The present unconformity system is resulted from paleoweathering zone undergoing weathering, eluviations and transgression in geological age. The vertical texture existed in the both systems.
现今不整合体系的形成与地质历史时期地层所受的风化、剥蚀和大气水淋滤作用及后期的水进沉积作用关系密切。
The advantage of this system is that it is very simple, inexpensive and almost immune to weathering.
匙系统的优点是使用简单，成本低廉，不怕日晒雨淋。
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