A New Understanding of the Sedimentary Environment of the Laiyang Group in the Lower Cretaceous of Lingshan Island, Shandong Province, East China
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We would like to thank Dr. Xi Chen, who majored in geology at the Imperial College London, for her great efforts in refining the English language of the manuscript. We also thank the editor and the anonymous reviewers for their review and suggestions that improved this manuscript extensively. This work is supported by the Fund from the Key Laboratory of Stratigraphy and Palaeontology, Ministry of Natural Resources (Grant No. KLSP 190102) and the Graduate Scientific and Technological Innovation Project Financially Supported by Shandong University of Science and Technology (Grant No. SDKDYC 190104).

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    Abstract:

    The sedimentary background and sedimentary environment of the Lower Cretaceous of Lingshan Island, Shandong, remain unclear. There is considerable controversy as to whether the sedimentary environment was marine or continental. In this study, analyses were conducted with respect to indicators of paleosalinity, the chemical composition of clay, paleobiota, the characteristics of strata exhibiting salinization in eastern China during the Early Cretaceous, and the relationship between paleosalinity and paleoclimate. The results indicate that the sedimentary environment of the Lower Cretaceous Laiyang Group of Lingshan Island was that of a salified lake rather than a marine environment. This study not only provides a reference for determining the sedimentary environment of the Lower Cretaceous Laiyang Group of Lingshan Island but also offers a new perspective for the study of Cretaceous strata with salinization characteristics in eastern China.

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ZHANG Xiangyu, LI Shoujun, ZHAO Xiuli, GENG Geng, YAN Mingming.2020. A New Understanding of the Sedimentary Environment of the Laiyang Group in the Lower Cretaceous of Lingshan Island, Shandong Province, East China[J]. Acta Geologica Sinica(),94(5):1325-1338

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History
  • Received:February 14,2019
  • Revised:December 02,2019
  • Online: October 26,2020
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