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著名的瓦房子锰矿北部外围有多处富锰矿点,如柴家屯、兰家沟、马家沟、张家沟、偏道子、高桥、二庄屯、影壁山等,品位均在40～50％左右。除柴家屯曾探明锰矿储量约33万吨外,其他矿点工作较少,兰家沟锰矿断续做过地质工作,因矿体复杂,仅获5千吨矿石储量。由于区内发育燕山期花岗岩,大理岩化等蚀变作用比较普遍。锰矿体略呈脉状等,于是大多数地质工作者认为是与花岗岩有关的中低温热液成因。最近笔者有幸到兰家沟锰矿一带考查,认为可能
The famous tile house northern manganese manganese ore outside the rich manganese ore points, such as Chaijia Tuen, Lanjiagou, Majiagou, Zhangjiagou, partial to son, Takahashi, Erzhuang Tuen, Yingbishan, etc., grade are in 40 ~ About 50%. In addition to Chaijitun has proven reserves of about 330,000 tons of manganese ore, the other mine work less, Lanjiagou manganese ore intermittent done geological work, due to complex ore body, only 5,000 tons of ore reserves. Due to the development of Yanshanian granite in the area, alteration of marble and other alterations is relatively common. Manganese ore body slightly veins, etc., so most geologists believe that granite-related low and medium temperature hydrothermal genesis. Recently, I was fortunate to Lanjiagou manganese ore area inspection, that may be