黑龙江鸡西含煤盆地早白垩世生物地层研究新进展

RECENT ADVANCE IN STUDY OF EARLY CRETACEOUS BIOSTRATIGRAPHY FROM JIXI COAL-BEARING BASIN,HEILONGJIANG,CHINA

摘要: 近年来鸡西含煤盆地早白垩世海相沟鞭藻及早期被子植物化石的不断发现,为确认城子河组及其下伏滴道组、上覆穆棱组的时代属早白垩世提供了重要的依据。通过海相及海陆交互相生物地层研究,恢复晚中生代黑龙江省东部古地理格局,为扩大找煤远景等提供了新的基础资料。

Abstract: Recently,the new discoveries of the Early Cretaceous marine dinoflagellates and early angiosperms from Jixi coal-bearing basin in the eastern Heilongjiang,China have documented that the coal-bearing Jixi Group,consisting(ascendingly)of the Didao Formation,Chengzihe Formation and Muling Formation, aged in Early Cretaceous. The Palaeogeographic framework of the eastern Heilongjiang in Late Mesozoic era is rebuilt through marine and paralic biostratigraphic analysis,which provided new fundametal data for widening coal searching prospect.