山东省煤炭资源与赋煤规律研究
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Research Coal Distributions and Coal accumulation Regularities in Shandong Province
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    摘要:

    山东煤炭资源丰富,已累计查明煤炭资源储量3123亿吨,保有煤炭资源储量2741亿吨。其中,基础储量占保有量的2/5,可采、预可采储量占保有量的1/5。煤类以烟煤为主,褐煤、无烟煤以及炼焦用煤、天然焦较少。山东煤炭可采储量偏低,炼焦用煤储量更少。山东省是产煤大省和消费大省,年产量15亿吨左右,居全国第七位,调入25亿吨;年消费量39亿吨左右,占全国1/10。2014年我国煤炭产量387亿吨,占全国能源生产总量的732%;消费量351亿吨,占一次能源消费总量的642%。在一定时期内我国能源结构以煤炭为主形势下,已设立的煤炭勘查及后续采矿工作仍需推进。山东聚煤期有石炭—二叠纪、中侏罗世坊子期、古近纪五图期三个时期,石炭—二叠纪是最重要的聚煤期。太原组在潟湖及潮汐三角洲远端的部位形成的煤层也较好,局部达可采厚度;山西组河控浅水三角洲在大面积范围内迅速发展,形成了厚度较大、分布面积较广的主采煤层;坊子组及李家崖组聚煤作用发生在盆地水域扩张—盆地萎缩早期,煤聚积由扇三角洲平原及前缘向盆缘方向扩展。随着聚煤期后发生的印支、燕山及喜马拉雅期等一系列构造运动,煤层赋存遭受了不同程度的剥蚀和影响。研究发现,山东及邻区的赋煤构造总体上表现为“掀斜式构造,北断南超”,呈“凹凸相间”的构造样式;其赋煤规律是:具有经济意义的煤层通常赋存在“隆起中的凹陷,凸起的边缘、潜凹陷中的地垒、潜凸起中的地堑”;创建的覆盖区的找煤模式是“凹中找垒,凸中找堑”,鲁中隆起则是断陷盆地,局部在断块凸起的边缘。根据赋煤规律研究成果,新发现了单县煤田和曹县煤田。在此基础上又给出了山东今后的找煤靶区预测,在菏泽及其南北邻区的河南省、聊城、济南、济宁、德州及邻区的河北省以及鲁中的部分地区,优选了6个找煤靶区。

    Abstract:

    The Shandong is rich coal resources, with the cumulative known coal reserves go to 3123 billion tons and the coal resours to mainly 2741 billion tons. The coal type is bituminous with minor of the lignite, anthracite coal and natural coke. The main coal accumulating periods in Shandong are Carboniferous Permian, Fangzi period of middle Jurassic and the Wutu period of Paleogene with the Carboniferous Permian being the most important coal accumulating period. The coal seams of Taiyuan Formation formed in the lagoon and tidal delta distal part and local areas can reach minable thickness. The fluvial dominated shallow water delta of Shanxi Formation developed rapidly in large scale, forming the main mineable coal seams of large thickness and wide distribution area. The coal accumulating effect of Fangzi Formation and Lijiaya Formation occurred in the early period of basin water expansion contraction, coal accumulating extended from the fan delta plain and front to the basin edge. Coal occurrence has suffered varying degrees of erosion a series of tectonic movement after coal accumulating stages. We can conclude from the research that the coal occurrence regularity of Shandong is characterized by “tilted type structure, faulting in the north and overlapping in the south”, and the tectonic style by “the concave block alternate with convex block”. The coal seams with economic significance occur in “the edge and concave of block, horst of the latent sag, the graben of bump”, pointing out that the coal exploration direction of Shandong is “the base in concave, and the graben in convex”. The Shandong uplift zone is a rifted basin with lgcal at edge of graben basin. According to our research results, we found the Shanxian coalfield and Caoxian coalfield. On this basis, we have forecast the coal target areas in Shandong, and optimized six coal surveying target areas in Heze, Liaocheng, Jinan, Jining, Dezhou and parts of central area in Shangdon.

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张增奇,梁吉坡,李增学,张义江,孙斌,程伟,冯婷婷,陈军.2015.山东省煤炭资源与赋煤规律研究[J].地质学报,89(12):2351-2362.
ZHANG Zengqi, LIANG Jipo, LI Zengxue, ZHANG Yijiang, SUN Bin, CHENG Wei, FENG Tingting, CHEN Jun.2015. Research Coal Distributions and Coal accumulation Regularities in Shandong Province[J]. Acta Geologica Sinica,89(12):2351-2362.

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  • 收稿日期:2015-11-17
  • 最后修改日期:2015-11-17
  • 录用日期:2015-11-30
  • 在线发布日期: 2015-12-23
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