分别收集具有典型性的桂西平果那豆矿田某潜井剖面内不同层次的孢粉样品,经鉴别分析,推测岩溶堆积型铝土矿形成过程中的古环境特点,得出以下结论:(1)桂西平果堆积型铝矿成矿过程中,古植被总体贫乏。(2)铝土矿堆积形成期出现过气候的异常变化或某些植物的生理特征性适宜在此地生长繁殖。(3)松属、蒿属、藜科等典型植物花粉的出现,体现出区内周围曾存在的低海拔地貌景观特征。
It has collected respectively spore- pollen sample in different layer inside some submersible well of typical Nadou mine field in Pingguo of the western part of Guangxi. By identification and analysis,it speculated palaeocnvironment characteristic in the process of forming karst aeeumulation -type bauxite, and the results shows that, ( 1 ) In the process of forming karst accumulation - type bauxite in Pingguo of the western part of Guangxi, palaeovcgeta- tion lacked as a whole ; (2) Because climate changed abnormally in the formation period of bauxite accumulation, or physiological characteristics of certain plant growth and reproduction would not be appropriate here;( 3 )The emergence of a typical plant pollen, such as Pinus, Artemiia and Chenopodiaceae plant pollens, reflected the surrounding area had been the existence of the characteristics of low- lying landscape.