Origins of Igneous Layering

研究的目的是利用数值 结晶过程的模型，以进一步了解 火成岩分层的起源 重点 关于称为晶体老化的后成核过程（Ostwald 成熟），可以引起细规模分层作为一个 与溶解作用有关的韵律性长程有序的结果 小晶体和大晶体的生长。 的 这项研究的结果应该增加对以下问题的了解： 层状镁铁质、超镁铁质岩石成因及成因 侵入体是铂族元素的主要来源 元素

The objective of the proposed research is to use numerical models of crystallization processes to further understand the origins of layering in igneous rocks. The emphasis is on a post-nucleation process termed crystal aging (Ostwald ripening) that can give rise to fine-scale layering as a result of rhythmic long-range order related to dissolution of small crystals and growth of larger crystals. The results of this research should increase understanding of the petrogenesis and origin of layered mafic and ultramafic intrusions, which are the major source of the platinum group elements.