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Special Issue
TECTONOPHYSICS – VOLUME 402 – NOS. 1– 4 Special Issue
Pseudotachylytes and Seismogenic Friction: Current Research Eric C. Ferré Department of Geology, Southern Illinois University, Carbondale, IL, USA E-mail address: [email protected] Joseph L. Allen Department of Physical Sciences and Geology, Concord University, Athens, WV, USA E-mail address: [email protected] Aiming Lin Department of Geosciences, Shizuoka University, Ohya, Shizuoka, Japan E-mail address: [email protected] Acting Editor-in-Chief: J.-P. Burg CONTENTS Preface Pseudotachylytes and seismogenic friction: an introduction to current research E.C. Ferre´, J.L. Allen and A. Lin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Research Papers Can pseudotachylytes be used to infer earthquake source parameters? An example of limitations in the study of exhumed faults G. Di Toro, G. Pennacchioni and G. Teza. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Propagation of seismic slip from brittle to ductile crust: Evidence from pseudotachylyte of the Woodroffe thrust, central Australia A. Lin, T. Maruyama, S. Aaron, K. Michibayashi, A. Camacho and K.-i. Kano . . . . . . . . . . . . . . . . . . . . . A multi-kilometer pseudotachylyte system as an exhumed record of earthquake rupture geometry at hypocentral depths (Colorado, USA) J.L. Allen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fault plane processes and mesoscopic structure of a strong-type seismogenic fault in tonalites (Adamello batholith, Southern Alps) G. Di Toro and G. Pennacchioni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Immiscible sulfide droplets in pseudotachylyte: Evidence for high temperature (N 1200 8C) melts J.F. Magloughlin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Geochemistry and 40Ar/39Ar geochronology of pseudotachylyte associated with UHP whiteschists from the Dora Maira massif, Italy M.A. Cosca, R. Caby and F. Bussy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
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3
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21
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37
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55
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81
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93
vi
Contents
Crystal fractionation in the friction melts of seismic faults (Alpine Fault, New Zealand) L.N. Warr and B.A. van der Pluijm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The origin of high magnetic remanence in fault pseudotachylites: Theoretical considerations and implication for coseismic electrical currents E.C. Ferre´, M.S. Zechmeister, J.W. Geissman, N. MathanaSekaran and K. Kocak . . . . . . . . . . . . . . . . . . . . Magnetic properties and paleointensity of pseudotachylytes from the Sudbury structure, Canada: Petrologic control N. Nakamura and Y. Iyeda . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Calcite strains, kinematic indicators, and magnetic flow fabric of a Proterozoic pseudotachylyte swarm, Minnesota River valley, USA J.P. Craddock and J.F. Magloughlin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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111
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125
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141
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153
The papers on pages 37, 81 and 141 were edited by Eric C. Ferre´, those on pages 3, 21 and 153 by Joseph L. Allen, and those on pages 55, 93, 111 and 125 by Aiming Lin.
Pseudotachylytes and Seismogenic Friction: Current Research Eric C. Ferré Department of Geology, Southern Illinois University, Carbondale, IL, USA E-mail address: [email protected] Joseph L. Allen Department of Physical Sciences and Geology, Concord University, Athens, WV, USA E-mail address: [email protected] Aiming Lin Department of Geosciences, Shizuoka University, Ohya, Shizuoka, Japan E-mail address: [email protected] Acting Editor-in-Chief: J.-P. Burg CONTENTS Preface Pseudotachylytes and seismogenic friction: an introduction to current research E.C. Ferre´, J.L. Allen and A. Lin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Research Papers Can pseudotachylytes be used to infer earthquake source parameters? An example of limitations in the study of exhumed faults G. Di Toro, G. Pennacchioni and G. Teza. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Propagation of seismic slip from brittle to ductile crust: Evidence from pseudotachylyte of the Woodroffe thrust, central Australia A. Lin, T. Maruyama, S. Aaron, K. Michibayashi, A. Camacho and K.-i. Kano . . . . . . . . . . . . . . . . . . . . . A multi-kilometer pseudotachylyte system as an exhumed record of earthquake rupture geometry at hypocentral depths (Colorado, USA) J.L. Allen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fault plane processes and mesoscopic structure of a strong-type seismogenic fault in tonalites (Adamello batholith, Southern Alps) G. Di Toro and G. Pennacchioni . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Immiscible sulfide droplets in pseudotachylyte: Evidence for high temperature (N 1200 8C) melts J.F. Magloughlin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Geochemistry and 40Ar/39Ar geochronology of pseudotachylyte associated with UHP whiteschists from the Dora Maira massif, Italy M.A. Cosca, R. Caby and F. Bussy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
.
3
.
21
.
37
.
55
.
81
.
93
vi
Contents
Crystal fractionation in the friction melts of seismic faults (Alpine Fault, New Zealand) L.N. Warr and B.A. van der Pluijm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The origin of high magnetic remanence in fault pseudotachylites: Theoretical considerations and implication for coseismic electrical currents E.C. Ferre´, M.S. Zechmeister, J.W. Geissman, N. MathanaSekaran and K. Kocak . . . . . . . . . . . . . . . . . . . . Magnetic properties and paleointensity of pseudotachylytes from the Sudbury structure, Canada: Petrologic control N. Nakamura and Y. Iyeda . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Calcite strains, kinematic indicators, and magnetic flow fabric of a Proterozoic pseudotachylyte swarm, Minnesota River valley, USA J.P. Craddock and J.F. Magloughlin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
111
.
125
.
141
.
153
The papers on pages 37, 81 and 141 were edited by Eric C. Ferre´, those on pages 3, 21 and 153 by Joseph L. Allen, and those on pages 55, 93, 111 and 125 by Aiming Lin.