Japan Geoscience Union Meeting 2014

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Oral

Symbol S (Solid Earth Sciences) » S-CG Complex & General

[S-CG65_2AM2] Stress and Crustal Dynamics

Fri. May 2, 2014 11:00 AM - 11:30 AM 423 (4F)

Convener:*Katsushi Sato(Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University), Kazutoshi Imanishi(National Institute of Advanced Industrial Science and Technology), Makoto Otsubo(National Institute of Advanced Industrial Science and Technology (AIST), Institute of Geology and Geoinformation), Aitaro Kato(Earthquake Research Institute, University of Tokyo), Chair:Katsushi Sato(Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University)

Deformation and stress fields and their temporal changes are keys to understanding the Earth's crustal dynamics. Methods for estimating crustral stress state have been developed in each discipline such as seismology, structural geology and geotechnology. For example, the following methods are widely employed; stress tensor inversion techniques to analyze focal mechanisms of earthquakes, orientations of faults, dikes, veins and microcracks gathered from outcrops and hand specimens, in situ stress measurements in boreholes and paleopiezometers such as calcite twins and micro boudinages. For the purpose of discussing crustal dynamics, this session aims at sharing achievements and unsolved problems in studies of crustal stress and deformation interdisciplinarily. We welcome presentations of methodology, application, rock experiments, and numerical simulations.

11:15 AM - 11:30 AM

[SCG65-P01_PG] Comparison of stress modeling with in-situ strain monitoring at seismogenic area in South African gold mines

3-min talk in an oral session

*Hiroshi OGASAWARA1, Taishi KATSURA2, Gerhard HOFMANN3, Masao NAKATANI4, Yasuo YABE5, Hiroshi ISHII6, Shigeru NAKAO7, Makoto OKUBO6, Ward ANTHONY8, Wienand JERRY9, Lenegan PATRICK9, Hironori KAWAKATA1, Osamu MURAKAMI1, Taka UCHIURA1 (1.Ritsumeikan University, 2.Hitachi Solutions, ltd., 3.Anglogold Ashanti ltd., 4.The university of Tokyo, 5.Tohoku University, 6.Tono Research Institute of Earthquake, 7.Kagoshima University, 8.Seismogen CC, 9.Sibanye Gold ltd.)