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			森羅万象セミナー    第 49 回
		   http://www.ep.sci.hokudai.ac.jp/~sinra/

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		日時	2001 年 3 月 19 日 (月) 13:00 〜 14:30
		場所	理学 5 号館 Rm 201

 『地球内部の３次元構造と地震・火山活動：local scaleからglobal scaleまで』

				趙  大鵬
		愛媛大学・地球深部ダイナミクス研究センター 
			http://www.ehime-u.ac.jp


[講演要旨]

Seismic tomography has been the most powerful tool to determine
the three-dimensional structure of the Earth's interior, and it
has provided far-reaching and deep impacts on the geological
community and signifys a revolution in Earth sciences.  It will
continue to influence the future developments of Earth sciences.
In this seminar I will introduce the recent findings of tomographic
studies on several topics, including the recent advances of the
tomographic methodology, subducting slab and arc magmatism,
structure and process of large earthquake sources, origins of
hotspots and mantle plumes, and Earth's deep structure and
dynamics.

世話人：高波鐵夫 

# 諸事情により、変更や追加のある場合があります。
# 話題希望要望サポーター、大募集中です

セミナー幹事：横畠 徳太



[趙  大鵬 さんのプロフィール]

DAPENG ZHAO, PH.D.

Associate Professor
Geodynamics Research Center
Ehime University
Matsuyama 790-8577
JAPAN

E-mail: zhao@sci.ehime-u.ac.jp
http://www.ehime-u.ac.jp/


BORN: April 30, 1963, Zhaodong, Heilongjiang, China
CITIZENSHIP:  U.S.A.
MARITAL STATUS: Married to Lucy Liu-Zhao, Two sons (Max, age 9; Frank, age 4)
EDUCATION:
1984  B.A.  (Geoscience) Peking University, Peking, China
1988  M.S.  (Geophysics) Tohoku University, Sendai, Japan
1991  Ph.D. (Geophysics) Tohoku University, Sendai, Japan


PROFESSIONAL EXPERIENCE:
1998.2-        Associate Professor, Department of Earth Sciences,
               Ehime University, Matsuyama, JAPAN (Current position)
1997.7-1998.1  Research Associate Professor, Department of Earth Sciences,
               University of Southern California, Los Angeles, California
1995.5-1997.6  Senior Research Scientist, Department of Earth & Planetary
               Sciences, Washington University, St. Louis, Missouri
1992.5-1995.4  Texaco Research Fellow, Seismological Laboratory,
               California Institute of Technology, Pasadena, California
1991.5-1992.4  Post-doctoral Research Fellow, Geophysical Institute,
	       University of Alaska, Fairbanks, Alaska


OTHER PROFESSIONAL EXPERIENCE:
2000.4-2001.3  Adjunct Associate Professor, Earthquake Research Institute,
               University of Tokyo, Japan.
2000.4-2001.3  Adjunct Associate Professor, Department of Earth Sciences,
               Okayama University, Japan.


GRADUATE AND POSTDOCTORAL ADVISORS:
Prof. Hiroo Kanamori (California Institute of Technology, USA)
Prof. Akira Hasegawa (Tohoku University, Japan)


PROFESSIONAL SOCIETIES:
American Geophysical Union
Seismological Society of America
Seismological Society of Japan


RESEARCH AND TEACHING INTERESTS:
Earthquake Seismology;  Seismic Tomography;  Earth's Interior Structure;
Physics of Earthquake Sources;  Stress in the Crust and Lithosphere;
 Subduction Zones; Earthquake Fault Zones


HONORS AND AWARDS:
Texaco Research Prize, California Institute of Technology, 1992.
	Research Scholarship, Japanese Ministry of Education, Science
	and Culture, 1986-1991
Outstanding Student Award, Peking University, 1983


POST-DOCTORAL FELLOW ADVISING
Dr. Srinagesh Davuluri (from National Geophysical Research Institute, India)
Dr. Inma Serrano (from Granada University, Spain)


GRADUATE STUDENTS ADVISING
Y. Sugihara, K. Asamori, F. Ochi, R. Sanda, A. Kurogi, M. Salah, O.P. Mishra
(Ehime University, Japan)


PROFESSIONAL SERVICE:
1. Guest Editor, TECTONOPHYSICS special issue "Seismic Structure and Stress
	Regime of Subduction Zones", Volume 319, No. 4, pages 223-366,
	April 20, 2000.
2. Symposium Convener, "Subduction Zones: Structure, Dynamics and Magmatism",
	1997 IASPEI General Assembly, Thessaloniki, Greece, August 18-29, 1997.
3. Session Chairman, "Seismic Structure of Subduction and Collision Zones",
	1995 Fall AGU Meeting, San Francisco, December 11-15, 1995.
4. Session Chairman, "Subduction Zones", 91st Annual Meeting of the
	Seismological Society of America, St. Louis, April 1-4, 1996.
5. Session Chairman, "Physics of Earthquakes: Theoretical Models,
	Observational and Laboratory Constraints", 1996 Fall AGU Meeting,
	San Francisco, December 15-19, 1996.


