Rocky Mountain Section - 64th Annual Meeting (911 May 2012)
Session No. 15 Wednesday, 9 May 2012
1:30 PM-4:30 PM, Hotel Albuquerque: Alvarado A&B

T16. Paleoproterozoic Orogeny and Mesoproterozoic Enigmas: Constraints on the Formation, Assembly, and Evolution of the Precambrian Rocks in the Rockies II (GSA Geoinformatics Division; GSA Structural Geology & Tectonics Division)

Christopher Andronicos and Christopher G. Daniel, Presiding
 Paper #Start Time
15-11:30 PM DETRITAL ZIRCON DATA FROM THE MAZATZAL GROUP OF CENTRAL ARIZONA: INSIGHTS FROM NEWLY IDENTIFIED DISCONFORMITIES: DOE, Michael F., Department of Geology and Geologic Engineering, Colorado School of Mines, Golden, CO 80401, mdoe@mines.edu, JONES, James V. III, U.S. Geological Survey, Alaska Science Center, 4200 University Drive, Anchorage, AK 99508, and KARLSTROM, Karl E., Earth and Planetary Science, University of New Mexico, Albuquerque, NM 87131
15-21:45 PM EXOTIC MESOPROTEROZOIC (1.5-1.6 GA) DETRITAL ZIRCON FROM THE METAMORPHOSED PIEDRE LUMBRE FORMATION IN THE PICURIS MOUNTAINS, NEW MEXICO, USA: PROVENANCE AND TECTONIC IMPLICATIONS: PFEIFER, Lily S., Geology, Bucknell University, O'Leary Center, Lewisburg, PA 17837, DANIEL, Christopher G., Department of Geology, Bucknell University, 701 Moore Avenue, Lewisburg, PA 17837, cdaniel@bucknell.edu, and JONES, James V. III, U.S. Geological Survey, Alaska Science Center, 4200 University Drive, Anchorage, AK 99508
15-32:00 PM INVITED SPEAKER: TECTONIC CONNECTIONS BETWEEN DEFORMED AND METAMORPHOSED CA. 1.491.43 GA METASEDIMENTARY SUCCESSIONS IN SOUTHWESTERN LAURENTIA: JONES, James V. III, U.S. Geological Survey, Alaska Science Center, 4200 University Drive, Anchorage, AK 99508, jvjones@usgs.gov, DANIEL, Christopher G., Department of Geology, Bucknell University, 701 Moore Avenue, Lewisburg, PA 17837, DOE, Michael F., Department of Geology and Geological Engineering, Colorado School of Mines, Golden, CO 80401, and KARLSTROM, Karl E., Earth and Planetary Science, University of New Mexico, Albuquerque, NM 87131
15-42:15 PM PERSPECTIVES ON LITHOSPHERIC EVOLUTION IN SOUTHWESTERN LAURENTIA, AND PERSISTENT RESEARCH QUESTIONS: KARLSTROM, Karl E., Earth and Planetary Science, University of New Mexico, Albuquerque, NM 87131, kek1@unm.edu and WILLIAMS, Michael L., Dept. of Geosciences, University of Massachusetts, Amherst, 611 North Pleasant Street, 233 Morrill Science Center, Amherst, MA 01003
15-52:30 PM CONTRASTING PRECAMBRIAN TECTONIC HISTORIES IN NORTHERN NEW MEXICO AND SOUTHERN COLORADO: ANDRONICOS, Christopher L., Earth and Atmospheric Sciences, Purdue University, West Lafayette, IN 47907, candroni@purdue.edu, ARONOFF, Ruth F., Earth and Atmospheric Sciences Dept, Cornell University, 4154 Snee Hall, Cornell University, Ithaca, NY 14853, DANIEL, Christopher, Department of Geology, Bucknell University, Leiwsburg, PA 17837, HUNTER, Robert A., Earth and Atmospheric Sciences, Cornell University, 4154 Snee Hall, Ithaca, NY 14853, JONES, James V. III, U.S. Geological Survey, 4200 University Drive, Anchorage, AK 99508, and VERVOORT, Jeff, School of the Environment, Washington State University, Webster Hall 1228, Pullman, WA 99164
 2:45 PM Break
15-63:15 PM UNRAVELING THE MAZATZAL OROGENY: GEOCHRONOLOGICAL CONSTRAINTS AND SPECULATION ON THE NATURE AND TIMING OF PALEOPROTEROZOIC AND MESOPROTEROZOIC OROGENESIS IN THE PICURIS MOUNTAINS, NORTHERN NEW MEXICO, USA: DANIEL, Christopher G., Department of Geology, Bucknell University, 701 Moore Avenue, Lewisburg, PA 17837, cdaniel@bucknell.edu, PFEIFER, Lily S., Geology, Bucknell University, O'Leary Center, Lewisburg, PA 17837, and JONES, James V. III, U.S. Geological Survey, Alaska Science Center, 4200 University Drive, Anchorage, AK 99508
15-73:30 PM EXHUMING PRECAMBRIAN BASEMENT: PARSING THERMAL AND ALTERATION HISTORIES FROM 40AR/39AR K-FELDSPAR DATA: HEIZLER, Matthew T., New Mexico Bureau of Geology & Mineral Resources, New Mexico Institute of Mining & Technology, Socorro, NM 87801, matt@nmt.edu and HEIZLER, Lynn L., New Mexico Bureau of Geology, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801
 3:45 PM Discussion

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