东北地区南部中生代含煤地层及其特征

MESOZOIC COAL-BEARING STRATA AND ITS CHARAC TERISTIC IN SOUTHERN RART OF NORTHEAST CHINA

介绍了东北地区南部广泛分布的陆相早中侏罗世和晚侏罗世－早白垩世含煤地层。前者含Ｃｏｎｉｏｐｔｅｒｉｓ－ｐｈｏｅｎｉｃｏｐｓｉｓ植物系的早、晚组合；后者含Ｒｕｆｆｏｒ－ｄｉａ－Ｏｎｙｃｈｉｏｐｓｉｓ植物系的早、中、晚组合。它们分别代表了不同时代的含煤层位。讨论了热河生物群、阜新生物群的先后演化关系及其对含煤地层对比的重要意义。总结了上述地层的岩相、含矿性特征。

This paper has introduced the Mesozoic terrestrial early-Middle gurassic and Lategurassic as well as early Creaceous coal-bearing gtrata widely distributed in southern part ofNortheast China. The former contams early and late assemblages of Coniopteris─Phoeniopsisplanr formation, the latter with early,middle and late assemblages of Ruffoordia─OnychiopsisPlant fQrmation. Theyrepresent coal-bearing beds of different ages. The paper had disscussed theevolutionary relationship of Rehe biota and Fuxin biota and its significance for coal-bearing stratacorrelation,it also sum up the facies,coal-bearing characters of the mentioned strata.