4. FELSIC ROCKS: texture Intrusive Extrusive Muy extrusive GraniteRhyoliteObsidian

5. Yosemite Valley: El Capitan Intrusive: slow cooling, large texture

6. ARROWHEADS Extrusive: fast cooling, fine texture

7. Igneous Rock Types Figure 11.7

11. SLATE Because slate easily flakes, it’s ideal for Floors, roofs, blackboards.

12. GNEISS Gneiss is characterized by a banded or foliated pattern. Granite is a precursor rock to gneiss

13. Stress and Strain

14. Folding Figure 12.8

17. Normal fault Footwall moves Up relative to Hanging wall Tension forces FOOTWALL HANGING WALL

18. NORMAL FAULT

21. Reverse Fault

24. Strike-slip Fault

25. San Andreas Fault Figure 12.12