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RESEARCH PROGRESS OF ALTYN FAULT iN WESTERN CHiNA

地学前缘 2000年第S1期7卷 243-244页

作者： ge xiaohong, ye huiwen, liu yongjiang, liu junlai, pan hongxun, ren shoum.i (College of Earth Sciences, Changchun University of Science and Technology, Changchun 130061,China)

As the northern boundary of Tibetan Plateau, the Altyn strike\|slip fault in western China has a very important implication to the tectonic division in the middle Asia continent, and has become a hot topic for the research on continental dynamics of Tibetan Plateau. During the research of our project funded by NSFC, we collected a sample of Caledonian mylonitized granite in the north of Dangjin pass and two samples of Jurassic meta\|sedimentary rocks in Qaidam gate fault\|valley and geshi fault\|valley. The texture study shows that all samples were reformed by ductile deformation with undulating extinction and elongated quartzes. The metamorphic p\|T condition are estimated to be 350～500℃ and 150～450MPa They contain the syntectonic\|growing minerals such as white mica, chlorite, sericite and biotite etc. By dating these minerals, we obtain a group white mica 40 Ar/ 39 Ar isochronal age of 89 2～91 7Ma and a (46 6±6 4)Ma sericite 40 Ar/ 39 Ar apparent age. These data are very important to determine the strike\|slip age of Altyn *** 40 Ar/ 39 Ar age data (91～46Ma), we obtained, are reported for the first time in the researches of Altyn fault belt. The ages of 91～89Ma indicate that Altyn fault began to slip with slight metamorphism around late Jurassic. These ages are consistent with the ages of the collision between Kohistan\|Ladakh massif (northwestern india) and Eurasian continent at 102～*** suggests that the strike\|slip movement of Altyn fault should be related to the formation of the so\|called“Western tectonic joint" in Nepal\|western Kunlun area. The age of 46Ma should represent the overprint age of the tectono\|thermal event during main collision between indian and Eurasian continents along the Yarlung Zangbo River. With the continent\|continent collision of indian and Eurasian Plates, Altyn fault underwent Multi\|phase strike\|slip events in late Paleocene—Oligocene (37～35Ma), Miocene (22～20Ma), Miocene—Pliocene (8～6Ma), Pliocene (2 5Ma) and early

关键词： reconstruction geochronology tectonic Altyn fault

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An Early Stage Faulting Along the Altun Mountain Range——Microstructural Evidences

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Global geology 1999年第2期4卷 160-165页

作者： liu junlai, pan hongxun, ye huiwen, ge xiaohong and liu yongjiang (Changchun Univ. Sci & Tech., 130026, Changchun, China)

Structural, microstructural analysis is done on the Altun fault zo ne and fault rocks. The major characteristics of faulting are summarized. Micros tructural observation reveals a complicated evolution of the fault zone. Much at tention is paid to the microstructural observation and dynamic analysis of fault ing. The occurrence of phengite grains suggest abnormally high pressure conditio ns during ductile deformation and metamorphism, while the occurrence of muscovit e-chlorite mineral assemblage suggest a low temperature and low pressure condit i on. Micro-component analysis on the inter-grown muscovite and chlorite grains gives similar information. it is concluded that the first deformation along the Altun fault zone is a type of ductile shearing, forming mylonites and mylonitic rocks along the fault zone. A post-Jurassic deformation is primarily suggested by the involvement of the l atest tectonic units (Jurassic) in the ductile *** early tectonic ev ent involves deformation and metamorphism under conditions in the upper crust, w ith T-P conditions varying to a large extent (T-270℃ ～350℃; P-0.005GPa～0. 43GPa), which may be attributed to the extra tectonic stresses.

关键词： the Altun fault zone mylonites ductile deformation T -P conditions

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LASER PROBE ^(40)Ar/ ^(39)Ar DATiNG OF MiCAS ON THE DEFORMED ROCKS FROM ALTYN FAULT AND iTS TECTONiC iMPLiCATiONS,WESTERN CHiNA

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地学前缘 2000年第S1期7卷 233-234页

作者： liu yongjiang\+1, ye huiwen\+1, ge xiaohong\+1, liu junlai\+1, pan hongxun\+1, Chen Wen\+2[WT5,5”BX](1 College of Earth Sciences, Changchun University of Science and Technology, Changchun 130061,China 2 Laboratory of isotopic Chronology, institute of

Recently, the Altyn strike\|slip fault in western China has become a hot topic to the research on continental dynamics of Tibetan Plateau. The chronological research is very important to constrain the age of tectono\|thermal event within Altyn fault belt. Many isotopic dating researches, related to the ophiolites, high\|pressure metamorphic rocks and some granitic rocks, have been done by Chinese and foreign geologists in the area. There, however, are only few isotopic dating researches on the syntectonic\|growing minerals within Altyn fault. We collected a sample of Caledonian mylonitized granite (At3a) in the north of Dangjin pass and two samples of Jurassic meta\|sedimentary rocks in Qaidam gate fault\|valley (At37c) and geshi fault\|valley (At30d). All the samples contain the syntectonic\|growing minerals such as white mica, chlorite, sericite and biotite etc. By dating these minerals, we can constrain the time of the tectonic events occurred in Altyn fault *** At3a, mylonitized granite, has been strongly deformed with undulating extinction of quartz. The plagioclase and quartz were elongated and surrounded by fine\|grained white micas and chlorites with strain shadow texture. These suggest that the sample has been suffered ductile deformation. The estimation of p\|T condition is 350℃, 180MPa. The isochronal age of (89.2±1.6)Ma has been obtained by laser probe 40 Ar/ 39 Ar dating analyses of six white mica grains.

