元素早期成岩作用的数学模式

MATHEMATICAL MODELS OF ELEMENTAL EARLY DIAGENESIS

论述了近十几年发展起来的元素早期成岩作用数学模式的研究概况,对早期成岩的几类典型反应,即:有机质的降解(分解)反应,溶解组份的吸附(或离子交换)、矿物的溶解及溶解组份的自生矿物沉淀等作用作了阐述。重点介绍了早期成岩作用的“扩散—平流—反应”数学模式及其具体应用。

A summary on mathematical models of elemental early diagenesis in recent more than ten years was given in this paper.Several typical reactions of early diagenesis were described with the focus on the introduction of mathematical model of 'Diffusion-Advection-Reaction' in elemental early diagenesis.The practical application of this model to early diagenesis of phosphate,silicate,halogens (F~,Br~) and sulfate in sediments and interstitial waters was disscussed in detail.It was concluded that mathematical models has had an important role in the research of early diagenetic processes.