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Thread: Need Help in crossword puzzle earth science :(

  1. #1 Need Help in crossword puzzle earth science :( 
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    • . The most common igneous rock on earth; the volcanic equivalent of gabbro.
    • 2. Arkose sandstone is an example of a rock whose sediment formed - - - - the source.
    • 3. Terminology which described minerals in igneous rocks which are high in iron and magnesium.
    • 4. Well-sorted sediment produced by much transport typically has this shape.
    • 7. Rapid cooling of molten rock at the earth's surface typically produces these size crystals.
    • 9. The chief culprit for the decay of carbonate rocks used in urban public buildings (2 words).
    • 10. Metamorphic rock composed of a calcium carbonate mineral (usually does not weather well.)
    • 14. Type of rock which originates in the molten state, deep within the earth.
    • 15. Metamorphic rock derived from shale, has a smooth texture that makes a good writing surface.
    • 16. Felsic, plutonic igneous rock, whose interlocking crystals make it a great building stone.
    • 17. Terminology describing igneous rocks which originate deep within the earth.
    • 19. Type of weak acid responsible for chemical weathering of rocks such as marble.
    • 21. Very fine crystals (or the lack of crystals) is caused by this rate of cooling of molten rock.
    • 24. Earth's most common sedimentary rock; its abundance is explained by the large source of clay minerals.
    • 25. Molten rock which contains dissolved gases (trapped which still below ground).
      26. The rate of cooling of magma determines only this property of the crystals in an igneous rock.

      • . Rocks typically formed at or near the surface of the earth.
      • 6. The shape of sediment grains which indicates that it did not travel very far from the source.
      • 8. Type of rock which originates from the earth's interior, reaching the surface.
      • 11. The volcanic equivalent of granite (i.e., has the same general mixture of minerals).
      • 12. Collective name for very fine-grained sediment, typically forming shales.
      • 13. Fossils such as those found in sedimentary rocks, are evidence of ancient - - - -.
      • 16. The plutonic equivalent of basalt (same mineral composition, but with a texture due to slow cooling).
      • 18. Name of rock formed usually by the remains of ancient sea creatures.
      • 20. The main constituent of a good piece of sandstone.
      • 22. Naturally occurring, solid, inorganic substance having an internal atomic arrangement.
      • 23. Slow cooling of deeply buried molten rock produces crystals of this size.
      • 26. The term used to describe the degree of uniformity of grain size in a sedimentary rock.
      • 27. Minerals rearranged into this pattern, due to extreme pressure from regional metamorphism.
      • 28. Rock type made by heat and/or pressure great enough to alter a parent rock of any type.


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  3. #2  
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    This seems to be a homework problem. Most if not all of these could be found by googling key words in the crossword clue. You will learn a lot more if you do this than if somebody else does it for you.


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  4. #3  
    Universal Mind John Galt's Avatar
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    If you are still having difficulties after following Harold's suggestion tell me what they are and what you have done to try to resolve them and I shall point you in the right direction.
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