斜长石韵律环带的结晶速率方程及其动力学机制  

Crystalline Velocity Equation and Kinetics Mechanism of Plagioclase Oscillatory Zoning

作　　者：吴平霄[1,2] 吴金平[1,2] 李才伟 肖文丁[1,2] 

机构地区：[1]中国科学院广州地球化学研究所 [2]中国地质大学应用化学系

出　　处：《岩石学报》1998年第3期388-394,共7页Acta Petrologica Sinica

基　　金：国家自然科学基金

摘　　要：根据物理化学基本原理，建立了斜长石韵律环带形成的数学模型。从晶体生长的基本原理出发，提出了按非连续机制生长的斜长石晶体结晶速率表达式。该速率表达式具有过饱和→成核→耗尽循环的反馈特征。斜长石中小尺度韵律环带起因于自组织过程，而与环境因素无关。其成因对应着相对静态的环境。This study is based on the physical chemistry elementary principle to build the mathematics modal of the genesis of plagioclase oscillatory zoning. Based on the crystal growth elementary principle,a plagioclase crystalline velocity equation is suggested. This equation has the feedback property of Supersaturation→nucleation→depletion cycle. The small scale oscillatory zoning is formed through self organization with no relevance to the environmental factor. Its genesis is corresponding to the relative static environment.

关 键 词：斜长石 韵律环带 结晶速率方程 动力学机制 

分 类 号：P578.968[天文地球—矿物学]