air deposited clay

The observation of core and micro research of mineral and element show that the unconformity structures in Jiyang Depression can be divided into three parts of weathered clay,semi-weathered rocks and un-weathered rocks.

对济阳坳陷不整合取心井的岩心观察以及矿物、元素的微观研究表明,济阳坳陷完整的地层不整合包括风化黏土层、半风化岩石和未风化岩石3部分。