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。
Although most fossils are found in marine sedimentary rocks, they also are found in terrestrial deposits left by streams and lakes.
虽然大多数化石是在海洋沉积岩中发现的，但它们也存在于河流和湖泊所留下的陆地沉积物中。
In this process, sedimentary rocks that originally formed on the seabed may be folded upwards to altitudes of more than 26,000 feet.
在这个过程中，最初形成于海床上的沉积岩可能会向上折叠到26000英尺以上的高度。
The sedimentary rocks are graywacke, siltstone, tuff andpellitie, etc.
沉积岩有杂砂岩、粉砂岩、凝灰岩、泥质岩等。
It immediately spotted outcrops of layered sedimentary rocks, the first ever seen on Mars.
它立即发现数个沉积岩的层状露头，这是在火星上首见。
Classification of sedimentary rocks.
沉积岩的分类。
These folded rocks look like sedimentary rocks.
这些发生褶皱的岩石看起来像是沉积岩。
Are there any further divisions for sedimentary rocks?
对于沉积岩还有进一步的划分吗？
An anisotropic model of sedimentary rocks is presented.
给出了沉积岩的一种各向异性模型。
Low-lying areas tend to be formed of granite or sedimentary rocks.
低洼地区大致上由花岗岩及沉积岩组成。
Key points: texture, structure and classification of sedimentary rocks.
重点：沉积岩的结构、构造和分类。
There are primary stylolite and secondary stylolite in sedimentary rocks.
沉积岩中的缝合线构造有原生和次生两种成因。
The results indicate that the composition of post_Archaean sedimentary rocks of NCC is not uniform.
结果表明，华北克拉通后太古宙沉积岩组成并不均一。
The results indicate that the composition of post _ Archaean sedimentary rocks of NCC is not uniform.
结果表明，华北克拉通后太古宙沉积岩组成并不均一。
As an important tracer, REE is widely used to trace provenance of various sediments and sedimentary rocks.
REE作为一种重要的沉积物物源示踪剂运用很广。
The Pb isotopic composition of the ore is similar to that of Mesozoic_Cenozoic sedimentary rocks in this basin.
矿石与盆地的中新生界沉积岩系的铅同位素组成相似。
The ultrabasic rocks form a complex of large tectonic slices with intercalated slices of Sebakwian sedimentary rocks.
超基性岩与塞巴奎沉积岩岩片相间构成一巨大的构造岩片的杂岩体。
The VTI media is caused by fine periodic thin layers, and it is one of most sedimentary rocks researched by geophysicists.
由周期性薄互层引起的VTI介质是研究比较广泛的一类各向异性介质。
The upper part of it is a suit of metamorphic flysch formation, and the lower part, metamorphic volcanic-sedimentary rocks.
其上部为一套变质的复理石建造，下部为变质的火山-沉积岩建造。
In summary, Mesozoic seafacies sedimentary rocks in the Ancient South China Sea Basin have a very good exploration potential.
由此可见，南海盆地中生代海相沉积岩具有较好的勘探潜力。
According to this theory, subsidence of sedimentary rocks is accompanied by the formation of fluid-saturated zones of dilatation.
按照这一理论，沉积岩的沉降伴随有扩张的流体饱和带的形成。
But even in the sedimentary rocks only a tiny fraction of prehistoric plants and animals have left any record of their existence.
但即使是在沉积岩石中，史前的植物和动物也只是留下了它们很少一部分遗迹。
Gravels components from the Cenozoic strata are mainly composed of metamorphic rocks and sedimentary rocks with little magmatic rocks.
新生代地层中砾岩砾石成分稳定，以变质岩和沉积岩成分居多，岩浆岩很少；
Depositional facies, a term of petroleum geology, is a combination of sedimentary rocks produced by a certain depositional environment.
沉积相是石油地质学中的一个术语，是指一定的沉积环境所形成的沉积岩组合。
The Dabieshan Group is a complex composed of early formed sedimentary rocks, magmatic rocks of varying ages and types and tectonic slices.
大别山杂岩是由早期的沉积地层和不同期次、不同类型的岩浆岩以及构造岩片所组成的杂岩体。
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。
It was shown that the amphibolite was transformed from oceanic tholeiitic basalts and the leptynite was converted from acidic sedimentary rocks.
结果表明，该区的斜长角闪岩是由大洋拉斑玄武岩变质而成，变粒岩则是由酸性沉积岩变质而成。
The gold mineralization is controlled by lower carboniferous volcanic and pyroclastic sedimentary rocks, regional faults and secondary structure.
论述下石炭统火山岩及火山碎屑沉积岩、区域性大断裂及次级构造对成矿的控制作用。
The binding material in sedimentary rocks that precipitates between grains from pore fluids. Calcite and quartz are common cement-forming minerals.
沉积岩内颗粒之间的孔隙流体中沉淀的束缚物质。方解石和石英是常见的造胶结物矿物。
Through systematical analysis of the components of terrigenous sedimentary rocks, the tectonic evolution of a sedimentary basin can be reconstructed.
通过系统分析碎屑岩成分特点可以再造沉积盆地的构造演化历史。
应用推荐