PALYNOFLORA FROM THE QUANTOU FORMATION OF SONGLIAO BASIN, NE CHINA AND ITS BEARING ON THE UPPER-LOWER CRETACEOUS BOUNDARY
PALYNOFLORA FROM THE QUANTOU FORMATION OF SONGLIAO BASIN, NE CHINA AND ITS BEARING ON THE UPPER-LOWER CRETACEOUS BOUNDARY
复制标题
DOI：
--
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
L. Wen
中科院分区：
文献类型：
--
作者：
L. Wen
中国东北部松辽盆地发育一个由10个岩性建造组成的白垩系陆相地层(见李雯、本、刘钊，1994年，图16)。尽管所有地层都含有丰富的化石，包括双壳类、腹足类、甲壳类、介形类、鱼类、爬行动物、轮藻、孢子体和植物巨型化石，但不同化石群的研究人员对每个组的年代学问题尚未达成共识。不幸的是，甚至在孢粉学家之间也存在着观点的分歧。对于上、下白垩统界线，孢粉学家提出了两种不同的建议：泉头组与登娄库组之间(李雯·本、刘钊，1994年)和秦山口组与泉头组之间(高锐·齐，1982年；高锐·齐等，1999年)。显然，争议主要是由泉头组不同的年代引起的。
In the Songliao Basin of northeastern China is well developed a non marine Cretaceous sequence composed of 10 lithological formations (see Li Wen ben and Liu Zhao sheng, 1994, fig.16). Although all the formations are rich in fossils including bivalves, gastropods, conchostracans, ostracods, fishes, reptiles, charophytes, sporomorphs and plant megafossils, researchers on different fossil groups have not yet reached a consensus to chronological problems for each formation. Unfortunately, the divergence of view points even exists among the palynologists. For the Upper Lower Cretaceous boundary, palynologists have given two different proposals: between the Quantou and Denglouku formations (Li Wen ben and Liu Zhao sheng 1994) and between the Qinshankou and Quantou formations (Gao Rui qi, 1982; Gao Rui qi et al ., 1999). Obviously, the dispute is mainly caused by the different datings of the Quantou Formation.