SIGNIFICANT PUBLICATIONS IN REFERRED INTERNATIONAL JOURNALS:
(1) Zhao, D., S. Horiuchi and A. Hasegawa (1990)  3-D seismic velocity 
	structure of the crust and the uppermost mantle in the northeastern 
	Japan arc, Tectonophysics, 181, 135-149.
(2) Hasegawa, A., D. Zhao, S. Hori, A. Yamamoto and S. Horiuchi (1991) 
	Deep structure of the northeastern Japan arc and its relationship 
	to seismic and volcanic activity, Nature, 352, 683-689.
(3) Zhao, D. and H. Kanamori (1992)  P-wave image of the crust and uppermost 
	mantle in southern California, Geophys. Res. Lett., 19, 2329-2332.
(4) Zhao, D., A. Hasegawa and S. Horiuchi (1992)  Tomographic Imaging of P 
	and S wave velocity structure beneath northeastern Japan, J. Geophys. 
	Res., 97, 19909-19928.
(5) Zhao, D., S. Horiuchi and A. Hasegawa (1992)  Seismic velocity structure
	of the crust beneath the Japan Islands,  Tectonophysics, 212, 289-301.
(6) Zhao, D. and A. Hasegawa (1993)  P-wave tomographic imaging of the crust 
	and upper mantle beneath the Japan Islands, J. Geophys. Res., 98, 
	4333-4353.
(7) Zhao, D. and H. Kanamori (1993)  The 1992 Landers earthquake sequence:
	Earthquake occurrence and structural heterogeneities, Geophys. Res. 
	Lett., 20, 1083-1086.
(8) Hasegawa, A., A. Yamamoto, D. Zhao, S. Hori, and S. Horiuchi (1993) 
	Deep structure of arc volcanoes as inferred from seismic observations,
	Phil. Trans. R. Soc. Lond. A, 342, 167-178.
(9) Zhao, D., A. Hasegawa, and H. Kanamori (1994) Deep structure of Japan
	subduction zone as derived from local, regional and teleseismic events,
	J. Geophys. Res., 99, 22313-22329.
(10) Zhao, D. and A. Hasegawa (1994)  Teleseismic evidence for lateral 
	heterogeneities in the northeastern Japan arc,  Tectonophysics, 237, 
	189-199.
(11) Hasegawa, A. and D. Zhao (1994)  Deep structure of island arc magmatic
	regions as inferred from seismic observations, Magmatic Systems
	(edited by M. P. Ryan), Academic Press, San Diego, Chapter 8,
        pp. 179-195.
(12) Zhao, D. and H. Kanamori (1995)  The 1994 Northridge earthquake: 3-D
	crustal structure in the rupture zone and its relation to the
	aftershock locations and mechanisms,  Geophys. Res. Lett., 22, 763-766.
(13) Zhao, D., D. Christensen and H. Pulpan (1995)  Tomographic imaging of
	the Alaska subduction zone,  J. Geophys. Res., 100, 6487-6504.
(14) Zhao, D., H. Kanamori, H. Negishi (1996)  Tomography of the source area
	of the 1995 Kobe earthquake: Evidence for fluids at the hypocenter?
	SCIENCE, 274, 1891-1894.
(15) Zhao, D., H. Kanamori, and E. Humphreys (1996)  Simultaneous inversion
	of local and teleseismic data for the crust and mantle structure in
	southern California,  Phys. Earth Planet. Inter., Vol. 93, 191-214.
(16) Ma, K., J. Wang and D. Zhao (1996) P and S wave tomographic images
	beneath the Taiwan region, J. Phys. Earth, 44, 85-105.
(17) Zhao, D., Y. Xu, D. Wiens, L. Dorman, J. Hildebrand, S. Webb (1997)
	Depth extent of the Lau back-arc spreading center and its relation to
	subduction processes, SCIENCE, 278, 254-257.
(18) Zhao, D., H. Kanamori, and D. Wiens (1997) State of stress before and
	after the 1994 Northridge earthquake,  Geophys. Res. Lett., 24, 
	519-522.
(19) Zhao, D., T. Matsuzawa, and A. Hasegawa (1997)  Morphology of the
	subducting slab boundary in the northeastern Japan arc, Phys. Earth 
	Planet. Inter., 102, 89-104.
