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- A siliceous rock of chalcedonic or opaline silica occurring in limestone. 硅石出现在灰岩中的玉髓或蛋白色硅石
- The calcareous and siliceous rock deposits of springs, lakes, or ground water. 泉华泉、湖或地下水中的。
- Thus, the "radiolarian cherts" and the siliceous rock of Maokou Formation are diferent lithostratigraphic units. 因此，两者应分属不同的地层单位。
- It occurs in the siliceous rock of Cambrian Hetang group, the ore-body displays occurrence in the form of beds, pralleling wi... 在油漆中替代沉淀硫酸钡和滑石粉。用硅土作填料，具有提高产品的性能和质量，可降低生产成本，增强企业活力。
- Raw materials include breccia,siliceous rhyolite,quartzite,jasper,agate,dacite,obsidian and crystal,with breccia and siliceous rock being the most important stone materials. 两类细石核所采用的原料包括火山角砾岩、硅质岩、流纹岩、石英岩、碧玉、玛瑙、英安岩、黑曜岩及水晶等9种,以火山角砾岩和硅质岩为主,原料利用方面没有大的差别。
- During ealy-middle Silurian, episodic-fluid activity produced albite rock, barite rock, ferruginous carbonate rock, siliceous rock and ore deposits of Pb-Zn and mineralization of Au. 早、中志留世继续发展，形成了钠长石岩、重晶石岩、铁碳酸盐岩、硅质岩与铅-锌、金矿床；
- 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。
- 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。
- Laminated siliceous rocks in country rocks might represent the nature of the Devonian hydrothermal sedimentary rocks. 围岩中的层纹状硅质岩可能代表了泥盆纪时期的热水沉积岩性质。
- Abstract: Sedimentation_exhalation siliceous rocks are of great significance in the study of ore deposits. 中文摘要: 喷流_热水沉积硅质岩对于矿床研究具有重要意义。
- Skarnization siliceous rocks in the lower Ordovician Tieshidasi group is one of the dominant host rocks of Kendekeke cobalt-gold deposit. 上奥陶统铁石达斯群夕卡岩化硅质岩是东昆仑肯德可克钴金矿床的主要围岩之一,具有沉积结构构造。
- The overlying siliceous rocks were not influenced by hydrothermal activity, and they are deposited on the margin of a hydrothermal basin. 矿体顶板上覆地层中的硅质岩基本没有受到热水活动的影响,沉积于盆地边缘的构造环境;
- The Dalong Formation in Guangyuan area in northwestern Sichuan Basin is mainly composed of interbeds of carbonate rocks, siliceous rocks and shales. 摘要四川盆地西北广元地区上二叠统大隆组主要为碳酸盐岩、硅质岩和页岩互层沉积。
- They are usually claret fied into two main type, namely that of siliceous rocks and that of valcanic rocks, and distributed in a certain pattern. 分矽卡岩型和火山作用型两类。其分布有一定规律。
- The ratios of Fe/Ti, (Fe+Mn)/Ti, Al/(Al+Fe+Mn) and U/Th, and Al Fe Mn and Fe Mn (Ni+Co+Cu) diagrams show that the siliceous rocks are the sedimentary rocks of hydrothermal origin. Fe/Ti、（Fe＋Mn）/Ti、Al/（Al＋Fe＋Mn）、U/Th比值及Al?Fe?Mn、Fe?Mn?（Ni＋Co＋Cu）三角图均表明岩石为热水来源沉积岩。
- The development of silicate rock analysis over the last fifty years is reviewed in this paper. 摘要评述了矽酸盐岩石分析在过去的50年中的主要进展。
- Carbonate rock in CO2-H2O-rock system can uptake more CO2 from soil or air than silicate rock due to dissolubility of the carbonate rock. 摘要在CO2-H2O-岩石系统中由于碳酸盐岩的可溶性，使其回收土壤／大气CO2的通量比硅酸盐岩更大。
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- The burnability of four raw mixes, using of burned duns, micropowder of silica sand, mill tailings of silicate rock and sand stone, was tested. 用自燃煤矸石、石英砂超细粉、硅石尾矿和砂岩分别制备4种生料进行易烧性试验，结果表明是可以用工业废渣替代砂岩的。
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年，长大后成了地质学家。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
