Journal of Geology & Geophysics
Open Access
ISSN: 2381-8719
ISSN: 2381-8719
Feifei Liu
China University of Petroleum, China
Posters & Accepted Abstracts: J Geol Geophys
Lingshan Island, with a height of 513.6 metres above sea level, is the highest island in Northern China. It��?s located in the Yellow Sea, from the southeast of Huangdao District, Qingdao, Shandong Province, China. The island is among the Sulu Orogenic Belt between the South China Block and North China Block. Therefore, the island is very important on the regional tectonics; and some studies about structural and sedimentary characteristics of the island have been reported, but its origin characteristics and type are seldom shown so far in the geological literatures. Through field geological investigation, the whole lithostratigraphy in the Lingshan Island belonged to the distal turbidites, inter-bedded with multiple periods of volcano clastic rocks. Zircon U-Pb dating of rhyolite sample in Lingshan Island showed that the ages concentrated into 108~126 Ma, in the Early Cretaceous of the Mesozoic. It was originally formed when the North China plate and the Yangtze plate collided. In the later stage, it has been under the influence of interaction between the Pacific plate and Philippine plate and their movement against the Eurasia. From the viewpoint of geodynamics, it is revealed that the Lingshan Island was formed by multiple dynamic processes including tectonism and magmatism (both volcanism and intrusion). The results are helpful to the understanding of formation and sedimentation as well as hydrocarbon generation and accumulation in the adjacent basins.
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