U-Pb Zircon Age, Geochemical and Sr-Nd Isotopic Constraints on the Age and Origin of the Granodiorit

来源 :地质学期刊(英文) | 被引量 : 0次 | 上传用户:excelong
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Post-collision felsic rocks in Southeastern Yunnan province contain granodiorites. U-Pb zircon ages, geochemical data and Sr-Nd isotopic data for these rocks are reported in the present paper. Laser ablation inductively coupled plasma mass spectrometry U-
其他文献
Landscape distribution, macroscopic, microscopic, mineral and geochemical characterizations were conducted on the Doumbouo-Fokoué bauxite ore deposit in or
本文探讨了降雨的空间分布和地形对流域等流时线的影响,提出了变动等流时线的新方法,该方法避免了传统等流时线假设流速在全流域均匀分布的缺陷,并且同时考虑了地形和降雨空间分
In this article, seepage phenomena through the karstic limestone foundation of Behesht Abad dam are investigated. In order to get a state of seepage and determi
Serious shaft lining ruptures have often occurred in the eastern part of China since 1987 due to the complicated geological conditions. This paper tries to find
根据儿童癔症的特点,制定相应的护理措施,采取恰当的心理护理和暗示疗法,对32例癔症患儿进行护理,对促进该病迅速康复有明显效果,提示暗示疗法和心理护理的重要性。同时,对家长的健
10月10日-11日,国家发改委副主任宁吉喆在沈阳主持召开推进重大外资项目现场会.会议研究部署了创造更加便利投资环境、支持重大外资项目落地的具体措施.参会代表实地调研了中
目的:探讨儿童腹型癫痫的临床、疗效、与脑电图的相关因素.方法:对64例临床诊断为本症的脑电图、临床特点及治疗情况进行分析.结果:64例脑电图中,异常53例(82.8%).经治疗观察
我们知道,声音是当物体振动时,通过空气的媒介传入耳内的。如我们在演奏小提琴时,弓子拉弦,这种磨擦就产生了弦的振动而引起周围空气的波动,称为振波,这种振波是以每秒1000英
In Southwestern China, karst covers an area of 540,000 km2, and supports a population of approximately 100 million people. This groundwater can easily become hi
声乐教学也是个创作。这是我从事高教工作数十年的一点感受。学生入学,在某种意义上说,就像是一块待塑的材料。声乐教师好比是一位雕刻家,要在这上面精心雕塑出一件艺术品。