“岩浆期后矿床”的成矿原理与环形构造成矿

MINERALIZATION PRINCIPLE OF POST-MAGMATIC MINERAL DEPOSIT AND METALLOGENIC MECHANISM OF RING-SHAPED STRUCTUTES

本文应用数学物理的方法对“岩浆期后矿床”的成矿原理和环形构造的控矿机制进行了研究，得出：“岩浆期后矿床”的成矿原理是：成矿物质是以早期气态分离的形式贮存于岩浆源顶部，“岩浆期后矿床”是由早期气态物质上升到地表后汇集而成；环形构造控制“岩浆期后矿床”，但是并不是所有环形构造都控制“岩浆期后矿床的形成，只有那些与早期气态物质上升高度相当的截面并由早期气态物质爆破形成的环形构造才有可能控制“岩浆期后矿床”的形成。

This paper deals with some model and possibility of enriching mineralization of metallogenic material of post-magmatic mineral deposit in process of magmatic action with the method of mathematics and physics, such as crystal separation, swelling separation, gaseous state separation. This research deduces the following conclusions: ①The forming process of post-magmatic mineral deposit is that the material of mineralization separated from the magma in the way of gaseous state and enriched on the juvenile top. It is the mineralization principle of post-magmatic mineral deposits. ②The post-magmatic mineral deposites must form in the ring-shaped structures, but not all ring-shaped structures could control ore deposit. Only in those ring-shaped structures which form metallogenic gaseous material blasting, simultaneously, in which the rising height of metallogenic material is equal to the height difference between the magmatic source top and the crust surface, the post-magmatic mineral deposit can be found hopefully.