33 Advances in Understanding Arc Magmatism in the Southwestern Cordillera I

Thursday, 17 March 2022
8:00 AM - 12:00 PM
CBC-A 108

Presentations

• 8:00 AM
  HORIZONTAL LENS-LIKE EMPLACEMENT OF THE SAGE HEN FLAT PLUTON, CALIFORNIA
  Ellen Nelson, University of Wisconsin–Madison, Madison, WI and Basil Tikoff, University of Wisconsin-Madison, Madison, WI and Sven Morgan, University of Michigan-Dearborn, Dearborn, MI and Michel de Saint Blanquat, East Carolina Univ.Geological Sciences, Greenville, NC and Richard D. Law, Virginia Tech, Blacksburg, VA
  374300 (Theme Sessions)
• 8:20 AM
  WHY DOES ALKALI-FELDSPAR COMMONLY GROW TO MEGACRYSTIC SIZES IN FELSIC MAGMAS WHEREAS COEXISTING QUARTZ AND PLAGIOCLASE DO NOT? INSIGHTS FROM THE MOUNT WHITNEY INTRUSIVE SUITE, SIERRA NEVADA, CALIFORNIA
  William Hirt, College of the Siskiyous, Weed, CA
  373387 (Theme Sessions)
• 8:40 AM
  GRANITES ARE UPPER GREENSCHIST FACIES ROCKS
  Allen Glazner, Univ North Carolina, Chapel Hill, NC and John Bartley, University of Utah, Salt Lake City, UT and Drew Coleman, University of North Carolina at Chapel Hill, Chapel Hill, NC
  373870 (Theme Sessions)
• 9:00 AM
  LITHOSPHERIC STRENGTHENING AND INDIRECT TECTONOMAGMATIC LINKS DURING MID-CRETACEOUS OROGENESIS IN THE CENTRAL SIERRA NEVADA
  Snir Attia, Geology, Geophysics, and Geochemistry Science Center, Denver, CO and Snir Attia, New Mexico Institute of Mining and Technology, Socorro, NM and Scott R. Paterson, University of Southern California, Los Angeles, CA and Dazhi Jiang, Western University, London, ON and Robert B. Miller, San Jose State University, San Jose, CA
  373490 (Theme Sessions)
• 9:20 AM
  MINERAL-MELT EQUILIBRIUM MODELS VS BULK-ROCK GEOCHEMISTRY: WHICH TELLS THE TRUE STORY OF CORDILLERAN ARC FORMATION?
  Adam Brackman, California State University Northridge, Northridge, CA and Joshua Schwartz, California State University Northridge, Northridge, CA
  374173 (Theme Sessions)
• 9:55 AM
  CHANGES IN ARCHITECTURE, GEOCHEMISTRY, AND CONSTRUCTION TIMESCALES OF INTRUSIVE COMPLEXES IN THE UPPER ~35 KM OF A TRANSCRUSTAL MAGMATIC SYSTEM: THE CRETACEOUS CASCADES ARC, WASHINGTON, USA
  Barbara Ratschbacher, University of California Davis, Davis, CA and Scott R. Paterson, University of Southern California, Los Angeles, CA and J. Lawford Anderson, Boston University, Boston, MA
  373840 (Theme Sessions)
• 10:15 AM
  LATE CRETACEOUS MAGMATIC-TECTONIC EVOLUTION OF THE CENTRAL MOJAVE DESERT
  Rita Economos, Southern Methodist University, Dallas, TX and Andrew Barth, Indiana University, Indianapolis, IN and Joseph L. Wooden, Marietta, GA and Brody P. Friesenhahn, Earth Sciences, Dallas, TX and Ben Bradley, Earth Sciences, Dallas, TX
  374255 (Theme Sessions)
• 10:35 AM
  TECTONIC IMPLICATIONS OF PERMIAN-TRIASSIC, LATE JURASSIC, AND LATE CRETACEOUS PLUTONIC ROCKS THAT INTRUDE THE EL PASO TERRANE IN THE LANE MOUNTAIN AREA, CENTRAL MOJAVE DESERT, CALIFORNIA
  Paul Stone, U.S. Geological Survey, Moffett Field, CA and Howard Brown, Apple Valley, CA and Robinson Cecil, California State University, Northridge, Northridge, CA and Robert J. Fleck, U. S. Geological Survey, Menlo Park, CA and Jorge Vazquez, U.S. Geological Survey, Menlo Park, CA and Craig Johnson, US Geological Survey, Denver, CO
  373457 (Theme Sessions)
• 10:55 AM
  POTENTIAL SIGNIFICANCE AND IMPLICATIONS OF THE LATE CRETACEOUS TEUTONIA BATHOLITH (MOJAVE NATIONAL PRESERVE, CA) FOR LARAMIDE TECTONISM
  Michelle Gevedon, Colorado College, Colorado Springs, CO and Ben Bradley, Earth Sciences, Dallas, TX and Rita Economos, Earth Sciences, Dallas, TX
  374040 (Theme Sessions)
• 11:15 AM
  USING ISOTOPIC COMPOSITIONS OF THE MID-CENOZOIC FLARE UP TO PROBE FOR THE PELONA-OROCOPIA-RAND SCHIST AT DEPTH
  James Chapman, University of Wyoming, Laramie, WY and Nikki Seymour, Stanford University, Stanford, CA
  373869 (Theme Sessions)