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CH 6 Rocks & Rock Cycle

CH 6 Rocks & Rock Cycle. Quiz Review. Plagioclase feldspar, biotite , pyroxene, amphibole, and olivine are common minerals in felsic / mafic igneous rocks. mafic. Rocks are composed of _____________. More than one mineral.

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CH 6 Rocks & Rock Cycle

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  1. CH 6 Rocks & Rock Cycle Quiz Review

  2. Plagioclase feldspar, biotite, pyroxene, amphibole, and olivine are common minerals in felsic/mafic igneous rocks.

  3. mafic

  4. Rocks are composed of _____________.

  5. More than one mineral

  6. ___________ is intrusive, coarse-grained, and felsic, while ______________ is extrusive, fine-grained, and mafic. • Basalt • Shale • Granite • Marble

  7. Granite, Basalt

  8. In the rock cycle, rocks are classified by ___________.

  9. How they form

  10. A non-foliated metamorphic rock formed from quartz sandstone is __________.

  11. quartzite

  12. Felsic/mafic rocks are high in iron and magnesium.

  13. mafic

  14. Shale is a(n) ______________ rock.

  15. Sedimentary

  16. Stratification, fossils, ripple marks, mud cracks, nodules, concretions, and geodes are found in _________________ rocks.

  17. sedimentary

  18. Which of the following pairs includes a metamorphic rock & its parent rock? • Slate & obsidian • Granite & limestone • Gneiss & marble • Slate & shale

  19. Slate & shale

  20. A ___________ any rock mass that forms when magma pushes into fractures (cracks) in the bedrock

  21. pluton

  22. Bioclastic rocks form from ________________.

  23. The remains of plants or animals

  24. A rock that is light in color and low in density would be felsic/mafic.

  25. Felsic

  26. Shells are often found in which rock?

  27. Limestone (coquina)

  28. An porphyry is an igneous rock that has _________ very different crystal sizes (textures). • Ex. Large crystals in a fine groundmass

  29. two

  30. Intrusive igneous rocks have ____________ texture & extrusive igneous rocks have ____________ texture.

  31. Intrusive –coarse or very coarse, non-vesicular • Extrusive—glassy or fine, vesicular or non-vesicular

  32. A felsic rock that has holes and fine-grained crystals is _____________.

  33. Vesicular rhyolite

  34. Gabbro is a(n) _________ rock

  35. igneous

  36. The grain size for sand is ________.

  37. 0.006 to 0.2 cm

  38. Felsic/mafic rocks are high in aluminum.

  39. felsic

  40. ____________ shows platy mica crystal visible from metamorphism of clay or feldspars.

  41. schist

  42. Potassium feldspar, quartz, plagioclase feldspar, biotite, and amphibole are common minerals in felsic/mafic igneous rocks.

  43. felsic

  44. Which igneous rock is intrusive and have a very coarse, non-vesicular texture?

  45. pegmatite

  46. Foliated metamorphic rocks can show __________ or ____________ textures.

  47. Mineral alignment or banded

  48. Minerals precipitating out of water or being left behind when water evaporates form __________________ sedimentary rocks.

  49. chemical

  50. What is the main difference between conglomerate and breccia?

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