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近数十年来,数学地质作为一门新兴的学科得到了飞速的发展.实践证明,对地质数据进行一定的数字处理,以寻求地质现象的宏观规律,无论在地质研究或找矿实践中都是有深远意义的.但是,这种应用在不同领域是不平衡的.迄今为止,利用岩比关系分析砂矿成矿母岩条件的工作还没有开展过.我们这次在山东半岛滨海砂矿成矿远景区划中就这一问题进行了探索,作为一种尝试,问题还很多,愿稍作介绍,就教于同行专家.砂矿母岩岩比图是根据一般相三角图的基本原理,对区域母岩组合的空间规律进行归纳的一种图件,其意义在于赋予区内各类岩石组合的出露面积以量的概念.据岩组的面积比值分成若干个不同的岩比区,通过已知砂矿所在的岩比区,推断在同类比值区中可能形成的同类砂矿床,从而达到成矿远景区预测之目的.作为成矿母岩条件的基础图件,它既能定性地反映母岩空间分布上的变化趋势,又能定量地反映母岩组合的分布面积.而对岩体而言,其分布面积,既包含着岩体规模的信息,又包含着岩体剥蚀深度的信息,这与砂矿的形成都是密切相关的.
In recent decades, mathematical geology as a new discipline has been rapid development.Practice has proved that the digital processing of geological data to seek the macro laws of geological phenomena, both in geological research or prospecting practice are But this application is not balanced in different fields.So far, the use of rock ratio analysis of sandstone metallogenic rock conditions have not been carried out.We this time in Shandong Peninsula coastal sand into As a trial, the problem is still a lot of, would like to make a brief introduction, to teach in the peer expert.Graphite parent rock ratio map is based on the general phase diagram of the basic principles of triangulation, the region The main purpose of this paper is to summarize the spatial regularities of the parent rock assemblages. The significance of this concept is to give the concept of the exposed area of various rock assemblages in the area. According to the area ratios of the rock groups, they are divided into several different rock ratio zones, Knowing the rocky area where the sandsite is located, it is possible to deduce the similar sand deposits that may be formed in the same ratio area, so as to achieve the purpose of prognosis in the ore prospecting area. The variation trend of the spatial distribution of the Yingmu rock and the quantitative distribution of the distribution of the parent rock assemblage, while the distribution area of the rock mass includes both the information of the rock mass size and the depth of denudation of the rock mass Information, which is closely related to the formation of sand ores.