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Ch 6 Rocks

Ch 6 Rocks. Rock that forms when magma cools and hardens. Answer. Igneous Rock. Home. Igneous rock that is rich in feldspars and silica and generally light in color. Answer. Felsic Rock. Home. Zones of weakness in an ingneous rock structure. Answer. Joints. Home.

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Ch 6 Rocks

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  1. Ch 6 Rocks

  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. Clastic Rock Home

  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. Chemical sedimentary Rock . Home

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

  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. Cementation Home

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

  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

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