The sedime ntary conglomerates in Late Paleozoic from Daqingshan coalfield was tightly rela ted to the rising of northern orogenic zone and deposited in foreland basin.

• 大青山煤田晚古生代沉积砾岩的形成与北部造山带的隆升密切相关,它们是前陆盆地的沉积产物。