Abbr.Meaning Ca Calcium Medical, Chemistry, Chemical Element PE Potential Energy Chemistry, Medical, Science Db Dubnium Chemical Element, Chemistry, Metal DTT Dithiothreitol Medical, Biochemistry, Chemistry Ni Nickel Chemistry, Chemical Element, Medical Pt Platinum Chemical Element, Chemistry, Medical DCS ...
But back to the ionosphere and the O+ ion. As I indicated, its recombination with electrons goes very slowly, meaning that it could undergo other, more likely processes. To make a long story quite short, an ion-atom interchange can take place in nitrogen molecules with oxygen ion displacing...
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control. Although methods and material...
mineral chemistry / A-type granite / extensional setting 0. 引言 都庞岭岩体位于南岭西段湘桂交界的江永县、道县及广西灌阳县境内,面积约270 km2。据近年来获得的同位素年龄值及花岗岩间接触关系,都庞岭岩体主体于印支期侵位,为加里东期、印支期花岗岩组成的复式岩体,岩体中发育有少量的燕山期岩株。都庞岭岩体...
High Sr/Y and La/Yb ratios: the meaning of the adakitic signature Lithos, 112 (2009), pp. 556-574 View PDFView articleGoogle Scholar Pearce, 1996 J.A. Pearce Sources and settings of granitic rocks Episodes, 19 (1996), pp. 120-125 Google Scholar Pearce and Peate, 1995 J.A. Pearce...
The most important difference between the values obtained from HF and DFT computations concerns the charge transfer contribution, which, in most cases, undergoes the largest increase. The physical meaning of these results is discussed. The present work gives reference calculations that might be used ...
48ca.750Ma花岗岩浆作用Plumeheadeffec扬子板块北缘新元古代岩浆活动锆石U-Pb年龄主要集中在700~800Ma,岩浆活动峰期约在750Ma。锆石氧同位素比值范围-11‰~+9‰,大多数锆石18O值低于地幔锆石值,大约一半为负18O值。新元古代高温热液蚀变,蚀变岩石部分熔融形成低18O岩浆。与超大陆裂解和地幔超柱事件有关Zhengetal....
Geochemistry and tectonic setting of Permian volcanic rocks in Yingen-Ejin Banner basin and its neighboring areas, western Inner Mongolia. Geol. Bull. China 30 (6), 923–931. [31] Ducea, M.N., Saleeby, J.B., Bergantz, G., 2015. The architecture, chemistry, and evolution of ...
华南新元古代花岗岩锆石Hf和O同位素地球化学:地幔柱头效应?郑永飞吴元保张少兵赵子福 中国科学技术大学地球和空间科学学院 徐平吴福元 中国科学院地质与地球物理研究所 李献华 中国科学院广州地球化学研究所 李正祥 西澳大学地质与地理系构造研究中心 1 科学问题 华南新元古代花岗岩成因?裂谷vs地幔柱vs岛弧地幔柱岩浆与...
Preparation of VO-Ru/HfO2-OP was conducted in two continuous steps. First, a modified polyol process with oleylamine and polyvinyl pyrrolidone as structure-directing agents was employed to prepare pristine Ru/HfO2-OP. Second, VOwas introduced by annealing under a H2/Ar atmosphere. The primary cry...