摘要
我国沉积铝土矿石常具豆鲕构造,通过显微镜与扫描电镜观察,并进行电子探针及同位素等分析后,认为豆鲕粒复杂,成因也不单纯.主要形成于同生沉积阶段,其次为红土风化阶段,少数为成岩后生阶段所形成.还发现豆鲕的形态和分布特征与矿石质量好坏有关.
Sedimentary bauxite ores in China are often with pisolito-oolitic structure. Observations under microscope and scanning electron microscope, microprobe and isotopic analysis show their complexity, so is their genesis. Synsedimentary pisolites and oolites are dominant, then the lateritic ones and a few of them are dia-epigenetic. Quality of the sedimentary bauxite ore tends to be related to morphology of pisolites and oolites as well as their distribution.
出处
《地质找矿论丛》
CAS
CSCD
1990年第1期72-83,共12页
Contributions to Geology and Mineral Resources Research
