siliceous

Sedimentological Features and the Genesis of Lower Permian Nodular and Thin-Bedded Siliceous Rocks in Southern Anhui

安徽南部下二叠统结核状硅质岩和层状硅质岩的沉积学特征及其成因探讨

The main kinds of rocks include carbonate rocks , tuffite, siliceous rocks and quartz sand-stone.

主要岩石类型包括碳酸盐岩、沈积凝灰岩 、 矽质岩和石英砂岩.

According to the nature, Guangxi Limestone is separated into three types: pure limestone, siliceous limestone, mixed sand shale or limestone of igneous rock.

广西的石灰岩按性质可分为纯质石灰岩、夹硅质石灰岩、夹砂页岩或火成岩的石灰岩三种类型。

The Pre-cambrian alumino-siliceous slate is the host rock of antimony deposit inHunan.

湖南前寒武系的 硅铝 质板岩是锑矿主要赋矿岩性.

The thin bedded siliceous-rocks include chert and depositional quartz with textures of oolite and pebble.

矽质岩包括燧石和沈积石英岩,呈薄层状产出,沈积石英岩具鲕状、砾状结构.

The industry waste slag fly ash or the river sand is used as the siliceous material.

工业废渣粉煤灰或河砂一般被用来作为硅质材料.

Thin basalt ( spilite) layers are often interbedded in those deep marine radiolaria-bearing siliceous rocks.

与深海相放射虫硅质岩相伴，则夹有玄武岩（细碧岩）层。

Through analysis of the gold deposits of siliceous mudstone type in south subzone of western Qinling, this paper firstly pointed out the genesis of concealed hydrothermal eruption and established their metallogenic model.

本文通过对西秦岭南亚带硅灰泥岩型金矿床的分析研究，首次提出金矿床的热液隐爆成因，并建立了相应的成矿模式。

Diagenetically authigenic minerals are dominantly kaolinite, chlorite, siliceous, and ferruginous calcite.

成岩自生矿物主要有高岭石、绿泥石、硅质、铁方解石。

Research on Recovery of Sodium Oxide from Sodium-bearing Siliceous Residue By Hydration of CaO

CaO水化法从钠硅渣中回收氧化钠的研究

The Siliceous-Calcareous-Argillaceous Rock Type Uranium Deposit in South Subzone of Western Qinling

西秦岭南亚带的碳硅泥岩型铀矿

On sedimentary geochemistry of siliceous rocks originated from thermal water in NANDAN-HECHI Basin

丹池盆地热水成因硅岩的沉积地球化学特征

Peri-beach tide flat facies with shallow water body and peri-platform margin siliceous rock basin facies with deeper water body are unfavourable for the living of conodont animals;

水体较浅的近滩潮坪相和水体较深的近台边缘硅质岩盆地相则不适宜牙形石动物生存。

Guizhou bauxite is a difficult to digest diaspore bauxite and its silicon content is high while iron content is low. The aluminiferous and siliceous minerals in the bauxite are more difficult to dissolve than those in the same kind of bauxites from Russia and Greece.

贵州铝土矿是高硅低铁、难溶的一水硬铝石型矿石，其铝矿物及硅矿物比俄罗斯和希腊同类型铝土矿中的铝硅矿物都难溶。

Sensitive materials for transducers and optical fibre; materials for new energy include noncrystalline siliceous material for solar battery; high density material for hydrogen storage;

新能源材料介绍了非晶硅太阳能电池材料、高密度贮氢材料、高温工程陶瓷材料、超导材料；

The argillaceous matrix, kaolinite, ferruginous calcite, and siliceous are the mainly interstitial materials.

填隙物成分主要为泥质杂基、高岭石、含铁方解石和硅质。

Gritrock is siliceous sandstone.

粗砂岩是硅酸砂岩.

SiC was prepared with siliceous colliery waste, quartzite, anthracite coal and weakly caking coal by Acheson process. The microstructure of siliceous colliery waste was investigated by SEM.

分别以硅质煤矸石、石英砂与弱粘煤、无烟煤作原料用Acheson工艺合成了SiC，并研究了硅质煤矸石的微观结构。

The host rock conformably overlies a band of siliceous chert breccia.

含矿主岩整合地上覆于硅质燧石角砾石带之上。

The host rock conformably overlies a band of siliceous chertybrecia.

含矿主岩整合地上覆于硅质燧石角砾石带之上.

The latter consisting of dark gray clastic limestone, chert beds, siliceous mudstone and massive reef and usually with graded bedding.

石灰岩建造常为黑色、灰黑色碎屑石灰岩、燧石层、粉砂质泥板岩和礁灰岩组成，常夹递变层理。

The ore bodies which occur in typical geosynclinal flusch formation are mostly stratiform, stratoid, or in lenticular form. They are strictly controlled by siliceous limestone-layers of middle Carboniferous.

矿体主要呈层状、似层状或透镜状产于典型地槽复理石建造中，它们严格受中石炭纪硅质灰岩控制。

It mainly consists of spilite, keratophyre and volcanic clastics, intercalated with siliceous rocks, limestone and clastic rocks or lens.

主要由细碧岩、角斑岩及火山碎屑岩组成，其中有硅质岩、灰岩及碎屑岩夹层或凸镜体。

Sedimentation-exhalation siliceous rocks are of great significance in the study of ore deposits.

喷流-热水沉积硅质岩对于矿床研究具有重要意义.

The studies indicate that the material source of this type of lateritic gold deposit is Au-rich rocks and/ or ores with high siliceous material ( quartz SiO2) and rich ferruginous material ( pyrite etc.).

研究表明，本类红土型金矿的物质来源是高硅质（石英）、富铁质（黄铁矿等）的富金矿（岩）石；

The prominent characteristic of the siliceous rock is the residual bioclastic structure, with plenty of silicified calcareous organisms, such as brachiopoda, encrinite caudex and coral, which are several millimeters in size.

其显著特征是，岩石具残余生物碎屑结构，见大量腕足类、海百合茎、珊瑚等钙质生物假象，主要为mm级完整个体，密集堆积。