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巖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 results show that the siliceous rocks intercalated with the coal seams were deposited from a hydrothermal medium through which germanium was enriched in the coal beds. the primary source…
研究结果表明,与矿化煤层互层的硅质巖为热水沉积成因,矿化煤层中的锗主要来自形成硅质巖的热水溶液,而这种热水溶液中的锗则主要由盆地基底的富锗花岗巖所提供。
the siliceous rocks of the lower mantou formation were resulted from the biochemical action during the sedimentary period and formed in the environment of low-tide shallow sea.
结果表明,镘头组下部的硅质层是同生期生物化学作用成因的,形成于潮下低能浅水环境;
the immediate host siliceous rocks are of hydrothermal sedimentary origin, not of fault breakinghydrothermal silicified origin.
含矿硅质巖与热水沉积作用有关,而非前人认为的断裂破碎热液硅化交代巖。
the siliceous rocks are is extensive distributed on the tsinling orogenic belt and the southern of china, and has a deep relation with mineral resources.
在秦岭造山带及其南部地区广泛发育硅质巖,并与矿产资源存在密切的关系。
sedimentation - exhalation siliceous rocks are of great significance in the study of ore deposits.
喷流-热水沉积硅质巖对于矿床研究具有重要意义。
the origins of the siliceous rocks have been researched systematically based on their lithological and geochemical characteristics.
根据硅巖的巖石学及地球化学特征,对其成因进行了系统研究。