层状岩体的典型特征是其具有层状构造和韵律结构。
Layered intrusions are characterized by a typical layering structure and rhythmic texture.
而化石沉积物中特有的层状构造，则显示沉积泥沙的水流不再往北，而改向东流。
And distinctive layered patterns in the fossilized sediments indicated that the water that deposited them was no longer flowing north; instead it flowed eastward.
水下喷发火山岩典型标志为珍珠岩、玻璃质结构、枕状构造、纹层状凝灰岩和膨润土。
Typical features of subaqueous volcanic rocks include perlite with glassy structure and pillow structure, lamellar tuff, bentonite.
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