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一、玉泉地区地质概况 玉泉位于张广才岭西北部及松嫩平原过度地带,属於低山丘陵区,相对高差为50—150米。 本区出露最古老的地层为上古生界(P_z)石炭——二迭系(C—P),亦称玉泉系的大理岩及石灰岩类。其地质构造特征为一轴向北东(NE),倾没南西(SW)的小背斜。其次为中生界(M_z)侏罗系(J)及白垩系(K)地层。侏罗系主要为黑色页岩及板岩,分布于玉泉车站及白帽子车站附近,不整合于玉泉系大理岩之上,在玉泉车站测得的产状为:
I. Geological Survey of Yuquan Region Yuquan is located in the northwestern part of Zhangguangcai Ridge and the Songnen Plain. It belongs to the hilly region with a relative height difference of 50-150 meters. The oldest strata in this area are the marble and limestone of the Upper Paleozoic (P_z) Carboniferous-Permian System (C-P), also known as the Yuquan System. Its geological structure features a small northeast (NE) and a small anticline inclined southwest (SW). Followed by Mesozoic (M_z) Jurassic (J) and Cretaceous (K) strata. Jurassic mainly black shales and slate, located in Yuquan station and white hat near the station, not integrated in the Yuquan marble, measured at the Yuquan station as follows: