检索结果-南通市图书馆

scientific drilling-to Construct the Telescopes that Inserting to the Earth Interior

Acta Geologica Sinica(English Edition) 2020年第S1期94卷 87-88页

作者： ZHANG Xiaoxi ZHANG Hui College of Marine Science and Technology China University of Geosciences(Wuhan)No.388 Lumo RoadWuhan 430074China

Mankind live in the earth for countless years, but until now;people do not really understand the connotation of the Earth. We know that the earth composition including the lithosphere, the asthenosphere, mantle and core. Of course, the lithosphere supports all the life on Earth. For a long time, geoscientists trying to use all kind of methods such as geological, geophysical and geochemical methods to detect and study the earth, but the knowledge about earth are mostly indirect. Through the direct observation to the lithosphere, people can understand and recognize the plate movement of ocean and the mainland, crustal stress, earthquakes, volcanic processes, deep resources, the origins of life, global climate change and biodiversity. They are all the basis of a series of geosciences problems(Su and Yang, 2010). Geological specimens, especially the true samples from deep of the Earth, are the most directly study subjects for geologists. But the only way to access the true samples from deep of the earth is drilling. The most directly relevant evidence always originated from the deep of the earth, such as core, cuttings, fluid samples and other physical samples. Continental scientific drilling has been demonstrated which is an efficient technique for directly obtaining information from the Earth’s surface to the deep crust, and is acknowledged as ―to build a telescope inserting to the interior of the Earth‖, as well as ―a key for opening the door of the Earth‖. Over the last four decades, continental scientific drilling has achieved great success in enhancing our knowledge of the Earth, and in providing information on mineral resources, large engineering projects and global change. SinoProbe-05 is a new scientific drilling venture,which builds on the success of the Chinese Continental scientific drilling Project(CCSD), and is similar to the current major scientific drilling project on the Wenchuan earthquake fault. SinoProbe-05 will focus on 6 critical tectonic and miner

关键词： scientific drilling drilling technology true samples Telescopes inserting to the earth

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Rock Damage Structure of the South Longmen-Shan Fault in the 2008 M8 Wenchuan Earthquake Viewed with Fault-Zone Trapped Waves and scientific drilling

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Acta Geologica Sinica(English Edition) 2014年第2期88卷 444-467页

作者： LI Yonggang XU Zhiqin LI Haibing State Key Laboratory of Continental Tectonic and Dynamics Institute of GeologyChinese Academy of Geological Science Department of Earth Sciences University of Southern California

This article is to review results from scientific drilling and fault-zone trapped waves （FZTWs） at the south Longman-Shan fault （LSF） zone that ruptured in the 2008 May 12 M8 Wenchuan earthquake in Sichuan,*** after the mainshock,two Wenchuan Fault scientific drilling （WFSD） boreholes were drilled at WFSD-1 and WFSD-2 sites approximately 400 m and 1 km west of the surface rupture along the Yinxiu-Beichuan fault （YBF）,the middle fault strand of the south LSF *** boreholes met the principal slip of Wenchuan earthquake along the YBF at depths of 589-m and 1230-m,*** slip is accompanied with a 100-200-m-wide zone consisting of fault gouge,breccia,cataclasite and *** to WFSD-1 site,the nearly-vertical slip of ～4.3-m with a 190-m wide zone of highly fractured rocks restricted to the hanging wall of the YBF was found at the ground surface after the Wenchuan earthquake.A dense linear seismic array was deployed across the surface rupture at this venue to record FZTWs generated by *** and 3-D finite-difference simulations of FZTWs recorded at this cross-fault array and network stations close to the YBF show a distinct low-velocity zone composed by severely damaged rocks along the south LSF at seismogenic *** zone is several hundred meters wide along the principal slip,within which seismic velocities are reduced by ～30-55％ from wall-rock velocities and with the maximum velocity reduction in the ～200-m-wide rupture core zone at shallow *** FZTW-inferred geometry and physical properties of the south LSF rupture zone at shallow depth are in general consistent with the results from petrological and structural analyses of cores and well log at WFSD *** interpret this remarkable low-velocity zone as being a break-down zone during dynamic rupture in the 2008 M8 *** examined the FZTWS generated by similar earthquakes before and after the 2008 mainshock and observed that seismic velocities

关键词： Rupture zone rock damage structure scientific drilling fault-zone trapped waves Wenchuan Earthquake Longmen-Shan Fault

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The Proposed Technical Plan for the drilling of Dabie-Sulu scientific Bore-hole

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Continental Dynamics 1998年第Z1期 105-109页

作者： ZHANG Wei Chinese Academy of Geoexploration, 31 Xueyuan Road, Haidian District, Beijing 100083, China

１ＩｎｔｒｏｄｕｃｔｉｏｎＣｈｉｎａｈａｓｂｅｃｏｍｅａｍｅｍｂｅｒｏｆＩｎｔｅｒｎａｔｉｏｎａｌＣｏｎｔｉｎｅｎｔａｌＳｃｉｅｎｔｉｆｉｃＤｒｉｌｉｎｇＰｒｏｇｒａｍ（ＩＣＤＰ）ａｎｄｉｓｎｏｗｍａｋｉｎｇｐｒ... 详细信息

１ＩｎｔｒｏｄｕｃｔｉｏｎＣｈｉｎａｈａｓｂｅｃｏｍｅａｍｅｍｂｅｒｏｆＩｎｔｅｒｎａｔｉｏｎａｌＣｏｎｔｉｎｅｎｔａｌＳｃｉｅｎｔｉｆｉｃＤｒｉｌｉｎｇＰｒｏｇｒａｍ（ＩＣＤＰ）ａｎｄｉｓｎｏｗｍａｋｉｎｇｐｒｅｐａｒａｔｉｏｎｆｏｒｉｍｐｌｅ...

关键词： scientific drilling deep core hole double hole drilling concept drilling technologies

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