中法科学家赴青海昆仑山无人区联合考察地震现场     

中国地震局科技发展 《国际地震动态》2003,(1):25-25

20 0 2年 5月 ,由中法科学家联合组成的考察组赴青海昆仑山 8 1级地震现场进行了考察。此次考察是根据中法地震科技合作协议项目安排的。考察组成员由中国地震局地质研究所研究员徐锡伟等 3位中方科学家和法国宇宙科学院波尔·塔波尼尔等 5位法方科学家组成。　　　　　青海昆仑山 8 1级地震现场位于青藏高原无人区和国家可可西里自然保护区 ,自然环境十分恶劣。为保证考察的成功 ,考察组在人员、物资、装备和车辆等方面进行了仔细的部署和准备 ,青海省地震局、中国地震局兰州地震研究所和可可西里自然保护区管理局派出车辆和人员予以了大力…  相似文献   

Continental dynamics and continental earthquakes     

张东宁  张国民  张培震 《地震学报(英文版)》2003,16(5):583-592

Two key research projects in geoscience field in China since the IUGG meeting in Birmingham in 1999, the pro-ject of“East Asian Continental Geodynamics“ and the project of“Mechanism and Prediction of Strong Continental Earthquakes“ are introduced in this paper. Some details of two projects, such as their sub-projects, some initial research results published are also given here. Because of the large magnitude of the November 14, 2001 Kunlun Mountain Pass Ms=8. 1 earthquake, in the third part of this paper, some initial research results are reviewed for the after-shock monitoring and the multi-discipline field survey, the impact and disaster of this earthquake on the con-struction site of Qinghai-Xizang (Tibet) railway and some other infrastructure.  相似文献   

西昆仑塔县瓦卡地区早白垩世鱼化石的发现及其意义     

王宏君  杨志华  刘振涛  杨海波  胡志军  祁世军 《西北地质》2003,36(4):45-47

新疆塔什布尔干县瓦卡地区位处西昆仑山的腹地，过去本区无早白垩世地层的报导。因此，该区早白垩世鱼化石的发现对该区地层的划分、构造格架的建立和发展演化都将起到重要的作用。  相似文献   

Geochemistry of Mesoproterozoic Volcanic Rocks in the Western Kunlun Mountains: Evidence for Plate Tectonic Evolution   总被引：1，自引：0，他引：1  

ZHANG Chuanlin  DONG Yongguan  ZHAO Yu  WANG Aiguo  GUO Kunyi Guiyang Institute of Geochemistry  Chinese Academy of Sciences  Guiyang  Guizhou  E-mail: zchuanlin@sina.com Nanjing Institute of Geology  Mineral Resources  Nanjing  Jiangsu 《《地质学报》英文版》2003,77(2):237-245

Mesoproterozoic volcanic rocks occurring in the north of the western Kunlun Mountains can be divided into two groups. The first group (north belt) is an reversely-evolved bimodal series. Petrochemistry shows that the alkalinity of the rocks decreases from early to late: alkaline→calc-alkaline→tholeiite, and geochemistry proves that the volcanic rocks were formed in rifting tectonic systems. The sedimentary facies shows characteristics of back-arc basins. The second (south belt) group, which occurs to the south of Yutian-Minfeng-Cele, is composed of calc-alkaline island arc (basaltic) andesite and minor rhyolite. The space distribution, age and geochemistry of the two volcanite groups indicate that they were formed in a back-arc basin (the first group) and an island arc (the second group) respectively and indicate the plate evolution during the Mesoproterozoic. The orogeny took place at -1.05 Ga, which was coeval with the Grenville orogeny. This study has provided important geological data for explorin  相似文献   

青藏铁路昆仑山隧道工程地质条件     

魏国俊  张建林 《冰川冻土》2003,25(8):8-13

主要论述了昆仑山隧道这一高原冻土隧道的工程地质条件，特别就隧道区多年冻土的认识及具体的工作方法、古冰川作用及冰锥的分布及其成因和隧道山体地下水情况分析等做了较为详尽的描述，为隧道设计、施工提供了科学的地质依据及工程措施意见。  相似文献   

用钻孔应力—应变资料研究昆仑山8.1级地震     

邱泽华 《地壳构造与地壳应力》2002,(1):2-10

钻孔应力-应变观测是地震前兆监测的一个重要手段。经过三十多年的曲折历程。目前面临新的发展机遇。如何充分发挥这种观测的作用，提高这种观测资料的利用率，是研究人员和台间观测人员都需要认真考虑的问题。台站提交地震观测报告是提高观测资料利用率的一个重要措施，应该成为台站的一项重要任务，昆仑山8.1级大地震的发生，为钻孔应力-应变台网将这项任务纳入台站工作提供了一个契机。  相似文献   

长清台昆仑山8.1级大地震钻孔应变观测报告     

张志慧  孔向阳等 《地壳构造与地壳应力》2002,(1):27-29

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安丘台昆仑山8.1级地震体应变观测报告     

赵银刚 《地壳构造与地壳应力》2002,(1):33-33

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六合台昆仑山8.1级地震体应变观测报告     

王圣典  李飞 《地壳构造与地壳应力》2002,(1):38-39

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Three Alkali—Rich Intrusive Rock Belts Bewly Discovered in the Mt.Kunlkun—Mt.Altun Region,Xinjiang,China     

朱笑青  王元龙等 《中国地球化学学报》2002,21(3):244-251

The newly discovered three alkali-rich intrusive rock belts in the Mt.Kunlun Mt.Altun region of southern Xinjiang are the Lapeiquan-Yitunbulak alkali-rich intrusive fock belt, the Gez-Taxkorgan alkali-rich intrusive rock belt and the Beeilisai-Abulash alkali-rich intrusive rock belt.The former two belts were formed during the Yanshanian period,and the third one was formed during the Himalayan period,which is the youngest alkali-rich intrusive rock belt in China.The discovery of the alkali-rich intrusive rock belts is of great significance in shedding light on the history of tectono-magmatic activities in this region.  相似文献