山东省阳谷-茌平煤田地质特征及资源潜力分析

Analysis on Geological Characteristics and Resource Potentiality of Yanggu-Chiping Coalfield in Shandong Province

为加快阳谷-茌平煤田煤炭资源开发,近年来投入大量地质工作。通过二维地震测量及钻探工作认证,在矿区地层中又揭露出侏罗纪三台组地层;构造格局由4个升降相间的断块组成;煤系地层中局部出现辉长岩等岩浆岩侵入现象。本溪组、山西组、太原组为主要含煤地层,含煤24层,可采煤层10层;煤质主要为气煤、气肥煤,少量焦煤、无烟煤;开采条件较好。初步预测埋深-1 500 m以浅煤炭资源量86.5亿t;埋深-1 500 m以深煤炭资源量130.5亿t,具有较好的开采前景。

In order to speed up the exploration of coal resources in Yanggu Chiping coalfield,a lot of geological work have been carried out in recent years.Through 2D seismic survey and drilling certification,Jurassic Santai formation had been exposed in the mining area.Tectonic pattern was composed by 4 blocks lifting and falling alter-natively.Some magmatite intrusion phenomenon appeared regionally in coal strata,such as gabbro.Benxi forma-tion,Shanxi formation and Taiyuan formation are main coal bearing strata.Coal-bearing strata are 24 layers,and mining coal strata are 10 layers.It is mainly composed of gas coal and gasfat coal,and accompanied with coking coal and anthracite.Its mining conditions is also good.Through preliminary predication,coal resource amount in the buried depth of -1500m was 86.5 billion tons;while the amount with the buried depth -1500m was 130.5 billion tons.It has a good exploration prospect in this area.