sandstones信息详情
n.[岩]砂岩；沙岩
sandstone───n.[岩]砂岩；沙岩
bondstones───n.砌合之石；备用石
sandshoes───沙地鞋；沙靴
sandstorms───n.沙尘暴（sandstorm的复数）
Caen stones───米黄色石灰岩；[建]波纹奶色石灰石
grindstones───n.磨石
slingstones───吊带石
snakestones───n.菊石；吸蛇毒石（snakestone的复数）；菊石类
stinkstones───n.臭石，臭石灰岩
Sandstones generally make good aquifers, while finer-grained mudstones are typically impermeable.───砂岩通常是良好的含水层，而细粒泥岩通常是不透水的。
Because they are porous, sedimentary rocks, such as sandstones and conglomerates, are important potential sources of groundwater.───由于像如砂岩和砾岩这样的沉积岩是多孔的，它们是地下水的重要潜在来源。
It intruded Eocene sandstones.───它侵入始新世砂岩。
These gas sandstones have better anomaly pattern only when the gas volume has been up to a given size, due to their low acoustic impedance.───研究区含气砂岩具有低阻抗特征，只有当含气量达到一定规模时才有较好的异常显示。
Sandstones of shallow water delta facies are the material base for the formation of these tight reservoirs.───结论认为：浅水三角洲砂岩是这些致密砂岩储层的物质基础；
The sandstones in second and fourth members of Xiangxi Formation of the Upper Triassic are the main natural gas reservoirs in Sichuan Basin.───四川盆地上三叠统香溪组二、四段砂岩是盆地内主要天然气储层之一，近年来勘探形势喜人。
The equipment for filtering through the sandstones is a pipe-trough type filter, and a sandstone filter layer is arranged in the filter.───所说的砂石过滤所用的设备，是一种管槽状的过滤器，过滤器里面设有砂石过滤层。
Coal is usually found associated with sandstones, carbonaceous siltites and coal seams.───通常找到煤炭伴生与砂岩、碳质的硅和煤层。
The main diagenesis types of sandstones are the mechanical compression, cementation and dissolution.───砂岩主要的成岩作用包括机械压实作用、胶结作用、溶蚀溶解作用。
Thus, in immature sandstones and carbonates, clay minerals may become concentrated along a seam.
Such rocks are said to be permeable; sandstones and gravels are good examples of permeable rocks.
This indicates the sandstones can be over 30 m thick and are separated by well-defined shale beds.
Till-covered plain Derived from gneisses, sandstones and conglomerates the extensive glacial tills in Lewis have sandy loam textures.
Provenance work on the turbidite sandstones has indicated at least two sources for heavy minerals.
The turbidite sandstones further south, represented by the Bude and Crackington Formations in Devon, appear less promising.
Porous sandstones near the top of the Sherwood Sandstone occur beneath thick impervious halite horizons in the Mercia Mudstone.
Such massifs are the ultimate source of sandstones in the United Kingdom.
A minor, but important constituent of many sandstones are the heavy minerals, with a specific gravity in excess of 2.9.