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。
Because they are porous, sedimentary rocks, such as sandstones and conglomerates, are important potential sources of groundwater.
适用于中至中硬地层中使用，如砂岩、石灰岩及白云岩。
Suitable for medium to medium hard formations such as sandstone, limestone and dolomite.
适用范围：用于一般毛细空较大的石材，如砂岩和白沙米黄等。
Application: used for general capillary empty large stone, such as sandstone and white sands cream-colored, etc.
沉积岩（如砂岩和砾岩）内较大颗粒之间或较大颗粒埋于其中的较细填隙颗粒。
The finer grained, interstitial particles that lie between larger particles or in which larger particles are embedded in sedimentary rocks such as sandstones and conglomerates.
所以在附近就必须具有透水的储存岩石，如砂岩和具孔隙的石灰岩，为石油和天然气提供通道和贮存场所。
And there must be a permeable reservoir rock, such As sandstone or porous limestone, to provide pAssage and storage for the oil and gAs.
高抗压强度的中硬地层，如硬页岩。石灰岩。砂岩。白云岩。和硬石膏。大理石。
Medium hard formation with high compressive strength. Such as hard shale, limestone, sandstone, dolomite, anhydrite and marble.
低抗压强度的软到中等地层，如中软页岩。中软石灰岩。中软砂岩。和软硬研磨性夹层的中等地层。
Low compressive strength of soft to medium formations. Such as soft shale, soft limestone, soft sandstone, hard and soft abrasive interbedded medium formation.
高抗压强度的硬地层，如硬石灰岩。燧岩。硬砂岩。石英岩。石英砂。玄武岩。花岗岩等极硬岩层。
Medium hard formation with high compressive strength. Such as limestone, taconite, blaize, quartzite, silica sand, basalt, granite ect.
两种砂岩体在表面上有相似性，如它们都是河流沉积的狭窄的线状砂体。
Both sand bodies may have superficial resemblances in that both are narrow, linear, and deposited by a river.
砂岩中含少量的重矿物，如锆石、石榴石、电气石、十字石等。
The sandstone contains lesser amount of heavy minerals such as zircon, garnet, tourmaline, and staurolite.
一只状如镰刀的精灵箭一般地飞向烟囱岩。烟囱岩是两截尖锥形砂岩，如帽子形状盖在一个狭长的岩石台基上。
A sickle-shaped creature was darting toward Chimney Rock, two sandstone pinnacles that cap a long, narrow rock platform.
不渗透的地层如页岩与粉砂岩。因颗粒很细或粗细颗粒混杂。只有较小，较少连通不好的孔隙。
Impermeable formations, such as shales and siltstones, tend to be finer grained or of a mixed grain size, with smaller, fewer, or less interconnected pores.
石榴角闪岩的原岩既可以是基性岩，如玄武岩或辉长岩，也可以是沉积岩如杂砂岩。
The protoliths of the garnet amphibolite can be either basic magmatic rocks, such as basalt and gabbro, or sedimentary rocks, like greywacke.
石榴角闪岩的原岩既可以是基性岩，如玄武岩或辉长岩，也可以是沉积岩如杂砂岩。
The protoliths of the garnet amphibolite can be either basic magmatic rocks, such as basalt and gabbro, or sedimentary rocks, like greywacke.
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