Geologic report - Shandong

I specialize in the study of crustal evolution and tectonic features of the Chinese continent, and have explored in depth the geology, stratigraphy and plate activity of Shandong Province. My research covers the crustal evolution of Shandong Province from the early Precambrian to the Miocene, focusing on the position of Shandong Province in the tectonic system of the Chinese continent and the complexity of its plate tectonic evolution.

1. Tectonic position and geologic background of Shandong Province

Shandong Province is located at the southern margin of the North China Plate and at the active continental margin of the eastern edge of the Eurasian Plate. By studying the tectonic units of Shandong Province, I explore the tectonic activity and crustal evolution of the region as part of the North China Craton during different periods of geologic history. Shandong Province is characterized by both stable ancient land masses and dramatic tectonic changes.

2. Division of crustal evolution stages

My study divides the geotectonic evolution of Shandong Province into four main stages:

•     Early Precambrian stage: This was the gradual transformation of the crust from immature to mature continental crust, accompanied by the collision and assembly of continental cores and micro land masses. The geological record of Shandong Province shows intense magmatic activity and tectonic deformation. 

•      Middle-Neoproterozoic Stage: This stage was dominated by continental rifting and convergence, and studies show that Shandong Province experienced large-scale intrusion of basaltic walls and formation of co-collisional granites during this period.

•     Paleoproterozoic stage: This stage marks the process of alternating changes between land and sea. The tectonic evolution of Shandong Province was influenced by the buttressing and collision of the North China Plate, the Yangzi Plate, and the Siberian Plate, and underwent the changes of early marine deposition and late continental uplift.

•     Mesozoic to Cenozoic: This is the period of tectonic regime change and lithospheric thinning. During the Middle to Late Jurassic in Shandong Province, due to the subduction of the Pacific Plate to the Eurasian Plate, the tectonic regime changed from extrusion to extension. The Cretaceous period was the peak of lithospheric thinning in East China, accompanied by intense magmatic activity, large-scale gold mineralization and basin collapse.

3. Geomorphology and geological features

The geomorphologic structure of Shandong Province largely reflects its complex tectonic background. The region includes mountainous and hilly areas composed of Precambrian and Mesozoic granites that exhibit a unique geotectonic pattern. My study analyzes the distribution and geological composition of the major mountain ranges in the central and southern mountains and eastern hills of Shandong Province, the formation of which is closely related to the tectonic activity of the North China Plate.

4. Plate tectonics and mineral resources

In my research, plate tectonic activities in Shandong Province not only influenced the geomorphologic development of the region, but also played a key role in the formation of mineral resources. In particular, during the Cretaceous period, Shandong Province experienced lithospheric thinning and intense magmatic activity, which created conditions for the formation of large-scale gold deposits. I explore the connection between these tectonic processes and the abundant mineral resources of Shandong Province, especially in terms of the mineralization of the Jiaodong Peninsula gold belt.

Significance of the study

Through my research on the geology and tectonics of Shandong Province, I am committed to revealing the complex relationship between crustal evolution and plate tectonics. This not only deepens our understanding of the geological history of mainland China, but also provides a scientific basis for mineral resource exploration and geologic disaster assessment. Through these studies, I hope to further promote the development of geoscience, especially its application in the field of global tectonic evolution and resource management.

The following link will give you access to the report：

https://docs.google.com/document/d/1OLdIPnWt32lRNzJMsU4vjnC7rFl6xK0ic9Kwn6WvUqw/edit?usp=sharing