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十九世纪初,美人维里斯于中国调查地质时,在五台山区首先创立“滹沱系”一词,用以代表滹沱河两岸受轻微变质的岩系。以后由于葛利普的错误认识,又将滹沱系废弃而代之以震旦系。近年来由于多次的野外实际观察,又证明了五台山区滹沱系的确存在。整个滹沱系地层包括巨厚的砾岩(王曰伦称为冰碛岩)、石英岩、板岩,及“东冶灰岩”。厚约1000公尺左右的“东冶灰岩”实际上皆为白云岩,而过去一直都认为是含SiO_2较高的灰岩,并与北京附近的“南口灰岩”对
At the beginning of the nineteenth century, when the American Venetian was investigating the geology in China, he first created the term “Huituo system” in Wutai Mountain to represent the lightly metamorphosed rock series on both sides of the Hutuo River. Later, due to the mistaken understanding of Ge Li Pu, but also Tuo Tuo abandoned and replaced by the Department of Sinian. In recent years, due to many actual observations in the field, it has also proved that the Wutuo Mountain in Wutai Mountain does exist. The entire Hutuo system strata include huge thick conglomerate (Wang Yuelun known as moraine rock), quartzite, slate, and “East Metallurgical.” The “Dongye limestone”, which is about 1000 meters thick, is actually dolomite, which in the past was always considered to be limestone with higher SiO 2 content. It has also been used with the “Nankou limestone” near Beijing