Thus we can better understand the deformation of chert in a highly fluid form . 这样我们就能更好地理解燧石在高度流体状态时的变形情况。
2.
Carbonate rocks are predominantly composed of intra - clastic dolostone , chert dolostone and sand - bearing dolostone 碳酸盐岩以内碎屑白云岩、燧石白云儿和含砂白云岩为主。
3.
The thin - beded siliceous - rocks include chert and depositional quartz with textures of oolite and pebble 矽质岩包括燧石和沈积石英岩，呈薄层状产出，沈积石英岩具鲕状、砾状结构。
4.
Geochemical characteristics and paleogeographic significance of early carboniferous cherts at the nongba section in the gengma area , southwestern yunnan 滇西南耿马地区弄巴剖面早石炭世硅质岩的地球化学特征及古地理意义
5.
The bulk of the artifacts from liang bua are simple flake tools struck from volcanic rock and chert , no more advanced than the implements made by late australopithecines and early homo 梁布亚出土的石器，大部份是以火山岩与燧石打制的简单石片器，并不比晚期南猿人与早期人属物种制作的石器先进。
6.
The feldspar of the reservoir sandstone in the study area consists of a higher percentage of na feldspar that of k . feldspar . the sandstone is composed of certain little rock fragments such as pyrite , mica , siltstone , mudstone , chert , and volcanic fragments 砂岩内长石由钠长石与钾长石组成，以钠长石为主；岩屑由黄铁矿、云母、粉砂质、泥质、燧石与火山岩屑构成。
7.
The lower part formed in a littoral - epeiric environment , is a series of elastic rocks , partly contains carbonate rock and metamorphic basic volcanic rocks and the upper part formed in a bathypelagic environment is a series of sediments with chert , partly contains metamorphic basic volcanic rocks 其下部为一套滨浅相碎屑岩，局部夹碳酸盐岩、变质基性火山岩；上部为一套深水沉积岩系夹硅质岩，局部夹变质基性火山岩。
