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Formation Mechanism of Reduction Spheroids with Dark Cores in Cretaceous Red Beds in Jiaolai Basin, China
Liaoning Technical University, Fuxin, China
Liaoning Technical University, Fuxin, China
Shandong University of Science and Technology, Qingdao, China
Shandong Institute of Geological Survey, Jinan, China
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China
Bureau of Geophysical Prospecting INC., China National Petroleum Corporation, Zhuozhou, China
Liaoning Technical University, Fuxin, China
Liaoning Technical University, Fuxin, China
Laboratory of Paleomagnetism and Tectonic Reconstruction of Ministry of Natural Resources, Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China
- 1 Liaoning Technical University, Fuxin, China
- 2 Liaoning Technical University, Fuxin, China
- 3 Shandong University of Science and Technology, Qingdao, China
- 4 Shandong Institute of Geological Survey, Jinan, China
- 5 Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China
- 6 Bureau of Geophysical Prospecting INC., China National Petroleum Corporation, Zhuozhou, China
- 7 Liaoning Technical University, Fuxin, China
- 8 Liaoning Technical University, Fuxin, China
- 9 Laboratory of Paleomagnetism and Tectonic Reconstruction of Ministry of Natural Resources, Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China
Open Journal of Geology·Volume 09 (2019)·Pages 707–710·Published 20 September 2019·DOI10.4236/ojg.2019.910081
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Abstract
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 TFe 3 O 4 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.
KeywordsRed BedsReduction SpheroidsFormation MechanismJiaolai BasinEastern China
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