| 斜长石环带结构与相干结构 |
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| 引用本文： | 何安明.斜长石环带结构与相干结构[J].地球科学与环境学报,1989(4). |
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| 作者姓名： | 何安明 |
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| 作者单位： | 西安地质学院基础部 |
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| 摘 要： | 本文采用耗散结构理论,论述了斜长石环带结构的成因信息,提出了晶体生长的动力学数学模型,并指出外界能源的供给对晶体生长和构型有着重要的影响。讨论结果表明,当能量供给体系的速率超过某一临界阈值时,就会发生大范围的相干振动现象,它将引起水压等参数的周期性变化。这样,在斜长石的结晶过程中可以形成一种典型的相干结构—韵律型环带结构。
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| 关 键 词： | 斜长石 环带结构 耗散结构 |
THE ZONAI TEXTURE IN PLAGIOCLASE AND THE COHERENT STRUCTURES |
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| He Anming.THE ZONAI TEXTURE IN PLAGIOCLASE AND THE COHERENT STRUCTURES[J].Journal of Earth Sciences and Environment,1989(4). |
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| Authors: | He Anming |
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| Institution: | Xi'an College of Geology |
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| Abstract: | This paper discusses the genetic information about the zonal texture in plagioclase by using the theory of the dissipative structures and puts forward the kinetic mathematical model of the crystal growth. It also points out that the supply of external energy has an important effect on the crystal growth and the types of textures.The results of the discussion indicate that when the energy is supplied to the system at the rate beyond a certain threshold value, the phenomenon of the long range coherent oscillation occurs.This will cause the periodic changes of hydrostatics pressures and other parameters.So in the crystal growth process of plagioclase a typical coherent structure-the oscillatory zonal structure-is formed. |
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| Keywords: | plagioclase zonal texture dissipative structure |
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