Figure 2

Geological diagram of slope on the left side of spillway tunnel exit. 1. Alluvial layer: 2. Diluvial layer: 3. Colluvial layer; 4. Slope collapse layer: 5. Dengying Group, Sect. 1:6. Dengying Group, Sect. 2; 7. Guanyinya Formation; 8. Snow Group (Left bank); 9. Paragraph 10 of the snowfall group; 10. Snow Group, paragraph 9; 11. Snow Group, paragraph 8; 12. Snow Group, paragraph 7; 13. Snow Group, paragraph 6; 14. Snow Group, para. 5; 15. Paragraph 4 of the snowfall group; 16. Unconformable stratigraphic boundary: 17. Lithologic boundary: 18. Geological fault and number: 19. Excavation line; 20. Opening line; 21. One thousand one level block and number; 22. Section lines and numbering.