摘要
利用最新的古生物、磁性地层年代资料、高分辨率层序延续时间推算及与全球海平面升降曲线对比等方法,对鸡西群穆棱组进行了精细的年代地层划分,确定了穆棱组形成时代为早白垩世巴雷姆早期—阿尔布早期,绝对年代为116～107Ma,其中穆棱组下部主要含煤段形成时间为115～111Ma.这一研究成果为黑龙江省东部早白垩世高精度地层划分对比及成煤期次的确定提供了精确的年代依据.
The latest fruits of paleontology, magnetostratigraphy and chronology are adopted to make a fine classification on the Muling formation of Jixi group, by means of high-resolution sequence calculation and global sea level curve comparison. The forming time of Muling formation is determined in early Barremian-early Albian of the Early Cretaceous, with absolute time of 116 - 107 Ma. The main coal-bearing member in lower Muli formation was formed between 115 Ma and 111 M＇a. The result provides a foundation of exact time for the high precision stratigraphic subdivision and coal-forming period in Eastern Heilongjiang Province.
出处
《地质与资源》
CAS
2005年第3期166-169,共4页
Geology and Resources
基金
国家基础地质调查(200113000042)1:25万鸡西市幅区调成果
关键词
早白垩世
穆棱组
年代地层
黑龙江省东部
Early Cretaceous
Muling formation
Chronostratigraphy
Eastern Heilongjiang Province
