1) sand streak
簿砂岩夹层
3) sand streak
薄砂岩夹层
4) Jiaguan sandstone
夹关砂岩
1.
There is a set of red Jiaguan sandstone of cretaceous in front-zones of Mountains in west Sichuan,and many scenery spots in circular tour route in west Sichuan have some relations with this kind of stone,such as Leshan Grand Buddha,Zhougong Mountain,Higashiaya stone inscription,and Mengding Mountain.
川西的山前地带分布一套白垩系的紫红色夹关砂岩,川西旅游环线里许多旅游景点与该类砂岩有关。
5) sand interlayer
砂质夹层
1.
Simulated soil column experiments were done to study the mechanisms of water reserved by sand interlayer in the profile.
探讨土壤剖面中砂质夹层的水分行为，试验采用模拟土柱进行研究。
补充资料：粉砂岩
| 粉砂岩 siltstone 由粒径为0.0625～0.0039毫米（mm）的粉砂的含量占50％以粉砂岩标本的一种碎屑沉积岩。除粉砂以外其它由砂、粘土或化学沉淀物组成。按粒度划分为粗粉砂岩（0.0625～0.0312mm）和细粉砂岩（0.0312～0.0039mm）。按碎屑成分划分为石英粉砂岩、长石粉砂岩、岩屑粉砂岩（少见）和它们间的过渡类型。根据胶结物成分划分为粘土质粉砂岩、铁质粉砂岩、钙质粉砂岩和白云质粉砂岩。黄土也是一种疏松的或半固结的粉砂质沉积物。粉砂岩多形成于河漫滩、三角洲、潟湖和海洋的较深水部位。
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参考词条