摘要
“准灰成分分析法”是以ＳｉＯ＿２─Ａｌ＿２Ｏ＿３、ＣａＯ─Ｍｇ及Ｆｅ＿２Ｏ＿３─ＳＯ＿３分别作为端元之一来进行聚煤环境分析的一种新方法。其原理是：据ＳｉＯ＿２─Ａｌ＿２Ｏ＿３端元特征，判断介质的总体搬运方向；由ＣａＯ─ＭｇＯ端元特征，判断聚煤环境受海水影响的强度；由Ｆｅ＿２Ｏ＿３─ＳＯ＿２端元特征，判断聚煤环境的氧化还原条件。该法用于研究河东煤田１０￣＃煤的聚煤环境，已取得了良好的效果。
The analysis method based on ash-composition, is a new method in coal-accumu-lating-environment.Principles of the method are:(1)According to the item SiO_2-Ai_2O_3,analyse the sort and content of clay mineral andland-source clast in advance to judge the main direction of transportation.(2) According to the item CaO-MgO, analyse the sort and content of Calcium-Magnesium mineral in coal in advance to judge the distance between coal-accumulating environment and the marine. (3)According to the item Fe_2O_3-SO_3,analyse the sort and content of iron mineral, in ad-vance to judge oxidation-reduction condition of coal-accumulating environment. The method was firstly put forward in 1988 early.It was applied in studying accumulating environment of oal No. 10 in Taiyuan Group,Herdong Coal Basin by'the writer, and had achived good result.
关键词
灰成分
煤田地质
聚煤环境
ash-composition of trance portation
distribution of environment
oxidation-reduc-tion condition
Herdong Coal Basin
