把北京西山硬綠泥石產地,画在一張圖上,可以看出是成北北東南南西的带狀。這種帶狀分佈表示着硬綠泥石和火成侵入體的關係並不密切,相反的和西山地質構造倒有密切關係。就成分來講,西山硬綠泥石含矽氧較高;鐵氧和铝氧成1:1。因為硬綠泥石和大成侵入體沒有什么關係,所以推定硬绿泥石是區域變質產物,和李四光教授的新華夏式構造相近,可能是新華夏構造所產生的变質相。 The Beijing Xishan hard chlorite origin, drawn in a map, we can see that as a North-South Southeast ribbon. This banded distribution indicates that the relationship between hard chlorite and intrusive bodies is not close, on the contrary it is closely related to the geological structure of Xishan. In terms of composition, Xishan hard chlorite contains high silica; iron oxide and aluminum oxide into 1: 1. Because there is no relation between hard chlorite and Dacheng intrusions, it is presumed that hard chlorite is a regional metamorphism product, similar to the Xinhua-Xia type structure of Professor Li Siguang, which may be the metamorphic phase produced by the Neo-Huaxia structure.