论文部分内容阅读
我国东部中生代含煤建造多为陆相,发育在相互分隔的内陆盆地中,海陆交替相煤系在局部地区也有分布,但远不如晚古生代的聚煤坳陷广阔。含煤建造形成时,正值构造运动剧烈活动的时期。构造体系对含煤建造的控制更为显著,建造特征、盆地类型和分布形式具有多样性。总观我国东部中生代聚煤盆地的分布,可以看出煤盆地的展布主要是以北北东向,即
The Mesozoic coal-bearing formations in the eastern part of China are mostly continental facies and are developed in separate inland basins. The coal-bearing alternations between land and sea are also distributed in some areas, but far less than that of the Late Paleozoic coal-polymetallic depressions. The formation of coal-bearing formations coincided with periods of dramatic activity in tectonic movements. The tectonic system has more significant control over the coal-bearing construction. The characteristics of the construction, the type and distribution of basins are diverse. Looking at the distribution of the Mesozoic coal-accumulating basins in the eastern part of China, we can see that the distribution of the coal basins is mainly in the north-north direction