Dinoflagellate cyst biostratigraphy of initial Neotethys transgression deposits from the Cenomanian and Turonian in the Tarim Basin, western China
Dinoflagellate cyst biostratigraphy of initial Neotethys transgression deposits from the Cenomanian and Turonian in the Tarim Basin, western China
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中国西部塔里木盆地塞诺曼阶和吐兰阶早期新特提斯海侵沉积物的甲藻包囊生物地层
DOI：
10.1016/j.marpetgeo.2022.105531
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发表时间：
2022-01
影响因子：
4.2
通讯作者：
Yanqing Xia
中科院分区：
文献类型：
--
作者：
Mingzhen Zhang;Baoxia Du;Zhixiong Wu;Longhui Dou;Abduljan Zhumahun;Dunzhu Jiaoba;Peihong Jin;Zhen Du;Sen Wang;Yanqing Xia
在晚白垩世的大海侵作用下，新特提斯海首先侵入中亚塔里木盆地西部，并一直持续到古近纪。本文报道了库克拜组海侵初期沉积的连续沟鞭藻孢囊记录。塔里木盆地西部南部ZK 5-2孔45个样品共鉴定出78个类群，其中包括74个沟囊类、2个绿藻属和2个疑源类。在库科拜组中，可划分出3个沟鞭藻带：Subtilisphaera perlucida（间隔带）、Cyclonephalus brevispinatum（间隔带）和Heterosphaeridium difficile（间隔带）。本研究中连续的恐龙囊记录校准了库科拜组从下森诺曼阶到最下土伦阶的年代地层。在库科拜组最低层中发现了高丰度的Subtilisphaera perlucida和零星的Litosphaeridium siphoniphorum，可能表明塔里木盆地的海侵发生在赛诺曼世早期。关键的棘孢囊类群的分布事件，如首次出现的艰难棘孢囊和最后一次出现的一致性出现的Litosphaeridium siphoniphorum，表明在ZK 5-2孔中，C/T边界层应该在库科拜组中上部约183 m深。
Under the great transgressions of the Late Cretaceous, the Neotethys Sea firstly invaded the western Tarim Basin, center Asian and this continued until the Paleogene. This study presents successive dinoflagellate cyst (dinocyst) records from the Kukebai Formaion deposited during initial transgressive periods. A total of 45 samples from the Core ZK 5-2 drilled in the southern part of the western Tarim Basin yield 78 taxa including 74 taxa of dinocysts, two genera of chlorophyte algae, and two acritarch species. Upwardly, three dinoflagellate zones are distinguished in the Kukebai Formation:Subtilisphaera perlucida(interval Zone),Cyclonephelium brevispinatum(interval zone), andHeterosphaeridium difficile(interval zone) respectively. Successive dinocyst records in this study calibrate the chronostratigraphy of the Kukebai Formation from the lower Cenomanian to the lowermost Turonian. A high abundance ofSubtilisphaera perlucidaand sporadicLitosphaeridium siphoniphorumcan be observed in the lowest Kukebai Formation, probably indicating initial sea transgression in the Tarim Basin that took place in early Cenomanian. The distribution events of key dinocyst taxa such as the first occurrence of the H.difficileand the last occurrence of consistent occurrence ofLitosphaeridium siphoniphorum, indicate that the C/T boundary interval should be approximately 183 m deep in Core ZK 5–2, at the uppermost Middle Kukebai Formation.
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影响因子：
1.1
作者：
D. Corradini
通讯作者：
D. Corradini
影响因子：
1.5
作者：
P. Dodsworth;J. Eldrett
通讯作者：
P. Dodsworth;J. Eldrett
DOI：
10.54991/jop.1971.884
发表时间：
1971-12
期刊：
Journal of Palaeosciences
影响因子：
--
作者：
K. Jain;P. Millepied
通讯作者：
K. Jain;P. Millepied
晚始新世塔里木盆地西南缘历时海水退却
影响因子：
3
作者：
Windley, Brian F.;Zhang, Zhiliang;Fu, Bihong;Li, Shihu
通讯作者：
Li, Shihu
DOI：
10.1144/gsl.jgs.1956.112.01-04.20
发表时间：
1956-02
期刊：
Quarterly Journal of the Geological Society of London
影响因子：
--
作者：
C. Downie
通讯作者：
C. Downie