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一、问题的提出湘南白沙——永来煤田晚二迭世龙潭组,是湖南省的重要含煤建造,不论储量产量都占重要地位。含煤建造的厚度在湘南地区变化较大,一般在300-600米之间,常根据含煤性分为上下两段,煤层主要赋存于上段。各段主要由碎屑岩(中、细粒砂岩粉砂岩)和粘土岩组成,砂页岩比略大于1或近于1,共含煤10层左右,各处可见者6-7层,达到可采者为5号6号煤层。煤层厚度沿走
First, the issue put forward Shirak-Baisha - Yonglai Coalfield Late Second Diego Longtan Group, is an important coal-bearing construction in Hunan Province, regardless of the volume of reserves are an important position. The thickness of coal-bearing construction varies greatly in southern Hunan, generally between 300-600 meters, and is often divided into upper and lower sections according to coal-bearing properties. The coal seam mainly occurs in the upper section. Each section is mainly composed of clastic rocks (medium and fine sandstone siltstone) and clay rocks. The sand shale ratio is slightly larger than 1 or nearly 1, with a total of about 10 layers of coal, with 6-7 layers visible everywhere Recoverable No. 5 6 seam. Seam thickness along the go