Session: Tectonics III: Tectonics of the Circum-Pacific Rim in Space and Time: Focus on Alaska, Central and South America, and the Western Pacific (2003 Seattle Annual Meeting (November 2

Paper #

Start Time

1

1:30 PM

SLAB WINDOWS DRIVE EOCENE FOREARC MAGMATISM ON VANCOUVER ISLAND

MADSEN, Julianne¹, THORKELSON, Derek¹, FRIEDMAN, Richard², MARSHALL, Daniel¹ and ANDERSON, Robert G.³, (1)Department of Earth Sciences, Simon Fraser Univ, 8888 University Dr, Burnaby, BC V5A 1S6, (2)Pacific Centre for Isotopic and Geochemical Research, Department of Earth and Ocean Sciences, Univ of British Columbia, 6339 Stores Rd, Vancouver, BC V6T 1Z4, Canada, (3)Geological Survey of Canada, Nat Rscs Canada, 101 - 605 Robson Street, Vancouver, BC V6B 5J3, Canada, jkmadsen@sfu.ca, jkmadsen@sfu.ca

2

1:45 PM

SLAB-WINDOW SEGMENTATION AND THE EVOLUTION OF THE SANAK-BARANOF BELT: AN EXAMPLE FROM KODIAK ISLAND, AK

FARRIS, David W.¹, PATERSON, Scott R.¹, HAEUSSLER, Peter J.² and FRIEDMAN, Richard³, (1)Dept. of Earth Sciences, Univ of Southern California, 3651 Trousdale Ave, Los Angeles, CA 90089-0740, (2)U. S. Geol Survey, 4200 University Drive, Anchorage, AK 99508, (3)Pacific Centre for Isotopic and Geochemical Research, Univ of British Columbia, Vancouver, BC, dfarris@earth.usc.edu, dfarris@earth.usc.edu

3

2:00 PM

THE WESTERN PACIFIC TRIANGULAR ZONE: FRONTIER TO FORM A FUTURE SUPERCONTINENT

MARUYAMA, Shige, Earth & Planetary Science, Tokyo Institute of Technology, Tokyo, 152, Japan and LIOU, Juhn G., Department of Geological & Environmental Sciences, Stanford Univ, Stanford, CA 94305, smaruyam@geo.titech.ac.jp, smaruyam@geo.titech.ac.jp

4

2:15 PM

INVERSION TECTONICS AT CORDILLERA DE DOMEYKO (NORTH CHILE) AND ITS CONTROL ON GIANT PORPHYRY COPPER EMPLACEMENT: NEW INSIGHTS ON FLAT-SLAB SUBDUCTION KINEMATICS DURING THE TERTIARY

AMILIBIA, Alejandro¹, MCCLAY, Ken¹, SKARMETA, Jorge² and BOURDON, Erwan³, (1)Geology Department (Fault Dynamics Research Group), Royal Holloway Univ of London, Egham (Surrey), TW20 0EX, (2)Gerencia Corporativa de Exploraciones, Codelco-Chile, Huerfanos 1270, Santiago, Chile, (3)Geology Department, Royal Holloway Univ of London, Egham (Surrey), TW20 0EX, United Kingdom, a.amilibia@gl.rhul.ac.uk, a.amilibia@gl.rhul.ac.uk

5

2:30 PM

DEFORMATION OF COOK INLET FOREARC BASIN, SOUTH-CENTRAL ALASKA: DEXTRAL-TRANSPRESSION WITHIN A CONVERGENT MARGIN

BRUHN, Ronald L., Geology and Geophysics, Univ of Utah, 135 South, 1460 East, Room 719, Salt Lake City, UT 84112-0111 and HAEUSSLER, Peter J., United States Geol Survey, Gould Hall 209, 4200 University Drive, Anchorage, AK 99508, rlbruhn@mines.utah.edu, rlbruhn@mines.utah.edu

6

2:45 PM

SEAFLOOR DEFORMATION ACROSS THE MINDORO COLLISION ZONE (MCZ) AND VERDE ISLAND PASSAGE FAULT ZONE (VIPFZ), PHILIPPINES

HOGAN, Phillip J., URS Corporation, 130 Robin Hill Road, Suite 100, Santa Barbara, CA 93117 and MOLINARI, Mark P., URS Corporation, 1501 4th Avenue, Suite 1400, Seattle, WA 98101-1616, phillip_hogan@urscorp.com, phillip_hogan@urscorp.com

7

3:00 PM

SHEAR-WAVE SPLITTING AND UPPER MANTLE FLOW OF THE PACIFIC BASIN AND MARGINS

RUSSO, R.M., Department of Geological Sciences, Northwestern Univ, Evanston, IL 60208, ray@earth.northwestern.edu, ray@earth.northwestern.edu

