GP44A:
The Magnetic Archive of Tectonic Processes I

Submit an Abstract to this Session



Session ID#: 34964

Session Description:
Magnetic methods are key tools that may be used to solve rock deformation, tectonic and geodynamic problems across a wide spectrum of scales. Paleomagnetic remanences provide unique geodynamic constraints that may be used to determine past plate motions and configurations, characterize tectonic systems at the regional-scale, or examine deformation associated with individual structures at the local-scale. Rock magnetic characterization provides insights into remanence acquisition during the formation and tectonic evolution of rock units, with, for example, recent advances in magnetic imaging allowing remagnetization processes to be explored at the grain-scale. Magnetic fabric analyses are now routinely employed in the quantification of petrofabric development at the micro- to macro-scales, complementing information obtained from other fabric techniques such as EBSD. This session therefore invites contributions from all areas where magnetic methods have been applied recently to tectonic problems, and particularly welcomes studies involving methodological advances or innovative applications of these techniques.
Primary Convener:  Antony Morris, University of Plymouth, School of Geography, Earth and Environmental Sciences, Plymouth, United Kingdom
Conveners:  Yu-Min Chou, Southern University of Science and Technology, Department of Ocean Science and Engineering, Guangdong, China, Bjarne Sven Guestav Almqvist, Uppsala University, Department of Earth Sciences, Geophysics, Uppsala, Sweden and Haibing Li, Key Laboratory of Continental Dynamics of Ministry of Natural Resources, Beijing, China
Chairs:  Antony Morris, University of Plymouth, School of Geography, Earth and Environmental Sciences, Plymouth, United Kingdom and Conall Mac Niocaill, University of Oxford, Oxford, United Kingdom
OSPA Liaison:  Bjarne Sven Guestav Almqvist, Uppsala University, Department of Earth Sciences, Uppsala, Sweden

Cross-Listed:
  • MR - Mineral and Rock Physics
  • S - Seismology
  • T - Tectonophysics
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1518 Magnetic fabrics and anisotropy [GEOMAGNETISM AND PALEOMAGNETISM]
1519 Magnetic mineralogy and petrology [GEOMAGNETISM AND PALEOMAGNETISM]
1525 Paleomagnetism applied to tectonics: regional, global [GEOMAGNETISM AND PALEOMAGNETISM]
1527 Paleomagnetism applied to geologic processes [GEOMAGNETISM AND PALEOMAGNETISM]

Abstracts Submitted to this Session:

Frictional melt generated by the 2008 Mw 7.9 Wenchuan earthquake and its faulting mechanisms (Invited) (210365)
Huan Wang1, Haibing Li2, Jialiang Si1, Zhiming Sun3, Lei Zhang4 and Xiangli He5, (1)Key Laboratory of Continental Dynamics of Ministry of Natural Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing, China, (2)Key Laboratory of Continental Dynamics of Ministry of Natural Resources, Beijing, China, (3)Key Laboratory of Paleomagnetism and Tectonic Reconstruction of Ministry of Natural Resources, Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China, (4)Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing, China, (5)Institute of Crustal Dynamics, China Earthquake Administration, Beijing, China
Magnetic enhancement and softening of fault gouges during seismic slip: Laboratory observation and implications (219593)
Tao Yang, China University of Geosciences Wuhan, Wuhan, China, Jianye Chen, Utrecht University, Utrecht, Netherlands and Mark J Dekkers, Utrecht Univ, Utrecht, Netherlands
Tectonic links between the Olympic-Wallowa lineament and the Hite fault, Cascadia backarc of Oregon and Washington, as interpreted from high-resolution aeromagnetic anomalies (Invited) (224284)
Richard J Blakely1, Brian L Sherrod2, Jonathan M. G. Glen1, Brent T. Ritzinger1 and Lydia Staisch1, (1)USGS, Menlo Park, CA, United States, (2)U.S. Geological Survey, Seattle, WA, United States
Extremely magnetized abyssal lavas erupted in active back-arc of the Okinawa Trough (223268)
Masakazu Fujii, NIPR National Institute of Polar Research / SOKENDAI, Tokyo, Japan, Hiroshi Sato, Senshu Univ, Kawasaki, Japan and Kyoko Okino, AORI, Univ. Tokyo, Kashiwa, Japan
Paleomagnetism and magnetic fabric of the Triassic rocks from Spitsbergen (223521)
Katarzyna Dudzisz1, Rafal Szaniawski2, Krzysztof Michalski2 and Geoffrey Manby3, (1)Karlsruhe Institute of Technology, Karlsruhe, Germany, (2)Institute of Geophysics Polish Academy of Sciences, Warsaw, Poland, (3)Natural History Museum, London, United Kingdom
Paleomagnetic and magnetic fabric studies of Lower Triassic red sandstones from the autochthonous cover of the Central Western Carpathians: new insights into paleogeographic setting and tectonic evolution of the area (251410)
Rafal Szaniawski, Polish Academy of Sciences, Institute of Geophysics, Warsaw, Poland, Leszek Jankowski, Geological Institute, Carpathian Branch,, Kraków, Poland, Mirosław Ludwiniak, Institute of Geology, University of Warsaw, Warsaw, Poland, Stefano Mazzoli, Università di Napoli “Federico II”, Dipartimento di Scienze della Terra, dell’Ambiente e delle Risorse (DiSTAR), Napoli, Italy and Jacek Szczygieł, Faculty of Earth Sciences, University of Silesia, Sosnowiec, Poland
Paleomagnetic and Rock Magnetic Study of Oligocene-Holocene Sedimentary Rocks from Northern Dominican Republic: Evidence of Vertical Axis Rotations (224435)
Marta Anson Sanchez1, Kenneth P Kodama2, Emilio L Pueyo3, Ruth Soto3, Jesus Garcia-Senz4, Javier Escuder-Viruete5 and Dr. Daniel Pastor-Galan, Ph.D.6, (1)IGME, Madrid, Spain, (2)Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States, (3)IGME-CSIC, Zaragoza, Spain, (4)IGME-CSIC, Madrid, Spain, (5)Instituto Geologico Minero Espana, Madrid, Spain, (6)Tohoku University, Frontier Research Institute for Interdisciplinary Sciences, Sendai, Japan

See more of: Geomagnetism, Paleomagnetism and Electromagnetism