Then something strange happened: the loess in the terraces wasn't on top of crushed rock anymore - it was on top of very finely laminatedclay-rich sediments.
然后一些很奇怪的事儿发生了：梯田里的黄土不再在碎岩石上-在非常完美层压的黏土丰富的沉积物上。
2
The high-quality source rocks of the lower formation of Es_3, usually with laminated structure, are primarily composed of carbonate laminas and clay laminas with rich organic matter.