CHRONOSTRATIGRAPHIC DIVISION OF THE EARLY CRETACEOUS JIUFENGSHAN FORMATION IN HEIBAOSHAN-HANDAQI BASIN, HEILONGJIANG PROVINCE
YANG Ya-jun1, JIANG Bin1, WANG Xiao-zheng2, PANG Xue-jiao1, SHI Guo-ming3
1. Shenyang Center of China Geological Survey, Shenyang 110034, China; 2. Core and Sample Center of Natural Resources, CGS, Sanhe 065201, Hebei Province, China; 3. Heilongjiang Institute of Natural Resources Survey, Harbin 150036, China
Abstract：The biostratigraphic characteristics of Jiufengshan Formation in Heibaoshan-Handaqi Basin of Heilongjiang Province are systematically summarized and compared to determine the climatic environment and age of its formation. The plants and their sporopollen fossils reflect the typical subtropical humid climate and age of Early Cretaceous. The diagenetic age of 119±0.89 Ma is obtained by the LA-ICP-MS zircon U-Pb isotopic dating of rhyolitic tuff in the lower part of Jiufengshan Formation. Combined with the paleontology and isotopic age, it is determined that Jiufengshan Formation was formed in the middle-late Aptian of Early Cretaceous, which provides accurate chronological basis for the correlation of Late Mesozoic regional strata, coal-forming ages and coal-bearing basins in Northeast China.
杨雅军, 江斌, 王筱筝, 庞雪娇, 石国明. 黑龙江黑宝山-罕达气盆地早白垩世九峰山组年代地层划分[J]. 地质与资源, 2020, 29(5): 403-410.
YANG Ya-jun, JIANG Bin, WANG Xiao-zheng, PANG Xue-jiao, SHI Guo-ming. CHRONOSTRATIGRAPHIC DIVISION OF THE EARLY CRETACEOUS JIUFENGSHAN FORMATION IN HEIBAOSHAN-HANDAQI BASIN, HEILONGJIANG PROVINCE. GEOLOGY AND RESOURCES, 2020, 29(5): 403-410.
Ludwig K R. User's Manual for Isoplot 3.00:A geochronological toolkit for Microsoft Excel[M]. Berkeley:Berkeley Geochronology Center Special Publication, 2003:1-70.
2020, Vol. 29 
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