浅议安康石煤地质特征及“十二五”开发设想

石煤是形成于早元古代和早古生代的深变质的可燃有机岩,呈黑色或黑灰色,大多具有含炭少、高灰分(一般大於60%)、高硫、低发热量和硬度大的特点,是一种低热值燃料。一般生成于古老地层中,由菌藻类等生物遗体在浅海、泻湖、海湾条件下经腐泥化作用和煤化作用转变而成。外观像石头,肉眼不易与石灰岩或炭质页岩相区别。其成分除含有机碳外,还有氧化硅、氧化钙和少量的氧化铁、氧化铝和氧化镁等。石煤在中国分布广泛,南秦岭区储量最为丰富。石煤按发热量划分为高热值石煤、优质石煤和劣质石煤三类。安康石煤以高灰、高硫低发热量为特点,规模小,伴生有益组分多,是安康重要的民用燃料。

Yee Shallow AnKang Stone Coal Geological Features and Second Five Development Vision

Stone coal is formed in the early Proterozoic and early Paleozoic metamorphic combustible organic rock deep,black or dark gray,mostly to contain less carbon,high ash content(generally greater than 60%),high-sulfur,low heat and hardness characteristics of a low calorific value fuel.Normally generated in the ancient strata,from algae and other biological remains in shallow water,the lagoon,under the conditions of the Gulf by the sapropel of shift in the role and coalification.Look like stone,limestone,or with...