关键词： Ar/ 39 Ar geochronology tectonic Altyn fault

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500 kV GiS隔离开关绝缘击穿典型故障分析

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高压电器 2020年第8期56卷 261-267页

作者：葛栋田阳田洪迅黄河高鑫淼国家电网有限公司北京100032 中国电力科学研究院有限公司北京100192

GiS设备在高电压等级骨干电网应用广泛,其可靠性直接影响大电网安全稳定运行。文中针对某变电站一起500 kV GiS隔离开关绝缘击穿故障进行深入分析。首先通过现场故障特征、理论仿真计算、返厂解体检查多手段对故障气室绝缘击穿进行全面... 详细信息

GiS设备在高电压等级骨干电网应用广泛,其可靠性直接影响大电网安全稳定运行。文中针对某变电站一起500 kV GiS隔离开关绝缘击穿故障进行深入分析。首先通过现场故障特征、理论仿真计算、返厂解体检查多手段对故障气室绝缘击穿进行全面分析。其次综合各种信息,采用理论与实际相结合,厂内溯源与试验验证相结合的分析方法,确认故障原因为隔离开关绝缘拉杆表面纤维起层,产生异物引起电场畸变,同时其绝缘裕度小,导致击穿放电。最后根据故障原因,提出针对此类故障后续应对措施。

关键词： GiS设备隔离开关绝缘击穿故障分析

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静脉输注右美托嘧啶抑制芬太尼引起的呛咳

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中国病案 2011年第5期12卷 63-64页

作者：袁宏勋顾科王保国首都医科大学第十一临床医学院北京三博脑科医院麻醉科北京市100093

目的观察预先输注右美托嘧啶能否抑制芬太尼引起的呛咳。方法 60例患者被随机分为右美托嘧啶组和安慰剂组,每组30例。右美托嘧啶组患者输注右美托嘧啶;安慰剂组输注生理盐水。在给予负荷剂量的药物后,静脉给予芬太尼。结果双盲观察记录... 详细信息

目的观察预先输注右美托嘧啶能否抑制芬太尼引起的呛咳。方法 60例患者被随机分为右美托嘧啶组和安慰剂组,每组30例。右美托嘧啶组患者输注右美托嘧啶;安慰剂组输注生理盐水。在给予负荷剂量的药物后,静脉给予芬太尼。结果双盲观察记录注射芬太尼后2分钟内患者出现呛咳,并评价呛咳的程度。右美托嘧啶组患者呛咳的发生率明显低于安慰剂组(23.3%对56.7%,P<0.01),患者发生呛咳的程度也低于安慰剂组。结论预先输注右美托嘧啶(1ug/kg)能够有效抑制芬太尼引起的呛咳。

关键词：右美托嘧啶芬太尼引起的呛咳

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船基系留气球AiS数据采集系统设计与实现

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计算机测量与控制 2023年第4期31卷 167-173页

作者：武宏勋黄宛宁苗景刚申戈中国科学院空天信息创新研究院北京100094 中国科学院大学航空宇航学院北京100049

船舶自动识别系统可以为发展高频地波雷达技术提供验证数据集;目前,现有手段为HFSWR提供的数据集存在实时性差以及仅能对小范围内的船只进行跟踪观测等缺点,针对该问题,设计了一套船基球载AiS数据采集系统,利用系留球搭载AiS接收机进行... 详细信息

船舶自动识别系统可以为发展高频地波雷达技术提供验证数据集;目前,现有手段为HFSWR提供的数据集存在实时性差以及仅能对小范围内的船只进行跟踪观测等缺点,针对该问题,设计了一套船基球载AiS数据采集系统,利用系留球搭载AiS接收机进行多次海上长时间驻空实验,期间获取了来自345条船只的270580条数据;结果表明:船基球载AiS接收机这一方式能够显著提高船只之间AiS信息的接收距离,当系留球锚泊在150 m高空时,系统的AiS信息接收距离能够达到244 km;并验证了AiS海上传播模型的准确性;船基球载AiS数据采集系统可实现长期高空驻留,所获取的周边海域船只的AiS信息数据范围广,实时性高,漏报率低,是对船基HFSWR性能进行评估的有效手段。

关键词：船舶自动识别系统船基系留气球通信距离高频地波雷达评估

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