Please wait a minute...
img img
高级检索
地球科学进展  2013, Vol. 28 Issue (6): 728-736    DOI: 10.11867/j.issn.1001-8166.2013.06.0728
IODP研究     
剥蚀型汇聚板块边缘大地震成因机理研究:来自国际综合大洋钻探344航次的报告
李永祥1, 鄢全树2,赵西西3,全体船上科学家
1.内生金属矿床成矿机制研究国家重点实验室,南京大学地球科学与工程学院, 江苏 南京 210093;2.国家海洋局第一海洋研究所,山东 青岛 266061;3.加州大学Santa Cruz分校,美国 加州 95064
Research on Seismogenesis at Erosive Convergent Margins: Report from IODP Expedition 344
Li Yongxiang1, Yan Quanshu2, Zhao Xixi3, Shipboard Science Party
1.State Key Laboratory for Mineral Deposit Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China;
2.The First Institute of Oceanography, Administration of Oceanography,  Qingdao 266061, China;
3.Department of Earth and Planetary Sciences, University of California, Santa Cruz, California 95064, USA
 全文: PDF(6412 KB)  
摘要:

旨在探究剥蚀型汇聚板块边缘大地震成因机理的国际综合大洋钻探(IODP)344航次于2012年10月23日至12月11日在中美洲地震频发的哥斯达黎加西部海域实施钻探。介绍了钻探区域的大地构造特征、该航次的主要科学目标、执行情况、所取得的初步成果以及对航次后研究工作的展望等。航次后更多深入细致的研究工作正在进行中,所取得的研究成果将集中在2014年南京召开的航次后学术研讨会上汇报、交流、集成、总结,从而提升对剥蚀型汇聚板块边缘大地震起源机理的认识。

关键词: IODP 344航次剥蚀型汇聚板块边界哥斯达黎加地震起源    
Abstract:

Integrated Ocean Drilling Program (IODP) expedition 344 was implemented from October 23 to December 11, 2012 in the offshore Costa Rica, which is known for the frequent occurrence of earthquakes. This expedition is part of the Costa Rica Seismogenesis Program (CRISP) that has an overarching goal of elucidating the origin, nucleation, and propagation of earthquakes in an erosive convergent margin. We participated in this expedition. Here we present numerous aspects of this expedition in this paper including tectonic settings of the drilling area, major scientific goals, field operation, preliminary results of this expedition, and post-cruise activities. More detailed and much in-depth research is  carried out after the cruise and post cruise results will be reported in the meeting to be held in Nanjing University in 2014. The synthesis of these new results should lead to better understanding of the seismogenesis of the study area.

Key words: Integrated Ocean Drilling Program Expedition 344    Erosive Convergent Margin    Costa Rica    Seismogenesis
收稿日期: 2013-03-04 出版日期: 2013-06-10
:  P345.1  
基金资助:

国家高技术研究发展计划重点项目“大洋钻探站位调查关键技术研究”(编号:2008AA093001)资助

作者简介: 李永祥(1974-),男,陕西凤翔人,教授,主要从事古地磁方面的教学与研究工作.E-mail:yxli@nju.edu.cn
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  
李永祥
鄢全树
赵西西
全体船上科学家

引用本文:

李永祥,鄢全树,赵西西,全体船上科学家. 剥蚀型汇聚板块边缘大地震成因机理研究:来自国际综合大洋钻探344航次的报告[J]. 地球科学进展, 2013, 28(6): 728-736.

Li Yongxiang, Yan Quanshu, Zhao Xixi, Shipboard Science Party. Research on Seismogenesis at Erosive Convergent Margins: Report from IODP Expedition 344. Advances in Earth Science, 2013, 28(6): 728-736.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2013.06.0728        http://www.adearth.ac.cn/CN/Y2013/V28/I6/728

[1]Harris R,Sakaguchi A, Petronotis K. Integrated Ocean Drilling Program Expedition 344[J]. Scientific Prospectus, 2012, doi:10.2204/iodp.sp.344.2012.

[2]Expedition 334 Scientists 2011. Integrated Ocean Drilling Program Expedition 334[J]. Preliminary Report,2011, doi:10.2204/iodp.pr.334.2011.

[3]Zhu Junjiang. Costa Rica Seismogenesis Project—Introduction to IODP Expedition 334[J]. Advances in Earth Science, 2011, 26(12):1 300-1 305.[朱俊江.哥斯达黎加地震起源计划——IODP 334航次介绍[J].地球科学进展,2011, 26 (12): 1 300-1 305.]

[4]von Huene R,Scholl D W. Observations at convergent margins concerning sediment subduction, subduction erosion, and the growth of the continental crust[J]. Review of Geophysics,1991, 29(3):279-316, doi:10.1029/91RG00969.

[5]Clift P, Vannucchi P. Controls on tectonic accretion versus erosion in subduction zones: Implications for the origin and recycling of the continental crust[J]. Review of Geophysics, 2004, 42(2), doi:10.1029/2003RG000127.

[6]Protti M, Guendel F, McNally K. Correlation between the age of the subducted Cocos plate and the geometry of the Wadati-Benioff Zone under Nicaragua and Costa Rica[C]∥Mann P, ed. Geologic and Tectonic Development of the Caribbean Plate Boundary in Southern Central America. Special Paper—Geological Society of America,1995,295:309-326.

[7]Newman A V, Schwartz S Y, Gonzalez V, et al.Along-strike variability in the seismogenic zone below Nicoya Peninsula, Costa Rica[J]. Geophysical Research Letter, 2002, 29(20):1 977, doi:10.1029/2002GL015409.

[8]Vannucchi P, Fisher D M, Bier S, et al. From seamount accretion to tectonic erosion: Formation of Osa mélange and the effects of Cocos Ridge subduction in southern Costa Rica[J]. Tectonics, 2006,25(4), doi:10.1029/2005TC001855.

