The Helegangnaren feldspar granite exposed in the eastern part of East Kunlun, is characterized by high concentrations of SiO2 and alkaline, low abundances of Fe, Mg and Ca, metaluminous-weak peraluminous. Trace eleme...The Helegangnaren feldspar granite exposed in the eastern part of East Kunlun, is characterized by high concentrations of SiO2 and alkaline, low abundances of Fe, Mg and Ca, metaluminous-weak peraluminous. Trace elements analysis shows that the granite is depleted extremely in Ba, Sr and Eu, and rich in some large-ion lithophile elements and high field strength elements. Besides, the granite has high Ga contents, the values of 104（Ga/AI） vary from 2.50 to 2.77, which is mainly greater than the lower limit of A-type granites （2.6）, and is higher than the I- and S- type granites＇ average （2.1 and 2.28, respectively）. Rare earth element （REE） is characterized by relatively high fractionations of light REE （LREE） and heavy REE （HREE） （LREE/HREE=9.3-13.60, （La/Yb）N=10.92-18.02）, pronounced negative Eu anomalies （JEn=0.08-0.13）, and exhibits right- dipping gull pattern. Major elements, rare elements and trace elements features show the granite is ascribed to A-type granite and A2 subtype in tectonic genetic type. They are plotted into post-collision or within-plate area in a variety of tectonic discriminations. Geological and geochemical data comprehensively suggest that the granite is formed in a post-collision extensive tectonic setting. Laser ablation inductively coupled plasma mass spectrometry （LA-ICP-MS） zircon U-Pb dating yields a weighted mean age of 425 Ma, belonging to Middle Silurian, which is similar to the age of the post- collision geological events in the region. The differences of magmatic rocks in formation age, rocks assemblage and rocks series systematically indicate that the regional tectonic stress regime in the East Kunlun orogenic belt experienced a major transformation from compress to extension in Middle Silurianin, and the Helegangnaren feldspar granite intruded in the early stage of tectonic transformation.展开更多
为实现温室环境信息高效监测,开发了物联网测控管理系统的通用平台,主要包括基于Android的智能网关以及基于Google Web Toolkit的远程Web服务器,并制定了系统的数据同步通信协议。根据数据采集单元配置信息和预先设定的界面显示风格,智...为实现温室环境信息高效监测,开发了物联网测控管理系统的通用平台,主要包括基于Android的智能网关以及基于Google Web Toolkit的远程Web服务器,并制定了系统的数据同步通信协议。根据数据采集单元配置信息和预先设定的界面显示风格,智能网关和Web服务器的应用程序能够自适应地生成温室环境监测界面,动态地解析监测传感器数据并实现数据库存储,以Http post网络传输机制实现数据采集单元配置信息、监测传感器数值等数据在二者间的同步。试验结果表明温室物联网系统在实际应用中具有较高的稳定性,有效地避免了由于传感器和数据采集单元节点变更导致Web服务器和智能网关应用程序的二次开发。展开更多
基金financially supported by National Natural Science Foundation of China (Grant Nos. 41172186, 40972136 and 40572121)Special Fund for Basic Scientific Research of Central Colleges, Chang’an University, China (Grant Nos.CHD2011TD020, CHD2009JC070, CHD2009JC053 and CHD2009JC046)the Commonweal Geological Survey,the Aluminum Corporation of China and the Land-Resources Department of Qinghai Province (Grant No.200801)
文摘The Helegangnaren feldspar granite exposed in the eastern part of East Kunlun, is characterized by high concentrations of SiO2 and alkaline, low abundances of Fe, Mg and Ca, metaluminous-weak peraluminous. Trace elements analysis shows that the granite is depleted extremely in Ba, Sr and Eu, and rich in some large-ion lithophile elements and high field strength elements. Besides, the granite has high Ga contents, the values of 104（Ga/AI） vary from 2.50 to 2.77, which is mainly greater than the lower limit of A-type granites （2.6）, and is higher than the I- and S- type granites＇ average （2.1 and 2.28, respectively）. Rare earth element （REE） is characterized by relatively high fractionations of light REE （LREE） and heavy REE （HREE） （LREE/HREE=9.3-13.60, （La/Yb）N=10.92-18.02）, pronounced negative Eu anomalies （JEn=0.08-0.13）, and exhibits right- dipping gull pattern. Major elements, rare elements and trace elements features show the granite is ascribed to A-type granite and A2 subtype in tectonic genetic type. They are plotted into post-collision or within-plate area in a variety of tectonic discriminations. Geological and geochemical data comprehensively suggest that the granite is formed in a post-collision extensive tectonic setting. Laser ablation inductively coupled plasma mass spectrometry （LA-ICP-MS） zircon U-Pb dating yields a weighted mean age of 425 Ma, belonging to Middle Silurian, which is similar to the age of the post- collision geological events in the region. The differences of magmatic rocks in formation age, rocks assemblage and rocks series systematically indicate that the regional tectonic stress regime in the East Kunlun orogenic belt experienced a major transformation from compress to extension in Middle Silurianin, and the Helegangnaren feldspar granite intruded in the early stage of tectonic transformation.
文摘为实现温室环境信息高效监测,开发了物联网测控管理系统的通用平台,主要包括基于Android的智能网关以及基于Google Web Toolkit的远程Web服务器,并制定了系统的数据同步通信协议。根据数据采集单元配置信息和预先设定的界面显示风格,智能网关和Web服务器的应用程序能够自适应地生成温室环境监测界面,动态地解析监测传感器数据并实现数据库存储,以Http post网络传输机制实现数据采集单元配置信息、监测传感器数值等数据在二者间的同步。试验结果表明温室物联网系统在实际应用中具有较高的稳定性,有效地避免了由于传感器和数据采集单元节点变更导致Web服务器和智能网关应用程序的二次开发。
