1、

Chert with good abrasion the major content in conglomerate and diamonds are contained in it generally.

砾岩主要砾石成分为燧石,磨圆度较好,普遍含金刚石.

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2、

The thin bedded 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.

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3、

The sediments in this photo curve near the ends of chert pods.

这沉淀物在这幅图片的曲线近似冷凝物的黑矽石的扁豆形矿体.

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4、

Paleontologists know chert as a good place to look for fossils.

古生物学者知道黑矽石同样的好地方去观看化石.

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5、

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.

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6、

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.

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7、

The cardium sandstone is lithic, being composed of grains of chert, quartz, quartzite, silicified argillite, and other rock fragments.

卡迪砂岩是岩屑砂岩,由燧石,石英、石英岩、硅化泥板岩和其它岩石碎屑颗粒所组成。

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8、

The latter consisting of dark gray clastic limestone, chert beds, siliceous mudstone and massive reef and usually with graded bedding.

石灰岩建造常为黑色、灰黑色碎屑石灰岩、燧石层、粉砂质泥板岩和礁灰岩组成,常夹递变层理。

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