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中国科学院地质与地球物理研究所2008学术年会

作者： Simon A.Wilde Elena Belousova William L.Griffin Department of Applied Geology Curtin University of TechnologyP.O.Box U1987PerthWestern Australia 6845Australia Australian Research Council's National key Centre for Geochemical Evolution and Metallogeny of Continents(GEMOC) Department of Earth and Planetary SciencesMacquarie UniversityNew South Wales 2109Australia

Cratons are old,stable parts of the continental crust that have survived at least since Proterozoic time and have not undergone strong magmatism or tectonism since their stabilization. Traditionally,the growth of continental crust in the North China craton is considered to have been complete by Paleoproterozoic time,Phanerozoic events being largely restricted to surrounding orogenic ***,the eastern part of the North China craton contains large volumes of Mesozoic igneous rocks,with widespread metamorphic core complexes and pull-apart *** isotope compositions of magmatic zircon grains from igneous rocks in the Liaodong Peninsula indicate that widespread late Mesozoic granitoids formed by partial melting of ancient crust,but with significant input of a mantle component via magma mixing and crustal *** magmatism has resulted from removal and modification of lithospheric mantle,accompanied by asthenospheric *** Hf isotopic signatures thus record the addition of juvenile crust beneath the eastern part of the North China craton,which appears related to major extension and possibly slab rollback of the Pacific *** the mechanism,it is apparent that since ca.200 Ma,ancient lithosphere beneath the eastern North China craton has been progressively reactivated and replaced, resulting in"decratonization."Tertiary to Holocene volcanism in the area and major subsidence around the Gulf of Bohai suggest that the effects of the process are *** processes probably operated in the geological past,leading to significant modification of continental crust and requiring reconsideration of mechanisms for continental breakup and dispersal and of continental growth rates.

关键词： decratonization Phanerozoic crustal growth North China craton zircon Hf isotope magmatism

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The first power generation test of hot dry rock resources exploration and production demonstration project in the Gonghe Basin,Qinghai Province,China

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China Geology 2022年第3期5卷 372-382页

作者： Er-yong Zhang Dong-guang Wen Gui-ling Wang Wei-de Yan Wen-shi Wang Cheng-ming Ye Xu-feng Li Huang Wang Xian-chun Tang Wei Weng Kuan Li Chong-yuan Zhang Ming-xing Liang Hong-bao Luo Han-yue Hu Wei Zhang Sen-qi Zhang Xian-peng Jin Hai-dong Wu Lin-you Zhang Qing-da Feng Jing-yu Xie Dan Wang Yun-chao He Yue-wei Wang Zu-bin Chen Zheng-pu Cheng Wei-feng Luo Yi Yang Hao Zhang En-lai Zha Yu-lie Gong Yu Zheng Chang-sheng Jiang Sheng-sheng Zhang Xue Niu Hui Zhang Li-sha Hu Gui-lin Zhu Wen-hao Xu Zhao-xuan Niu Li Yang Center for Hydrogeology and Environmental Geology Survey China Geological SurveyMinistry of Natural ResourcesBaoding 071051China Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesChina Geological SurveyShijiazhuang 050061China Department of Natural Resources of Qinghai Province Xining 810001China Institute of Exploration Techniques Chinese Academy of Geological SciencesChina Geological SurveyLangfang 065000China Department of Hydrogeology and Environmental Geology China Geological SurveyMinistry of Natural ResourcesBeijing 100037China Chinese Academy of Geological Sciences China Geological SurveyBeijing 100037China Beijing Institute of Exploration Engineering China Geological SurveyMinistry of Natural ResourcesBeijing 100083China Institute of Geomechanics Chinese Academy of Geological SciencesChina Geological SurveyBeijing 100081China Institute of Geophysical and Geochemical Exploration Chinese Academy of Geological SciencesChina Geological SurveyLangfang 065000China Institute of Exploration Technology Chinese Academy of Geological SciencesChina Geological SurveyChengdu 611734China Geoscience Documentation Center China Geological SurveyMinistry of Natural ResourcesBeijing 100083China Jilin University Changchun 130012China Oil and Gas Survey China Geological SurveyMinistry of Natural ResourcesBeijing 100083China Guangzhou Institute of Energy Conversion Chinese Academy of SciencesGuangzhou 510640China Institute of geophysics China Earthquake AdministrationBeijing 100081China Institute of the Hydrogeology and Engineering Geology of Qinghai Xining 810008China

