1. Igneous Rock Sedimentary Rock Metamorphic Rock Terms Grab Bag 100 200 300 400 500

2. Rock that forms when magma cools and hardens Answer

3. Igneous Rock Home

4. Igneous rock that is rich in feldspars and silica and generally light in color Answer

5. Felsic Rock Home

6. Zones of weakness in an ingneous rock structure Answer

7. Joints Home

8. Batholiths, laccoliths, and sills are all examples of this______ Answer

9. Intrusive igneous intrusions Home

10. Igneous rock that is rich in Fe and Mg and is generally dark in color Answer

11. Mafic Home

12. Sedimentary rock that is made up of rock fragments that become compacted or cemented together Answer

13. Home Clastic Rock

14. Layers and bed of sedimentary rock are examples of ________ Answer

15. Stratification Home

16. This structure forms when finer sediments settle on the bottom and large grains settle on the top Answer

17. Reverse grading Home

18. Lumps that have compositions different from the main body of rock Answer

19. Concretions Home

20. Forms when minerals precipitate from a solution or settle from a suspension Answer

21. Home. Chemical sedimentary Rock

22. Rocks that forms when existing rock is altered by forces of heat, pressure or chemical processes Answer

23. Metamorphic Home

24. Changes in temperature and pressure over a large area Answer

25. Regional metamorphism Home

26. This texture results when extreme pressure causes minerals in Metamorphic rock to realign, or when minerals separate our into dark and light bands Answer

27. Foliated Home

28. An example of a nonfoliated rock used as a building or sculpting material Answer

29. Marble Home

30. Rock texture in which minerals are arranged in planes or bands is called ________ Answer

31. Foliation Home

32. Answer Rocks from magma that cools deep inside Earth’s crust

33. Intrusive igneous Home

34. “lake of rock” when magma pushes the overlying rock layers into a dome Answer

35. Laccolith Home

36. Formations that spread over 100 km squared Answer

37. Batholiths Home

38. Process in which sediments are glued together by minerals deposited in water Answer

39. Home Cementation

40. Answer Rocks change from one type to another as a result of geologic forces and processes that are part of the ______

41. The Rock Cycle Home

42. A type of rock with vesicular texture Answer

43. Pumice Home

44. Texture with a mixture of large and small crystals Answer

45. Porphyritic Home

46. Forms from the remains of plants and animals Answer

47. Organic Sedimentary Home

48. Granite has large, well- developed crystals giving it what kind of texture? Answer

49. Coarse-grained texture Home

50. When magma forms by partial melting, which of the following mineral pairs melt first? Answer

51. Quartz/ feldspar Home