阴极发光在古生物地层工作中的应用

APPLICATION OF CATHODOLUMINESCENCE TO PALEONTOLOGY AND STRATIGRAPHY

作者应用阴极发光对碳酸盐地层的划分和对比进行探索，结果表明：同一构造单元、同一沉积盆地中，时代相同的地层，阴极发光特征相似，可以运用阴极发光进行地层对比，而在不同构造带中，尽管碳酸盐地层时代相同，但阴极发光却不相同，不能用阴极发光进行对比。反之，已知时代相同，阴极发光却不相同的碳酸盐地层，可推断它们处于不同的构造环境之中。

he experiments of applying CL technique to paleontology and stratigraphy have been conducted. It is fascinating that the morphology and even inner structure of fossils, which were obscured by recrystallization of carbonate rocks, may leappear in CL.CL technique can be employed in stratigraphic division as in the same stratigraphic section. The characteristics of CL and the abundance of trace elements vary from stratum to stratum that have different ages, and especially CL sharply changes around the stratigraphic boundaries. CL technique can be used in stratigraphic correlation because of the similarity of both the characteristics of CL and the abundance of trace elements for the strata that have the same age and occuring in the same sedimentary basin and the same tectonic unit. It is not comparable, however in both CL and abundance of trace elements among the strata on different tectonic belts even they have the same age.