2) standstone uranium geological samples
砂岩铀矿地质样品
3) intermittent cracked sandstone samples
非贯通裂隙砂岩样
4) sand specimen
砂样
1.
squeeze ,ramming and impect compacting on the mechanical propertie of moulding sands was investigated,Tests show that,the strength of sand specimens(tensile ,shear and compressive strength)is differentalthogh the weight of standard specimens is kept equal.
用三种不同的紧实方法（压实、锤击及冲击紧实）制标准试样（），然后用型砂强度试验机测定其抗压、抗剪及抗拉强度，求得不同紧实方法对砂样强度的影响，试验表明，标准试样重相同，但紧实方法不同所得强度测试值并不相同，文章分析了其强度值不同的原因及有关现象。
5) sandstone
[英]['sændstəʊn] [美]['sænd'ston]
砂岩
1.
Study on Perforation Effectiveness of Shaped Charges in Different Sandstones;
聚能射孔弹在不同砂岩上的射孔效果研究
2.
Mechanisms and significance of microfractures generated by microwave heating in sandstone reservoirs;
砂岩储集层微波加热产生微裂缝的机理及意义
3.
The Influences of Deep In-Situ Stress Field on Mechanical Properties of Sandstone;
深部地应力环境对砂岩力学性质的影响
6) sandstones
砂岩
1.
Origin of high-quality reservoirs of the second and fourth member sandstones, Xujiahe Formation, upper Triassic in the center of Sichuan Basin;
川中地区上三叠统须家河组二段和四段砂岩优质储层成因探讨
2.
Sedimentation and diagenesis characters of the sandstones in the upper Shihezi Formation in Boshan area;
博山地区上石盒子组露头砂岩沉积成岩特征
3.
U-Pb zircon dating data for samples of the mafic and acidic rocks as well as sandstones hosted in the Neoproterozoic basement strata in the western Jiangnan orogen reveal that deposition of the terrigenous fragments in the island-arc area took place between 872 Ma and 835 Ma.
基底地层中砂岩的碎屑锆石及夹层中基性—酸性火山岩的锆石U-Pb定年表明,在扬子板块东南缘,新元古代岛弧岩浆活动的时间约为878～822Ma,岛弧地区陆源碎屑的沉积作用发生在872～835Ma期间,表明存在同时代的(coeval)"岛弧岩浆作用"和"沉积作用"。
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。
|
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条