[9]Heuret A, Lallemand S, Funiciello F, et al.Physical characteristics of subduction interface type seismogenic zones revisited[J]. Geochemstry, Geophyics, Geosystem, 2011, 12(1), doi:10.1029/2010GC003230.

[10]Vannucchi P, Sage F, Morgan J P, et al.Toward a dynamic concept of the subduction channel at erosive convergent margins with implications for interplate material transfer[J]. Geochemistry Geophysics Geosystems, 2012,13, doi:10.1029/2011GC003846.

[11]Lallemand S E, Schnürle P,  Malavieille J. Coulomb theory applied to accretionary and non-accretionary wedges: Possible causes for tectonic erosion and/or frontal accretion[J]. Journal of Geophysical Research,1994,99(B6):12 033-12 055, doi:10.1029/94JB00124.

[12]Meschede M, Zweigel P, Kiefer E. Subsidence and extension at a convergent plate margin: Evidence for subduction erosion off Costa Rica[J].Terra Nova, 1999, 11(2/3): 112-117.

[13]Zhu J, Kopp H, Flueh E R, et al.Crustal structure of the central Costa Rica subduction zone: Implications for basal erosion from seismic wide-angle data[J]. Geophysical Journal International, 2009, 178: 1 112-1 131.

[14]Walther C H E. The crustal structure of the Cocos Ridge off Costa Rica[J]. Journal of Geophysical Research,2003, 108(B3):2 136,doi:10.1029/2001JB000888.

[15]DeMets C. A new estimate for present-day Cocos-Caribbean plate motion: Implications for slip along the Central American volcanic arc[J]. Geophysical Research Letters, 2001, 28(21):4 043-4 046, doi:10.1029/2001GL013518.

[16]Turner H L III, LaFemina P, Saballos A, et al.Kinematics of the Nicaraguan forearc from GPS geodesy[J]. Geophysical Research Letters, 2007, 34(2):L02302, doi:10.1029/2006GL027586.

[17]Barckhausen U, Ranero C R, von Huene R, et al.Revised tectonic boundaries in the Cocos plate off Costa Rica: Implications for the segmentation of the convergent margin and for plate tectonic models[J]. Journal of Geophysical Research, 2001, 106(B9):19 207-19 220, doi:10.1029/2001JB000238.

[18]Harris R N, Spinelli G, Ranero C R, et al.Thermal regime of the Costa Rican convergent margin, 2. Thermal models of the shallow Middle America subduction zone offshore Costa Rica[J].Geochemstry, Geophyics, Geosystem, 2010, 11(12), doi:10.1029/2010GC003273.

[19]Lundgren P, Protti M, Donnellan A, et al. Seismic cycle and plate margin deformation in Costa Rica: GPS observations from 1994 to 1997[J].Journal of Geophysical Research, 1999, 104(B12):28 915-28 926, doi:10.1029/1999JB900283.

[20]McCaffrey R. Crustal block rotations and plate coupling[C]∥Stein S, Freymueller J, eds. Plate Boundary Zones. Geodynamics Series, 2002, 30:101-122, doi:10.1029/GD030p0101.

[21]Norabuena E, Dixon T H, Schwartz S, et al. Geodetic and seismic constraints on some seismogenic zone processes in Costa Rica[J]. Journal of Geophysical Research,2004, 109(B11), doi:10.1029/2003JB002931.

[22]LaFemina P, Dixon T H, Govers R, et al. Fore-arc motion and Cocos Ridge collision in Central America[J]. Geochemstry, Geophyics, Geosystem, 2009, 10(5), doi:10.1029/2008GC002181.

[23]Vannucchi P, Ujiie K, Stroncik N, et al.Proceedings of the Integrated Ocean Drilling Program 334[R/OL].[2012-12-05] Tokyo,2012, doi:10.2204/iodp.proc.334.2012.

[24]Park J O, Tsuru T, Kodaira S, et al.Splay fault branching along the Nankai subduction zone[J]. Science, 2002, 297(5 584):1 157-1 160,doi:10.1126/science.1074111.

[25]Marone C, Saffer D M. Fault friction and the upper transition from seismic to aseismic faulting[C]∥Dixon T H, Moore J C, eds. The Seismogenic Zone of Subduction Thrust Faults.New York: Columbia University Press, 2007:346-369.

[26]Fagereng A, Sibson R H. Melange rheology and seismic style[J].Geology,2010,38(8):751-754,doi:10.1130/G30868.1.

[27]von Huene R, Ranero C R, Weinrebe W. Quaternary convergent margin tectonics of Costa Rica, segmentation of the Cocos Plate, and Central American volcanism[J].Tectonics, 2000, 19:314-334.

[28]Langseth M G, Silver E A. The Nicoya convergent margin: A region of exceptionally low heat flow[J]. Geophysical Research Letters, 1996,23: 891-894.

[29]Expedition 344 Scientists 2013.Integrated Ocean Drilling Program Expedition 344[R/OL].[2012-12-10] Preliminary Report,doi:10.2204/iodp.pr.344.2013.http:∥publications.iodp.org/preliminary_report/344/index.html.

[30]Kutterolf S, Schindlbeck J C, Straub S, et al. Explosive Volcanism from the Galapagos Hotspot: Evidence from Miocene Marine Tephras Found During IODP Exp. 334 and 344[Z].Abstract, Kagoshima: Scientific Assembly of the International Association of Volcanology and Chemistry of the Earth’s Interior,  July 20-24, 2013.

[1] 朱俊江. 哥斯达黎加地震起源计划——IODP 334航次介绍[J]. 地球科学进展, 2011, 26(12): 1300-1305.