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Name: Yehua SHAN (单业华)
Position: Research Professor
Department: Laboratory of Marine Sea Geology
Email: shanyh@gig.ac.cn

Research

My research mainly involves mathematic aspects of structural geology, such as paleostress analysis, strain analysis, and numerical modeling. I take special interest in developing novel algorithms and mathematical models and applying them either for better estimation of parameter(s) or for knowledge unattainable by established models. I am also interested in the regularity of deformation structures including joints, veins, boudinages, stylolites, folds, and so forth, the characterization of brittle fractures, and the diversity of flow structures in dykes, particularly in felsic dykes, a rare phenomenon that we recently discovered in the Jiaodong peninsula, northern China. Current projects include numerical simulation of metallogeny during the evolution of the Altaids orogen, and the deformation history of the southern Taiwan orogen. 
 

Research Interests：

Recent Publications：
1. Shan, Y., Xiao, W., 2011. A new macroscopic method of fabric analysis based upon Fresnel theorem. Journal of Structural Geology 33(9), 1325–1333.
2. Shan, Y., Xiao, W., 2011. A statistical examination of the Fry method of strain analysis. Journal of Structural Geology 33(5), 1000–1009.
3. Shan, Y., Tian, Y., Xiao, W., 2011. Inversion of stress from polyphase fault/slip data with or without low diversity: an updated version of INVSFS. Computer & Geosciences 37, 1045–1053.
4. Tian, Y., Shan, Y., 2011. The diversity of flow structures in felsic dykes. Journal of the Geological Society 168, 1001–1011.
5. Shan, Y. Tian, Y., Xiao, W., 2009. Incorporating imaginary faults in graphical stress methods. Journal of Structural Geology 31(4): 366–368.
6. Shan, Y., Norman Fry, N., Lisle, R.J., 2009. Graphical construction for the direction of shear. Journal of Structural Geology 31(5): 476–478.
7. Shan, Y., Li, Z., 2008. Feasibility of graphic determination of stress from fault/slip data. Journal of Structural Geology 30(6): 739–745.
8. Shan, Y., Gong, F., Li, Z., Lin, G., 2008. Determination of relative strain ellipsoids from sectional measurements of stretch lineation. Journal of Structural Geology 30(5): 682–686.
9. Shan, Y., 2008. An analytical approach for determining strain ellipsoids from measurements on planar surfaces. Journal of Structural Geology 30(4): 539–546.
10. Shan, Y., Gong, F., Li, Z., Lin, G., 2007. A grid-search inversion method looking for the best classification of polyphase fault/slip data. Tectonophysics 433(1-2): 53–64.
11. Shan, Y., Fry, N., 2006. The moment method used to infer stress from fault/slip data in sigma space: invalidity and modification. Journal of Structural Geology 28(7): 1208–1213.
12. Shan, Y., Liu, L., Peng, S., 2006. Discrimination of two planar structures in directional data. Mathematical Geology 38(3): 375–388.
13. Shan, Y., Lin, G., Li, Z., Zhao, C., 2006. Influence of measurement errors on stress estimated from single-phase fault/slip data. Journal of Structural Geology 28(6): 943–952. 
 
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