论文部分内容阅读
在我国湖盆中燧石是一种非常罕见的岩石类型，到目前为止，国内尚没有人对湖相地层中的燧石作专门研究报道。本文首次提出在辽河西部凹陷下第三系湖相地层中存在着纹层状燧石，并从地质背景条件、沉积和地球化学特征入手，对其成因机制作了初步的探讨。
Flint is a very rare type of rock in the lake basin of our country. So far, no domestic research on flint in lacustrine formation has been reported. This paper presents for the first time that there are laminar chert chests in the Lower Paleogene lacustrine strata in the western Liaohe depression. Based on the geological background, sedimentary and geochemical characteristics, the genesis mechanism is discussed.