Hot dry rock(HDR)is a kind of clean energy with significant *** the 1970s,the United States,Japan,France,Australia,and other countries have attempted to conduct several HDR development research projects to extract thermal energy by breaking through key ***,up to now,the development of HDR is still in the research,development,and demonstration *** HDR exploration borehole(with 236℃ at a depth of 3705 m)was drilled into Triassic granite in the Gonghe Basin in northwest China in ***,China Geological Survey(CGS)launched the HDR resources exploration and production demonstration project in *** three years of efforts,a sequence of significant technological breakthroughs have been made,including the genetic model of deep heat sources,directional drilling and well completion in high-temperature hard rock,large-scale reservoir stimulation,reservoir characterization,and productivity evaluation,reservoir connectivity and flow circulation,efficient thermoelectric conversion,monitoring,and geological risk assessment,*** the whole-process technological system for HDR exploration and production has been preliminarily established *** first power generation test was completed in November *** results of this project will provide scientific support for HDR development and utilization in the future.

关键词： Hot dry rock Directional drilling Reservoir stimulation Microseismic monitoring Organic Rankine cycle(ORC) Power generation test Energy geological survey engineering Gonghe Basin Qinghai Province China

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The Effects of the Thermal Anomalies over the Tibetan Plateau and Its Vicinities on Climate Variability in China

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Advances in Atmospheric Sciences 2004年第3期21卷 369-381页

作者：钱永甫张艳黄燕燕黄樱姚永红 Department of Atmospheric Sciences Nanjing University Najing 210093 Department of Atmospheric Sciences Nanjing University Najing 210093he evident effects of the thermal anomalies over the Tibetan Plateau (TP) and its vicinities are summarized and discussed in this paper. By the singular value decomposition (SVD) technique and numerical simulations of the effect of the snow depth anomaly over the TP it is shown that the snow depth anomaly especially in winter is one of the factors innuencing precipitation in China and the winter snow anomaly is more important than the spring one. The relations between the sensible heat anomaly over the TP and the intensity of the South China Sea summer monsoon (SCSSM) are studied too and two key areas of the sensible heat anomaly over the TP are found. The relationships between the South Asia High (SAH) and the precipitation in the years with typical droughts or floods in the mid to lower valleys of the Yangtze River (MLVYR) and North China are investigated in some detail. It is found that not only the intensity of the SAH over the TP but also the 100-hPa height in a large area influences the precipitation in the above two regions. The effects of the SAH on the onsets of the tropical Asian summer monsoon (TASM) including the SCSSM and the tropical Indian summer monsoon (TISM) are studied as well. It is found that the onset times of both the SCSSM and the TISM are highly dependent upon the latitudinal position of the SAH center.

The evident effects of the thermal anomalies over the Tibetan Plateau (TP) and its vicinities are summarized and discussed in this paper. By the singular value decomposition (SVD) technique and numerical simulations of the effect of the snow depth anomaly over the TP, it is shown that the snow depth anomaly, especially in winter, is one of the factors innuencing precipitation in China, and the winter snow anomaly is more important than the spring one. The relations between the sensible heat anomaly over the TP and the intensity of the South China Sea summer monsoon (SCSSM) are studied, too, and two key areas of the sensible heat anomaly over the TP are found. The relationships between the South Asia High (SAH) and the precipitation in the years with typical droughts or floods in the mid to lower valleys of the Yangtze River (MLVYR) and North China are investigated in some detail. It is found that not only the intensity of the SAH over the TP, but also the 100-hPa height in a large area influences the precipitation in the above two regions. The effects of the SAH on the onsets of the tropical Asian summer monsoon (TASM) including the SCSSM and the tropical Indian summer monsoon (TISM) are studied as well. It is found that the onset times of both the SCSSM and the TISM are highly dependent upon the latitudinal position of the SAH center.

关键词： thermal anomaly the Tibetan Plateau South Asia High South China Sea monsoon pre-cipitation anomaly in China

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