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2002 Denver Annual Meeting (October 27-30, 2002)

Session No. 18
Sunday, 27 October 2002: 8:00 AM-12:00 PM

T34. The Anisotropy of Magnetic Susceptibility of Granitic Rocks: New Methodological Developments, Interpretations, and Challenges

GSA Structural Geology and Tectonics Division

 

Eric C. Ferre, Michel de Saint-Blanquat and R.D. Law, Advocates
Paper #
Start Time
1
8:00 AM
GRANITE MAGNETIC TYPES : A REVIEW AND IMPLICATIONS FOR AMS STUDIES
FERRÉ, Eric, Department of Geology, Southern Illinois Univ, Carbondale, IL 62901, eferre@geo.siu.edu, eferre@geo.siu.edu
2
8:15 AM
NUMERICAL MODELLING OF ANISOTROPY OF MAGNETIC SUSCEPTIBILITY (AMS) IN PARAMAGNETIC ROCKS: EFFECTS OF MULTIPLE MINERAL PREFERRED ORIENTATIONS AND COMPOSITIONS
TRINDADE, Ricardo I.F., IAG/USP Rua do Matao,12Z6, Cidade Universitaria, Sao Paulo, SP 05508-900, Brazil, GAILLOT, Philippe J., LGHF, ISTEEM, U MONTPELLIER 2, Place Eugene Bataillon, CC056, Montpellier, F-34095, France and BOUCHEZ, Jean Luc, Laboratoire Mechanismes de Transfert en Geologie, OMP Université Paul Sabatier, 38 rue des 36 Ponts, Universite Paul Sabatier, Toulouse, 31400, France, gaillot@dstu.univ-montp2.fr, gaillot@dstu.univ-montp2.fr
3
8:30 AM
NUMERICAL MODELLING OF MAGNETIC SUSCEPTIBILITY IN FERROMAGNETIC ROCKS: THE ROLE OF MAGNETIC INTERACTIONS
GAILLOT, Philippe J.1, DE SAINT-BLANQUAT, Michel2 and BOUCHEZ, Jean Luc2, (1)LGHF, ISTEEM, U MONTPELLIER 2, Place Eugene Bataillon, CC056, Montpellier, F-34095, France, (2)Laboratoire Mechanismes de Transfert en Geologie, OMP Université Paul Sabatier, 38 rue des 36 Ponts, Universite Paul Sabatier, Toulouse, 31400, France, gaillot@dstu.univ-montp2.fr, gaillot@dstu.univ-montp2.fr
4
8:50 AM
REVIEW OF AARM STUDIES IN GRANITIC ROCKS
JACKSON, Mike, Geology & Geophysics, Univ of Minnesota, 108 Pillsbury Hall, 310 Pillsbury Dr SE, Minneapolis, MN 55455, irm@umn.edu, irm@umn.edu
5
9:05 AM
COMBINED PALEOMAGNETIC AND MAGNETIC ANISOTROPY ANALYSES OF PLUTONS: TOWARDS PLACING FABRIC DATA WITHIN A TECTONIC FRAMEWORK
HOUSEN, Bernard A., FAWCETT, Tammy and PETRO, Gary, Geology, Western Washington Univ, 516 High St, Bellingham, WA 98225-9080, bernieh@cc.wwu.edu, bernieh@cc.wwu.edu
 
