24. Sediments are loose, unconsolidated accumulations of mineral rock particles that have been transported by wind, water, ice, or gravity and redeposited. Derived from the Latin sedimentum means settling, reference to a solid material settling out of a fluid.
27. usually, the particle are broken down further during this transport phase.
28.
29. formed from the products of the mechanical breakup of other rocks.
30.
31. other major energy sources (petroleum and natural gas) occur in pores of sedimentary rocks.
32.
33.
34. the rock is called conglomerate if the sediment is rounded.
35.
36.
37.
38. Chalk– soft, porous rock made up almost entirely of the hard parts of microscopic organisms. Travertine – type of limestone that decorates taverns.
60. a most useful rock for roof and floor tile, chalkboards, and billiard tables.
61. can be almost of any color, depending on its mineral constituents.
62.
63. Schists– strongly foliated rocks, formed by regional metamorphism. - Platy and can be readily split into thin flakes or slabs.
64. Nonfoliated Rocks Marble – a coarse, crystalline rock whose parent rock is limestone. - Composed of large interlocking calcite crystals, which formed from crystallization of smaller grains in the parent rock.
65. Quartzite – a very hard metamorphic rock most often formed from quartz and sandstone.
66.
67. Helps to understand the origin of igneous, sedimentary, and metamorphic rocks.
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