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一、概况美国总面积为936.3万平方公里,含煤面积达110万平方公里占总面积的11.7%。全国有三十七个州有煤炭资源。美国的煤炭资源按其自然地质形成分为三个区域:东部主要在阿巴拉契亚盆地;中部包括从印地安那到阿克拉荷马和得克萨斯等州的蕴藏,称中西部盆地;西部是以中西部盆地以西的煤炭蕴藏区。美国的煤炭资源极为丰富,仅次于苏联,占世界第二位。总资源储量达35997亿吨。1984年的实测储量为4429亿吨,其中烟煤2309.9亿吨,占总储量的22.5%;次烟煤1643.6亿吨,占37.1%;褐煤408.9亿吨,占9.2%:无烟
I. Overview The United States has a total area of 9,363,000 square kilometers and a coal-containing area of 1.1 million square kilometers, accounting for 11.7% of the total area. Thirty-seven states have coal resources throughout the country. According to its natural geological formation, coal resources in the United States are divided into three regions: the eastern part is mainly in the Appalachian Basin; the central part contains the deposits from Indiana to the states of Accra and Texas; the Midwest Basin; the western part Is the western part of the western basin of coal reserves. The United States is extremely rich in coal resources, second only to the Soviet Union, accounting for the second in the world. Total resources reserves reached 3.5997 trillion tons. Measured reserves in 1984 were 442.9 billion tons, of which 230.99 billion tons of bituminous coal accounted for 22.5% of the total reserves; 164.36 billion tons of sub-bituminous coal accounted for 37.1%; 40.89 billion tons of brown coal accounted for 9.2%