40 Proterozoic Basement in Sonora and Adjacent Areas: A Piece of SW Laurentia II

Thursday, 3 April 2003
2:15 PM - 5:30 PM

Presentations

• 2:15 PM
  EARLY AND MIDDLE PROTEROZOIC CRISTALINE BASEMENT IN SONORA, MEXICO
  Emilio Almazán-Vázquez, Universidad de Sonora, Hermosillo, N/A and Rafael Rodríguez-Torres, Universidad de Sonora, Hermosillo, N/A and Jose Luis Rodriguez-Castañeda, UNAM, Hermosillo, N/A
  51789 (THEME SESSIONS)
• 2:35 PM
  THE EL CRESTÓN GRANITE: A NEW CONFIRMED PALEOPROTEROZOIC LOCALITY IN THE OPODEPE AREA, NORTH-CENTRAL SONORA, MEXICO
  Luis Carlos Valenzuela-Navarro, Universidad Nacional Autónoma de México, Hermosillo, N/A and Martín Valencia-Moreno, Universidad Nacional Autónoma de México, Hermosillo, N/A and Alexander Iriondo, USGS, Denver, CO and Wayne R. Premo, U.S. Geol Survey, Denver, CO
  51818 (THEME SESSIONS)
• 2:55 PM
  SOURCE ROCK AGES AND DEPOSITIONAL AGE OF PROTEROZOIC METASEDIMENTARY ROCKS IN THE BURRO MOUNTAINS, MAZATZAL PROVINCE, SOUTHWEST NEW MEXICO: A COMPARISON OF LA-MC-ICPMS U/PB ZIRCON AGES AND ELECTRON MICROPROBE MONAZITE AGES
  Amos Sanders, New Mexico State Univ, Las Cruces, NM and Jeffrey M. Amato, New Mexico State Univ, Las Cruces, NM and George Gehrels, Univ of Arizona, Tucson, AZ
  51667 (THEME SESSIONS)
• 3:30 PM
  EARLY AND MID-PROTEROZOIC CRUST OF THE COAHUILA TERRANE PRESERVED IN XENOLITHS AT CASCADA DE BASASEACHIC, SOUTHWESTERN CHIHUAHUA
  Todd Housh, The Univ of Texas at Austin, Austin, TX and Fred W. McDowell, Univ Texas - Austin, Austin, TX and James N. Connelly, Univ of Texas at Austin, Austin, TX and Timoithy W. Duex, Univ of Louisiana at Lafayette, Lafayette, LA
  51352 (THEME SESSIONS)
• 3:50 PM
  AN INVENTORY OF MAFIC AND ULTRAMAFIC ROCKS OF CORDILLERAN PROTEROZOIC BASEMENT(?) IN NORTHERN SONORA, MEXICO: PRELIMINARY RESULTS
  Jose Luis Rodriguez-Castañeda, UNAM, Hermosillo, N/A and Rafael Rodríguez-Torres, Universidad de Sonora, Hermosillo, N/A and Emilio Almazán-Vázquez, Universidad de Sonora, Hermosillo, N/A
  51794 (THEME SESSIONS)
• 4:10 PM
  THE AIBO-TYPE (~1.1 GA) GRANITIC MAGMATISM IN NW SONORA, MEXICO: FAILED CONTINENTAL RIFTING OF RODINIA?
  Alexander Iriondo, USGS, Denver, CO and Daniel Miggins, USGS, Denver, CO and Wayne Premo, USGS, Denver, CO
  51793 (THEME SESSIONS)
• 4:30 PM
  GEOCHEMISTRY AND SHRIMP U-PB ZIRCON GEOCHRONOLOGY OF ANORTHOSITIC ROCKS AT SIERRA EL TECOLOTE IN THE CABORCA BLOCK, NORTHWESTERN SONORA, MEXICO
  Inocente Espinoza, Universidad de Sonora, Hermosillo, Sonora, N/A and Alex Iriondo, USGS, Denver, CO and Wayne Premo, USGS, Denver, CO and Francisco Paz, Universidad de Sonora, Hermosillo, Sonora, N/A and Martin Valencia, UNAM-ERNO, Hermosillo, Sonora, N/A
  48138 (THEME SESSIONS)