STRUCTURAL ANALYSIS, AND MONAZITE GEOCHRONOLOGY OF THE PROTEROZOIC CRUST
  Michael L. Williams, Univ of Massachusetts, Amherst, MA and Michael J. Jercinovic, Univ of Massachusetts, Amherst, MA and Karl E. Karlstrom, Univ of New Mexico, Albuquerque, NM and Kevin Mahan, Univ of Massachusetts, Amherst, MA and Gregory Dumond, Univ of Massachusetts, Amherst, MA
  75408 (Technical Sessions)
• 2:35 PM
  PROGRESSIVE PROTEROZOIC GROWTH OF SOUTHERN LAURENTIA BY MAGMATIC STABILIZATION OF LITHOSPHERE
  Steven J. Whitmeyer, Univ of New Mexico, Albuquerque, NM and Karl Karlstrom, Univ of New Mexico, Albuquerque, NM
  77450 (Technical Sessions)
• 2:50 PM
  NEW INSIGHTS INTO THE PROTEROZOIC EVOLUTION OF THE WESTERN MARGIN OF LAURENTIA AND THEIR TECTONIC IMPLICATIONS
  Paul Mueller, Univ of Florida, Gainesville, FL and David Foster, University of Florida, Gainesville, FL and David Mogk, Montana State Univ, Bozeman, MT and Joseph Wooden, Stanford Univ, Stanford, CA
  79963 (Technical Sessions)
• 3:05 PM
  NEW U-PB DATES OF SYN-DEFORMATIONAL MINERALS THAT DIRECTLY DATE MULTIPLE TECTONIC EVENTS AT 1.75 AND 1.62 GA ALONG THE CHEYENNE BELT SUTURE ZONE, SOUTHEASTERN WYOMING
  Diana Strickland, Univ of Wyoming, Laramie, WY and Kevin Chamberlain, Univ of Wyoming, Laramie, WY and Ernest Duebendorfer, Northern Arizona Univ, Flagstaff, AZ
  79989 (Technical Sessions)
• 3:20 PM
  STRUCTURAL AND THERMOCHRONOLOGIC EVIDENCE FOR A CA. 1.6 GA CONTRACTIONAL EVENT IN SOUTHERN WYOMING
  Ernest Duebendorfer, Northern Arizona Univ, Flagstaff, AZ and Kevin Chamberlain, Univ of Wyoming, Laramie, WY and Matthew T. Heizler, New Mexico Institute of Mining & Technology, Socorro, NM and Kathleen Harper, Univ of Wyoming, Laramie, WY
  80259 (Technical Sessions)
• 3:50 PM
  BRITTLE AND PLASTIC DEFORMATION IN THE HOMESTAKE SHEAR ZONE, COLORADO: IMPLICATIONS FOR DEFORMATION PROCESSES IN THE MIDDLE CRUST AND THE EVOLUTION OF THE COLORADO MINERAL BELT
  Colin A. Shaw, Univ of Wisconsin, Eau Claire, Eau Claire, WI and Joseph L. Allen, Concord College, Athens, WV
  78192 (Technical Sessions)
• 4:05 PM
  CIRCA 1.4 GA PENETRATIVE DEFORMATION IN THE SOUTHERN WET MOUNTAINS, COLORADO: IMPLICATIONS FOR MESOPROTEROZOIC INTRACONTINENTAL TECTONISM ACROSS THE SOUTHERN ROCKY MOUNTAINS
  James V. Jones, Univ of Texas at Austin, Austin, TX and Christine S. Siddoway, Colorado College, Colorado Springs, CO and James N. Connelly, Univ of Texas at Austin, Austin, TX and George Perkins, Colorado College, Colorado Springs, CO and Owen Callahan, Hampshire College, Amherst, MA
  78919 (Technical Sessions)
• 4:20 PM
  AUREOLE STRUCTURE OF 1.4 GA PLUTONS AND THEIR TECTONIC SIGNIFICANCE
  Robert Dean, Montgomery College, Rockville, MD and Christopher L. Andronicos, Univ of Texas at El Paso, El Paso, TX
  76628 (Technical Sessions)
• 4:35 PM
  THE EVOLUTION OF LAURENTIA AS DOCUMENTED BY 40AR/39AR THERMOCHRONOLOGY STUDIES
  Matthew Heizler, New Mexico Bureau of Geology New Mexico Institute Mining & Technolo, Socorro, NM and Karl E. Karlstrom, Univ of New Mexico, Albuquerque, NM and Colin A. Shaw, Univ. Wisconsin, Eau Claire, Eau Claire, WI and J. Michael Timmons, New Mexico Tech, Socorro, NM and Robert E. Sanders, New Mexico Tech, Socorro, NM
  79121 (Technical Sessions)
• 4:50 PM
  PROVENANCE AND GEOCHRONOLOGY OF MESOPROTEROZOIC SEDIMENTARY ROCKS FROM ACROSS THE SOUTHWEST UNITED STATES REVEALED BY 40AR/39AR DATING OF DETRITAL MUSCOVITES
  K.E. Fletcher, New Mexico Institute of Mining and Technology, Socorro, NM and M.T. Heizler, NM Bureau of Mines, Socorro, NM and Karl E. Karlstrom, Univ of New Mexico, Albuquerque, NM and J.M. Timmons, NM Bureau of Mines, Socorro, NM and L.J. Crossey, Univ of New Mexico, Albuquerque, NM and J.D. Bloch, Univ of New Mexico, Albuquerque, NM
  77972 (Technical Sessions)
• 5:05 PM
  BASEMENT EXHUMATION, FAULT REACTIVATION, AND K-METASOMATISM IN THE SOUTHERN SANGRE DE CRISTO RANGE, NEW MEXICO: 40AR/39AR INSIGHTS INTO NEOPROTEROZOIC TECTONISM AND CRUSTAL FLUID FLOW
  Robert E. Sanders, New Mexico Institute of Mining and Technology, Socorro, NM and Erwin A. Melis, New Mexico Institute of Mining and Technology, Socorro, NM and Matthew T. Heizler, New Mexico Institute of Mining and Technology, Socorro, NM and Laurel B. Goodwin, New Mexico Institute of Mining and Technology, Socorro, NM and Kevin R. Chamberlain, Univ of Wyoming, Laramie, WY
  77478 (Technical Sessions)