砂岩是

sandstones───n.[岩]砂岩；沙岩

sandstone quarry───砂岩采石场

sandstone quarries───砂岩采石场

sandstone───n.[岩]砂岩；沙岩

bondstones───n.砌合之石；备用石

sandshoes───沙地鞋；沙靴

sandstorm───n.[气象]沙暴；大风沙

Well-sorted quartz sandstones are generally not very abundant.───分选良好的石英沙岩一般并不十分丰富。

Statistical results show that medium and fine-grained sandstones are the most favorable rock types for uranium mineralization.───统计结果表明，中、细粒砂岩是铀矿化最有利的岩石类型。

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。

Distributary channel and subaqueous distributary channel sandstones are the skeletal sand bodies.───分流河道和水下分流河道砂为储集层骨架砂体；

These sandstones are interpreted as having originally been point bar deposits.───这些砂岩在成因上被解释为点沙坝沉积。

the channel sandstones are as efficient reservoirs for its better reservoir quality , while the flood plain as the sealed beds.───河道砂体因物性好而成为有效储层，而泛滥平原则成为封盖和遮挡层。

Formations that transmit fluids readily, such as sandstones, are described as permeable and tend to have many large, well-connected pores.───易于透过流体的地层，如砂岩，被描述为可渗透的和倾向于有较大的，很好连通的孔隙。

The main types of clastic sandstones are feldspathic litharenite and lithic arkose in the Cretaceous of the Songliao basin.

Since the geneses of low resistivity gas zone with sandstones are complex in SU gas field, it is difficult to indentify the gas zone and water zone.

Normally tan to reddish sandstones are bleached.

As for the sealing conditions, the channel bar sandstones are not favourable as the channel sandstones and thus have relatively poor oil potential.

Diagenesis data indicate that the Silurian asphaltic sandstones are the products of multiple fillings of hydrocarbon.

A minor, but important constituent of many sandstones are the heavy minerals, with a specific gravity in excess of 2.9.