9:25 AM
Break
6
9:40 AM
USE AND MISUSE OF ANISOTROPY OF MAGNETIC SUSCEPTIBILITY DATA FOR INTERPRETING MAGMATIC DEFORMATION: A REVIEW OF CASE STUDIES
BECKER, Jens K., Dept. of Earth Sciences, Univ of Ottawa, 140 Louis Pasteur Street, Ottawa, ON K1N 6N5, Canada and BENN, Keith, Earth sciences, Univ of ottawa, 140 Louis Pasteur street, ottawa, ON K1N 6N5, Canada, becker@jkbecker.de, becker@jkbecker.de
7
9:55 AM
THE EMPLACEMENT OF THE LAS CHACRAS POTRERILLOS BATHOLITH (SIERRA DE SAN LUIS, ARGENTINA): CONSTRAINTS FROM FIELD OBSERVATIONS, MICROSTRUCTURES, MAGNETIC FABRICS AND AGE DETERMINATIONS
STEENKEN, André1, LÓPEZ DE LUCHI, Mónica2, SIEGESMUND, Siegfried1 and WEMMER, Klaus1, (1)Geowissenschaftliches Zentrum Göttingen - Structural Geology, Univ of Göttingen, Goldschmidtstrasse 3, Göttingen, 37077, Germany, (2)Instituto de Geochronología y Geología Isótpica, INGEIS, Pabellon INGEIS, Ciudad Universitaria, Buenos Aires, 1428, Argentina, asteenk@gwdg.de, asteenk@gwdg.de
8
10:10 AM
GRANITE INTRUSION IN ISLAND ARC SETTING: CONSTRAINTS FROM AMS AND ROCK FABRICS ON THE YAKUSHIMA PLUTON, SW JAPAN
ANMA, Ryo1, FERRE, Eric2, ABDELDAYEM, Abdelaziz L.3 and SAKAMOTO, Hitoshi1, (1)Univ Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki, 305-8571, Japan, (2)Geology and Geophysics, Univ of Wisconsin, Madison, WI 53706, (3)Department of Geology, Univ of Tanta, Tanta, Egypt, anma@arsia.geo.tsukuba.ac.jp, anma@arsia.geo.tsukuba.ac.jp
9
10:25 AM
FLOW OF PARTIALLY MOLTEN CRUST RECORDED BY THE ANISOTROPY OF MAGNETIC SUSCEPTIBILITY IN LEUCOGRANITES
NORLANDER, Britt H., Geology & Geophysics, University of Minnesota, 108 Pillsbury Hall, Minneapolis, MN 55455, TEYSSIER, Christian, Geology & Geophysics, Univ of Minnesota, 108 Pillsbury Hall, Minneapolis, MN 55455 and FERRE, Eric C., Department of Geology and Geophysics, Univ of Wisconsin - Madison, 1215 W. Dayton Street, University of Wisconsin - Madison, Madison, WI 53706, norl0033@tc.umn.edu, norl0033@tc.umn.edu
10
10:40 AM
AMS FABRIC OF OROGENIC COLLAPSE IN MYLONITIC DETACHMENT AND GRANITE FOOTWALL
SIDMAN, Donald1, FERRÉ, Eric2 and TEYSSIER, Christian1, (1)Geology & Geophysics, Univ of Minnesota, Minneapolis, MN 55455, (2)Department of Geology, Southern Illinois Univ, Carbondale, IL 62901, sidm0001@umn.edu, sidm0001@umn.edu
11
10:55 AM
REINTERPRETATION OF THE “POST-DEFORMATIONAL” NATURE OF THE OTTERTAIL PLUTON USING ANISOTROPY OF MAGNETIC SUSCEPTIBILITY AND MICROSTRUCTURES
CZECK, Dyanna M.1, STURM, Claire L.2 and FEIN, Elizabeth M.2, (1)Department of Geoscience, Indiana Univ of Pennsylvania, 115 Walsh Hall, Indiana, PA 15705, (2)Department of Geology, Oberlin College, 52 W. Lorain St, Oberlin, OH 44074, dyanna.czeck@oberlin.edu, dyanna.czeck@oberlin.edu
12
11:10 AM
MAGMA FINGERS FEEDING THE EMPLACEMENT OF THE TRACHYTE MESA SILL/LACCOLITH, HENRY MTS., UTAH, BASED ON AMS, MAGNETIC, AND GRAVITY DATA
MORGAN, Sven S., Department of Geology, Central Michigan Univ, Brooks Hall, Mt. Pleasant, MI 48859, HORSMAN, Eric, Dept. of Geology and Geophysics, Univ. of Wisconsin, 1215 W Dayton St, Madison, WI 53706 and DE SAINT BLANQUAT, Michel, Univ P Sabatier, 38 Rue Des Trente-Six-Ponts, Toulouse, 31400, France, sven.morgan@cmich.edu, sven.morgan@cmich.edu
13
11:25 AM
AMS IN GRANITES AND LAVA FLOWS: TWO END-MEMBERS OF A CONTINUUM?
CAÑÓN-TAPIA, Edgardo, Geology, CICESE, P.O. Box 434843, San Diego, CA 92143, ecanon@cicese.mx, ecanon@cicese.mx
 
11:40 AM
Discussion
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