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2004 Denver Annual Meeting (November 7–10, 2004)

Session No. 17
Sunday, 7 November 2004: 8:00 AM-12:00 PM

T75. A Xenolith Perspective on the Physical and Chemical Evolution of Continental Lithosphere

GSA Structural Geology and Tectonics Division; Mineralogical Society of America; GSA Geophysics Division

 

Jane Selverstone and Roberta L. Rudnick, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
1
8:05 AM
THE ROLE OF CHEMICAL BOUNDARY LAYERS IN REGULATING THE THERMAL THICKNESS OF CONTINENTS AND OCEANS
LEE, Cin-Ty1, LENARDIC, Adrian2, COOPER, Catherine2, NIU, Fenglin1 and LEVANDER, Alan3, (1)Earth Science, Rice Univ, MS 126, 6100 Main St, Houston, TX 77005, (2)Earth Science, Rice Univ, MS-126, 6100 Main St, Houston, TX 77005, (3)Department of Earth Science, Rice Univ - MS126, 6100 Main Street, Houston, TX 77005, ctlee@rice.edu, ctlee@rice.edu
2
8:25 AM
PERSPECTIVES ON CONTINENTAL EVOLUTION FROM XENOLITHS AND GEOPHYSICAL DATA
JORDAN, Thomas H., Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089-0740, tjordan@usc.edu, tjordan@usc.edu
3
8:45 AM
ZIRCONS IN CRATONIC MANTLE ECLOGITES: INSIGHTS INTO SUBCONTINENTAL LITHOSPHERIC MANTLE EVOLUTION AND METASOMATISM
SCHMITZ, Mark D., Department of Geosciences, Boise State Univ, 1910 University Drive, Boise, ID 83725, markschmitz@boisestate.edu, markschmitz@boisestate.edu
4
9:05 AM
EVIDENCE FOR HIGH PRESSURE GARNET PYROXENITES IN THE CONTINENTAL LITHOSPHERE
RODEN, Michael1, PATIÑO-DOUCE, Alberto2 and LAZ'KO, E.E.2, (1)Geology, Univ of Georgia, Athens, GA 30602, (2)Department of Geology, Univ of Georgia, Athens, GA 30602, mroden@gly.uga.edu, mroden@gly.uga.edu
5
9:20 AM
A NEW MODEL FOR CONTINENTAL FLOOD BASALTS
SILVER, P.G.1, BEHN, M.2, KELLEY, K.1 and SCHMITZ, M.3, (1)Carnegie Institution of Washington, DTM, 5241 Broad Branch Rd NW, Washington, DC 20015, (2)Carnegie Institution of Washington, DTM, 5241 Broad Branch Rd NW, Washington, DC, (3)Department of Geosciences, Boise State Univ, Math/Geo 205A, Boise, ID 83725, silver@dtm.ciw.edu, silver@dtm.ciw.edu
6
9:35 AM
COMPOSITIONAL CONTROL OF WESTERN U.S. MAGMATISM, TECTONISM AND UPLIFT
HUMPHREYS, Eugene D., Eugene, OR 97403, gene@newberry.uoregon.edu, gene@newberry.uoregon.edu
7
9:55 AM
Withdrawn
8
10:10 AM
CORRELATION OF MANTLE XENOLITH DATA WITH GEOPHYSICAL IMAGES OF THE TRANSITION ZONE BETWEEN THE COLORADO PLATEAU AND THE RIO GRANDE RIFT
SELVERSTONE, Jane, BREARLEY, A., PERKINS, G., PORRECA, C., SHARP, Z.D., CALLAHAN, C. and ROY, M., Earth and Planetary Sciences, Univ of New Mexico, Albuquerque, NM 87131, selver@unm.edu, selver@unm.edu
 
10:25 AM
Break
9
10:40 AM
U-PB AND HF ISOTOPIC ANALYSIS OF ZIRCON IN LOWER CRUSTAL XENOLITHS FROM THE NAVAJO VOLCANIC FIELD: 1.4 GA MAFIC MAGMATISM AND METAMORPHISM BENEATH THE COLORADO PLATEAU
CROWLEY, James L., Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, SCHMITZ, Mark D., Department of Geosciences, Boise State Univ, 1910 University Drive, Boise, ID 83725, BOWRING, Samuel A., Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, WILLIAMS, Michael, Geosciences, Univ of Massachusetts, 611 N. Pleasant St, Amherst, MA 01003 and KARLSTROM, Karl E., Dept. of Earth & Planetary Sciences, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87131, jlcrowle@mit.edu, jlcrowle@mit.edu
10
10:55 AM
THERMAL RECORDS OF LOWER CRUSTAL XENOLITHS AND GRANULITE EXPOSURES: A PERSPECTIVE FROM GRANULITES OF THE SNOWBIRD TECTONIC ZONE, NORTHERN SASKATCHEWAN
FLOWERS, Rebecca M., Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Bldg. 54-1114, Cambridge, MA 02139, BOWRING, Samuel A., Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307 and WILLIAMS, Michael L., Department of Geosciences, Univ of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003-5820, rflowers@mit.edu, rflowers@mit.edu
11
11:10 AM
CRUSTAL STRUCTURE INFERRED FROM GRANULITE-FACIES XENOLITHS FROM CENTRAL IRELAND
VAN DEN BERG, Riana and DALY, J Stephen, Department of Geology, Univ College Dublin, Belfield, Dublin 4, Ireland, rvdb@sun.ac.za, rvdb@sun.ac.za
12
11:25 AM
ION MICROPROBE U-PB ZIRCON EVIDENCE FROM LOWER CRUSTAL XENOLITHS FOR PALAEOZOIC CRUST FORMATION AND CRUSTAL DEVELOPMENT WITHIN THE CALEDONIAN SUTURE ZONE IN CENTRAL IRELAND
DALY, J. Stephen, Department of Geology, University College Dublin, Belfield, Dublin 4, Ireland and VAN DEN BERG, Riana, Department of Geology, Univ College Dublin, Belfield, Dublin 4, stephen.daly@ucd.ie, stephen.daly@ucd.ie
13
11:40 AM
XENOLITH COLLECTIONS AT THE SMITHSONIAN: SCOPE, HISTORY, AND OUTLOOK FOR RESEARCH
SORENSEN, S.S., Dept. Min. Sci, Smithsonian Inst, PO Box 37012, NMNH MRC-119, Washington, DC 20013-7012, HEARN, B. Carter, Jr, US Geol Survey, 954 National Ctr, Reston, VA 20192-0001 and LUHR, James F., Smithsonian Inst, NHB-119, Washington, DC 20560-0001, sorena@volcano.si.edu, sorena@volcano.si.edu
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