Author(s)

Yu Yang¹, Wenzhao Fu^1*, Jifeng Yu², Zhenguo Ning³, Jianjun Cui^4,5, Qing Li⁶, Xuelei Wang¹, Xizhun Zhuo¹

¹Liaoning Technical University, Fuxin, China.
²Shandong University of Science and Technology, Qingdao, China.
³Shandong Institute of Geological Survey, Jinan, China.
⁴Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China.
⁵Laboratory of Paleomagnetism and Tectonic Reconstruction of Ministry of Natural Resources, Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China.
⁶Bureau of Geophysical Prospecting INC., China National Petroleum Corporation, Zhuozhou, China.

Red beds are not entirely red sometimes, in which grey-green spheroids or irregular spots can be found. However, the formation mechanism of grey-green spheroids or irregular spots in red beds is not clear so far. Samples taken from well JK1 in Jiaozhou area of Jiaolai Basin displayed that the reduction spheroids have more Vanadium (V) element, less TFe₃O₄ and Lead (Pb) element, almost the same content of other elements such as FeO and so on, comparing the red parts of the samples. The existence of organisms can explain the existence of green reductive spheres in the red beds formed under the oxidation environment.

Red Beds, Reduction Spheroids, Formation Mechanism, Jiaolai Basin, Eastern China

Yang, Y. , Fu, W. , Yu, J. , Ning, Z. , Cui, J. , Li, Q. , Wang, X. and Zhuo, X. (2019) Formation Mechanism of Reduction Spheroids with Dark Cores in Cretaceous Red Beds in Jiaolai Basin, China. Open Journal of Geology, 9, 707-710. doi: 10.4236/ojg.2019.910081.