(20) Zhao, D. (1998) Seeking the cause of earthquakes, Science Spectra, 11, 
	6-10.
(21) Zhao, D. and H. Negishi (1998) The 1995 Kobe earthquake: Seismic image 
	of the source zone and its implications for the rupture nucleation, 
	J. Geophys. Res., 103, 9967-9986.
(22) Fan, G., T. Wallace, and D. Zhao (1998)  Tomographic imaging of deep
	velocity structure beneath the eastern and southern Carpathians,
	Romania: Implications for continental collision,  J. Geophys. Res., 
	103, 2705-2723.
(23) Kayal, J.R. and D. Zhao (1998) Three-dimensional seismic structure of
	Shillong Plateau and Assam Valley, northeast India, Bull. Seismol. 
	Soc. Am., 88, 667-676.
(24) Serrano, I., J. Morales, D. Zhao, F. Torcal, F. Vidal (1998) P-wave 
	tomographic images in the central Betics-Alboraan Sea (South Spain) 
	using local earthquakes: Contribution for a continental collision, 
	Geophys. Res. Lett., 25, 4031-4034.
(25) Zhao, D. and T. Mizuno (1999) Crack density and saturation rate in the
	1995 Kobe earthquake region, Geophys. Res. Lett., 26, 3213-3216.
(26) Gorbatov, A., J. Domingue, G. Suarez, V. Kostoglodov, D. Zhao and
	E. Gordeev (1999)  Tomographic imaging of the P-wave velocity structure
	beneath the Kamchatka peninsula, Geophys. J. Int., 137, 269-279.
(27) Zhao, D., F. Ochi, A. Hasegawa and A. Yamamoto (2000) Evidence for the
	location and cause of large crustal earthquakes in Japan, J. Geophys. 
	Res., 105, 13579-13594.
(28) Zhao, D. and A. Hasegawa (2000) Seismic structure and stress regime of
	subduction zones, Tectonophysics, 329, 223-224.
(29) Iwamori, H. and D. Zhao (2000) Melting and seismic structure beneath the
	northeast Japan arc,  Geophys. Res. Lett., 27, 425-428.
(30) Roth, E., D. Wiens and D. Zhao (2000) An empirical relationship between
	seismic attenuation and velocity anomalies in the upper mantle, 
	Geophys. Res. Lett., 27, 601-604.
(31) Zhao, D., K. Asamori and H. Iwamori (2000) Seismic structure and magmatism
	of the young Kyushu subduction zone, Geophys. Res. Lett., 27, 
	2057-2060.
(32) Zhao, D. and J.R. Kayal (2000) Impact of seismic tomography on Earth
	sciences, Current Science, 79, 1208-1214.
(33) Zhao, D. (2001) New advances of seismic tomography and its applications
	to subduction zones and earthquake fault zones, The Island Arc, 10, 
	68-84.
(34) Zhao, D., K. Wang, G. Rogers and S. Peacock (2001) Tomographic image of
	low P velocity anomalies above slab in northern Cascadia subduction
	zone, Earth, Planet and Space, in press.
(35) Zhao, D. (2001) Seismological structure of subduction zones and its
	implications for arc magmatism and dynamics, Phys. Earth Planet. 
	Inter., in press.


OTHER PUBLICATIONS:
(1) Zhao, D. (1999) Seismic tomography and its applications to the imaging of
	subduction zones and earthquake fault zones,  in "Recent Developments 
	in Geophysical Research", Vol 2, 15-32, Research Signpost.
(2) Zhao, D., S. Horiuchi and A. Hasegawa (1990)  P-wave velocity of the
	uppermost mantle off the Japan Sea coast,  Tohoku Geophys. J., 33, 
	177-183.
(3) Zhao, D., F. Ochi and K. Asamori (1999) Where do large crustal earthquakes
	occur in Japan? -- Seismological evidence,  Earth Monthly, 244, 
	667-673.
(4) Zhao, D., F. Ochi, and K. Asamori (1999) Deep structure of southwest Japan
	and its relationship to seismic and volcanic activity, 	Earth Monthly,
	238, 205-211.