weathering crust

Study on Recovery of RE from Elution Deposit Ore in Weathering Crust of Biotite Granite

从黑云母花岗岩风化壳淋积型稀土矿中回收稀土问题的研究

Lateritic weathering crust, ferruginous deposit reflects the hot and hot~ humid climate.

红土型风化壳，三价铁质沉积反映了湿热-热气候。

Study on X-ray diffraction and infrared absorption spectra of Litang laterite weathering crust, Guangxi

广西黎塘红土风化壳X射线衍射和红外吸收光谱分析研究

Due to obvious paleo-karst erosion flutes and platform co-exit at the top of the weathering crust.

由于古岩溶作用明显,风化壳顶面具有显著的岩溶地貌特征,形成了独特的沟台并存格局.

Effected factors are the volcanic lithofacies, weathering crust, secondary alteration, volcanic rock and tectogenesis.

影响储层物性的因素有火山岩相、风化壳、次生蚀变、火山岩岩性、构造运动等。

The main controlling factors of reservoir developing are lithology , lithofacies and ancient weathering crust karstification.

储层发育的主要控制因素为岩性和岩相、古风化壳岩溶作用.

The low resistant erosion ability of ground substance, especially in granite weathering crust and purple rock and its soil are the inner causes of severe soil erosion.

抗侵蚀性较弱的地面组成物质，特别是花岗岩和紫色岩风化壳及其土壤，是造成土壤侵蚀特别严重的内在原因；

A Model Study on the Formation of Compound of Humic Acid and REE under Weathering Conditions in the Weathering Crust REE Deposits

风化壳中腐植酸与REE形成配合物的模拟研究

Both weathering crust zonation and quality classification of rock mass are important for shallow-buried tunnels.

风化壳分带和岩体质量分级对浅埋隧道设计和施工很重要,需对这两套系统定性和定量指标做平行判别.

The types of reservoirs main include base rock weathering crust, sandstone, tuffaceous sandstone and conglomerate.

储层类型主要包括基岩风化壳 、 岩 、 灰质砂岩和砾岩.

This paper discusses the hydrocarbon conduit systems such as fault and structural fissure, unconformity and paleo-weathering crust, Ordovician vug and fracture as well as interconnected sand body in light of Tahe oilfield and its regional geological situations.

根据塔河油田及其区域地质情况，论述了断层及构造裂隙，不整合面和古风化壳，奥陶系孔、洞、缝和连通砂体四类输导系统。

The weathering crust eluvial type REE deposits develop widely in southern Hunan.

风化壳淋积型稀土矿床,在湘南地区普遍发育.

The deposit is formed in marine invasion by weathering crust transportation, sedimentation, diagenesis and super genesis.

矿床是在海侵过程中风化壳解体,经搬运 、 沉积 、 成岩及表生作用形成.