The results show that the long - flame coal distributs in the six coal - rich regions , the lignite distribute in southwest and north central region and gas coal distribute in south central of eastern depression on plane 在平面上，长焰煤在东部凹陷的6个赋煤区均有分布，褐煤分布于东部凹陷西南端和中北部，气煤则集中分布于该凹陷的中南部。
2.
The qitaihe coal resources isadvantageous , the coal field total area 8 , 000 square kilometers , haveverified the geological reserve 1 . 7 billion tons , the prospectivereserves 4 . 2 billion tons , the coal plant completely , has the cokingcoal , 1 / 3 coking coal , the gas coal , the anthracite and so on 10varieties , by coking coal primarily ; excellent in quality , has theespecially low phosphorus , especially low characteristic and so onsulfur , high heat value , high ash melting point , high silicon content , most is suitable for the coal chemical industry product thedevelopment , is national one of three big protections mining rare coalfields , is the heilongjiang province most important anthraciteproduction base , also is the national important coking coal and thenortheast area biggest high quality coke production base 七台河煤炭资源得天独厚，煤田总面积8000平方公里,已探明地质储量17亿吨，远景储量42亿吨，煤种齐全，有主焦煤、 1 / 3焦煤、气煤、无烟煤等10个品种，以主焦煤为主；品质优良，具有特低磷、特低硫、高发热值、高灰熔点、高硅含量等特点，最适于煤化工产品的开发，是全国三大保护性开采稀有煤田之一，是黑龙江省最重要的无烟煤生产基地，也是国家重要的主焦煤和东北地区最大的优质焦炭生产基地。