3:15 PM

Break

8

3:30 PM

HOLOCENE EVOLUTION, SEA LEVEL CHANGES AND ACTIVE TECTONICS OF THE GUERRERO COAST, MEXICO

RAMIREZ-HERRERA, M. Teresa, Geological Sciences, California State Univ Long Beach, 1250 Bellflower Blvd, Long Beach, CA 90840-3902, KOSTOGLODOV, Vladimir, Insituto de Geofisica, Universidad Nacional Autonoma de Mexico, Mexico D.F, KENNETT, Douglas J., Anthropology, Univ of Oregon Eugene, Eugene, VOORHIES, Barbara, Univ of California, Santa Barbara, Santa Barbara, NEFF, Hector, California State Univ Long Beach, Long Beach, CA and JONES, John G., Washington State University, Washington, ramirezt@csulb.edu, ramirezt@csulb.edu

9

3:45 PM

RAPID TECTONIC EXHUMATION OF THE CORDILLERA BLANCA, NORTHERN PERÚ

GARVER, John I.¹, SCHIFFMAN, Celia R.² and PERRY, Stephanie E.², (1)Geology Department, Union College, Union College, Olin Building, Schenectady, NY 12308-2311, (2)Geology Department, Union College, Olin Building, Schenectady, NY 12308-2311, garverj@union.edu, garverj@union.edu

10

4:00 PM

MODELING THE EVOLUTION OF CORDILLERAN PLATEAUS

MCQUARRIE, Nadine and LAVIER, Luc, Division of Geological and Planetary Sciences, California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125, nmcq@gps.caltech.edu, nmcq@gps.caltech.edu

11

4:15 PM

SYSTEMATIC CHANGES IN U-SERIES ISOTOPES ALONG THE GUATEMALAN VOLCANIC FRONT

WALKER, James A.¹, MICKELSON, J. Erik¹, THOMAS, Rebecca B.², PATINO, Lina C.³, CAMERON, Barry I.⁴ and EDWARDS, R. Lawrence⁵, (1)Northern Illinois Univ, Dept Geology & Environmental Geosciences, De Kalb, IL 60115-2854, (2)Dept Geology and Geophysics, Univ of Minnesota, Minneapolis, MN 55455, (3)Michigan State Univ, 206 Natural Science, East Lansing, MI 48824-1115, (4)Dept of Geosciences, Univ of Wisconsin-Milwaukee, Milwaukee, WI 53201, (5)Department of Geology & Geophysics, Univ of Minesota, Minneapolis, MN 55455, georock2@juno.com, georock2@juno.com

12

4:30 PM

MULTIPLE MANTLE MELTING REGIMES IN A SECONDARY FRONT VOLCANO, EL TIGRE, CENTRAL AMERICA

ZIMMER, Mindy, Department of Earth Sciences, Boston Univ, 685 Commonwealth Ave, Boston, MA 02215, PATINO, Lina, Geological Sciences, Michigan State Univ, 206 Natural Sci. Bld, East Lansing, MI 48824-1115, ASMEROM, Yemane, Dept. Earth and Planetary Sciences, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87106, CARR, Michael J., Rutgers State Univ - New Jersey, 610 Taylor Rd, Piscataway, NJ 08854-8066, POLYAK, Victor J., Earth and Planetary Sciences, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87131 and STIERMAN, Donald J., Earth, Ecological & Environmental Sciences, The Univ of Toledo, MS 604, 2801 West Bancroft, Toledo, OH 43606, mzimmer@bu.edu, mzimmer@bu.edu

13

4:45 PM

CONTINUITY (BA) AND CHANGE (U) IN CENTRAL AMERICAN GEOCHEMISTRY: NEW EVIDENCE FROM THE MIOCENE BALSAMO FORMATION IN EL SALVADOR

CONDIE, Claire and CARR, Michael J., Geological Sciences, Rutgers Univ, 610 Taylor Rd, Piscataway, NJ 08854-8066, pele26@yahoo.com, pele26@yahoo.com

14

5:00 PM

HIGH-MG ROCKS OF A TONGA (TOFUA) ARC SEAMOUNT: IMPLICATIONS FOR EARLY ARC HISTORY

HAWKINS, James W., Geoscience Research Div, Scripps Institution of Oceanography, La Jolla, CA 92093, jhawkins@ucsd.edu, jhawkins@ucsd.edu

15

5:15 PM

THE ROLE OF INTERMEDIATE TO FELSIC PLUTONISM IN THE ACCRETED TALKEETNA ARC, SOUTH CENTRAL ALASKA

RIOUX, Matthew¹, HACKER, Bradley¹, MATTINSON, James¹, KELEMEN, Peter², HANGHOJ, Karen² and PLANK, Terry³, (1)Geological Sciences, Univ of California, Santa Barbara, CA 93106, (2)Department of Geology and Geophysics, Woods Hole Oceanographic Institute, Woods Hole, MA 02543, (3)Earth Sciences, Boston Univ, 685 Commonwealth Ave, Boston, MA 02215, mrioux@umail.ucsb.edu, mrioux@umail.ucsb.edu

2003 Seattle Annual Meeting (November 2–5, 2003)

Tectonics III: Tectonics of the Circum-Pacific Rim in Space and Time: Focus on Alaska, Central and South America, and the Western Pacific