| "Digital Earth" provides a framework for integrating all of sub-disciplines of geosciences by some integrated tech-systems. The research work of geosciences can realize data integration and achievements communication through the link of the geo-spatial coordinates. After development of several tens years,GIS, the core tech-system of "Digital Earth" , plays comprehensive functions in managing and analyzing spatial data. Meanwhile, GIS can provide a mighty ability in visualization to researchers for understanding the spatial geometries and relationships of the objects. To some extent, GIS provides the visualization function in geo-spatial scientific computation. Supported by the modeling tools of GIS, the researchers can make a precise and effective study on geological structures by observing the geological structure from any directions and at any scale in a real 3D environment, and by analyzing the spatial data from any sources with other information in a comprehensive way.In consideration of the great potential of GIS in structural geology research and the unsolved issues in the Xingjiang Petroleum Company about the base structure and the cap-rock structure frame, a deep and systematic research has been carried out in this thesis on the surfacial and sub-surfacial information related with the Jungar Basin during the performance of "Project on Comprehensive Tectonics and Petroleum Exploration of The Jungar Basin" . The unsolved problems of the project are also further explored in the thesis, so that the basic arguments of structure geology research and the spatial analysis in GIS are combined tightly.By using GOCAD, the professional 3D modeling software, and two common GIS software, MapInfo and ArcView, the following progresses have been achieved in this thesis:1. The fundamental theory of GIS and its future development tendency are summarized and discussed. The subsurface 3D modeling theory and methods are also discussed. Some professional 3D modeling software are introduced. These theories and methods are applied for the structural analysis about the Jungar Basin, making a progress from qualitative description to quantitative analysis in tectonic research.2. By the professional 3D modeling software GOCAD, 15 cap-rock structure models are built. Benefited by its mighty function in the spatial data processing, the existing conflicts in the original data are solved. The latest structural data are generated.3. Based on the acquired structural data of the cap-rock and deep-seated geophysical exploration, a precise model of the folded basement of the Jungar Basin is built in the GOCAD. The precision of the model exceeds other data that came fromthe gravimetric and magnetic data. The model represents the geometrical configuration reasonably and accurately, and provides a credible support for the research of folded basement of the Jungar basin.4. By contrasting the geometry characters of the covering strata, the feature of all layers are explained. Five cross-sections of covering strata are made. Obtaining new cognitions about the tectonic phases and the evolution of the basin, six analogical groups of the covering strata are identified: Cenozoic layers (Nt1 and Et1); Cretaceous layers and Late Jurassic layers (Kt2, Kt1, Jt4 and Jt3 ); Late Triassic and middle Jurassic layers (Jt2, Jt1, Tt3); Early Triassic layer (TT3); Late Permian layers (Pt3, Pt22 and Pt2); Early Permian layers (Pt11 and Pt1).5. Based on the models of the covering strata and the folded basement, an inversional evolution about the basement history is successfully made. By analyzing the features of every tectonic phase in the basement evolution, the framework of the tectonic deformation and the pattern of the kinetics that is established. There are four tectonic phases during the folded base evolution based on the kinematical and kinetic features: Caledonian to Early Hercynian, with the characters of folded basement formation; Late Carboniferous to middle Permian, with the characters of thrusting from west to east; Late Permian to Late...
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