鸟眼构造 meaning in Chinese

birdeye structure
birds eye structure

However , the authors discovered recently that the top and bottom surfaces of the loushanguan formation are palaeokarst unconformity interfaces , and there are a lot of interbeds of granular ( oolite , pisolite and oncolite ) dolomite and algae - mat dolomite , especially sedimentary structures such as the bird ? s eye , stromatolite , cross bedding and tepee structures
但笔者新近研究发现，其顶、底均为古岩溶不整合面，并有大量颗粒(鲕、豆、核形石)白云岩和藻纹层白云岩夹层，还有许多鸟眼构造、叠层石构造、交错层理、帐蓬构造存在。