The sedimentary rocks and granite in the region are of very weak or no magnetism, while the boron ore and skarn with close relation to boron mineralization are of quite high content of magnetite.

区内沉积巖和花岗巖磁性微弱或无磁性，与硼矿密切相关的硅卡巖及硼矿石中磁铁矿含量较高。

The results show that the soils have, in varying degree inherited some properties of purple sedimentary rocks for their very weak chemical weathering.

结果显示，紫色沉积巖发育的土壤，在一定程度上继承了母巖的特点，化学风化作用微弱。

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巖系的铅同位素组成相似。

East complex terrain, a steep slope, numerous islands, is the fold of the seabed Proterozoic sedimentary rocks and too ancient crystalline rock.

东部地形复杂，坡度较陡，岛屿众多，海底是褶皱的元古代沉积巖和太古代结晶巖。

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，沉积巖的沉降伴随有扩张的流体饱和带的形成。

The primary rocks include the various sodium-rich volcanic rocks and the sedimentary rocks with sodium-rich volcanic materials which are well developed in the North Qilian eugeosyncline area.

区内含蓝闪石巖的原巖包括优地槽内发育的各类富钠火山巖、含富钠火山质的沉积巖。

An anisotropic model of sedimentary rocks is presented.

给出了沉积巖的一种各向异性模型。

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巖组合。

In sequence stratigraphy, a section of fine-grained sedimentary rocks that accumulated slowly, thereby representing a considerable span of time by only a thin layer.

在层序地层学中，细粒沉积巖的剖面堆积得很慢，因此只要一个薄层就代表着相当可观的时间跨度。

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巖组成并不均一。

The sedimentary rocks were originally deposited in the water.

沉积巖原来埋藏于水中。