山东潍坊昌邑地区找煤方向

Coal finding guidance in Changyi district of Shandong Province

我国东部尤其是隐蔽区找煤日益受到重视。根据钻孔揭露的山东潍坊昌邑地区第四系覆盖区古近纪含煤地层的赋存特点、岩浆岩侵入特征、煤质资料分析结果,以及地震勘探资料解释的地质构造等,推断该区含煤地层赋存规律与其近临的五图煤田和黄县煤田具有相似性,为典型的古近纪河湖相含煤断陷盆地,且受岩浆侵入影响,煤的变质程度较高。进而提出今后的找煤方向为该区南部和东部。

Coal researching in east part of China and especially in concealment is regarded more and more. The deposit features of the Quaternary coal bearing stratum in Changyi district of Weifang area, Shandong Province is discussed in this paper. Geological structures are interpreted according to the magmatic intrusion property, coal quality, the data of seismic exploration, and the deposit rule of the coal bearing stratum is concluded. It is inferred that the coal bearing properties in this area are similar with that of Wutu coal field and Huangxian coal field, being a typical Paleogene fluvial-lacustrine coal bearing faulted basin, and suffered magmatic intrusion actions and the coal rank is high. Finally the southern and the eastern parts are determined as the coal finding target area in the future.