I HATE THIS CLASS - Sedimentary rocks

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17 Terms

1
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<ol><li><p>detrital/clastic</p></li><li><p>gravel &gt; 2mm</p></li><li><p>rounded rock fragments and mineral grains </p></li></ol><p></p>

  1. detrital/clastic

  2. gravel > 2mm

  3. rounded rock fragments and mineral grains

Conglomerate

2
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<ol><li><p>detrital/clastic</p></li><li><p>gravel &gt; 2mm</p></li><li><p>angular rock fragments and mineral grains </p></li></ol><p></p>

  1. detrital/clastic

  2. gravel > 2mm

  3. angular rock fragments and mineral grains

Breccia

3
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<ol><li><p>detrital/clastic</p></li><li><p>sand 1/16mm-2mm</p></li><li><p>Abundant feldspar, rock fragments and mineral grains</p></li></ol><p></p>

  1. detrital/clastic

  2. sand 1/16mm-2mm

  3. Abundant feldspar, rock fragments and mineral grains

Arkose sandstone 

4
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<ol><li><p>detrital/clastic</p></li><li><p>sand 1/16mm-2mm</p></li><li><p>mostly quartz grains, grains oftan rounded</p></li></ol><p></p>

  1. detrital/clastic

  2. sand 1/16mm-2mm

  3. mostly quartz grains, grains oftan rounded

Quartz sandstone

5
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<ol><li><p>detrital/clastic</p></li><li><p>sand 1/16mm-2mm</p></li><li><p>Abundant rock fragments, quarts and mineral grains</p></li></ol><p></p><p></p>

  1. detrital/clastic

  2. sand 1/16mm-2mm

  3. Abundant rock fragments, quarts and mineral grains

Lithic sandstone

6
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<ol><li><p>detrital/clastic</p></li><li><p>clay/silt &lt;1/16 m</p></li><li><p>mostly clay minerals</p></li></ol><p></p>

  1. detrital/clastic

  2. clay/silt <1/16 m

  3. mostly clay minerals

Shale 

7
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<ol><li><p>chemical&nbsp;</p></li><li><p>biochemical</p></li><li><p>&nbsp;brown, visible plant fragments, easily fragmented&nbsp;</p></li><li><p>plant fragments&nbsp;</p></li></ol><p></p>

  1. chemical 

  2. biochemical

  3.  brown, visible plant fragments, easily fragmented 

  4. plant fragments 

Peat

8
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<ol><li><p>chemical&nbsp;</p></li><li><p>biochemical</p></li><li><p>brown, to brownish black, brittle, sooty</p></li><li><p>carbonized plant fragments</p></li></ol><p></p>

  1. chemical 

  2. biochemical

  3. brown, to brownish black, brittle, sooty

  4. carbonized plant fragments

Lignite

9
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<ol><li><p>chemical&nbsp;</p></li><li><p>biochemical</p></li><li><p>black to dark brown, brittle, fine bands, dull and shiny</p></li><li><p>carbonized plant fragments</p></li></ol><p></p>

  1. chemical 

  2. biochemical

  3. black to dark brown, brittle, fine bands, dull and shiny

  4. carbonized plant fragments

Bituminous coal

10
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<ol><li><p>chemical&nbsp;</p></li><li><p>biochemical</p></li><li><p>fossilized shell in a fine grained matrix</p></li><li><p>calcite, limestone</p></li></ol><p></p>

  1. chemical 

  2. biochemical

  3. fossilized shell in a fine grained matrix

  4. calcite, limestone

Fossiliferous limestone

11
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<ol><li><p>chemical&nbsp;</p></li><li><p>biochemical</p></li><li><p>well sorted hash of shell fragments, porous, little visible matrix or cement&nbsp;</p></li><li><p>calcite, limestone</p></li></ol><p></p>

  1. chemical 

  2. biochemical

  3. well sorted hash of shell fragments, porous, little visible matrix or cement 

  4. calcite, limestone

Coquina

12
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<ol><li><p>chemical&nbsp;</p></li><li><p>biochemical</p></li><li><p>microscopic shells, powdery</p></li><li><p>calcite, limestone</p></li></ol><p></p>

  1. chemical 

  2. biochemical

  3. microscopic shells, powdery

  4. calcite, limestone

Chalk

13
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<ol><li><p>chemical&nbsp;</p></li><li><p>biochemical</p></li><li><p>dull appearance, dense</p></li><li><p>calcite, limestone</p></li></ol><p></p>

  1. chemical 

  2. biochemical

  3. dull appearance, dense

  4. calcite, limestone

Micrite

14
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<ol><li><p>chemical&nbsp;</p></li><li><p>inorganic&nbsp;</p></li><li><p>spherical grains ooids </p></li><li><p>limestone</p></li></ol><p></p>

  1. chemical 

  2. inorganic 

  3. spherical grains ooids

  4. limestone

Oolitic Limestone

15
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<ol><li><p>chemical&nbsp;</p></li><li><p>inorganic&nbsp;</p></li><li><p>Microcrystalline, often waxy appearance, conchoidal fracture,&nbsp;harder than glass, varies in color</p></li><li><p>quartz</p></li></ol><p></p>

  1. chemical 

  2. inorganic 

  3. Microcrystalline, often waxy appearance, conchoidal fracture, harder than glass, varies in color

  4. quartz

Chert

16
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<ol><li><p>chemical&nbsp;</p></li><li><p>inorganic&nbsp;</p></li><li><p>softer than fingernail, sugary appearance</p></li></ol><p></p>

  1. chemical 

  2. inorganic 

  3. softer than fingernail, sugary appearance

Rock Gypsum

17
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<ol><li><p>chemical&nbsp;</p></li><li><p>inorganic&nbsp;</p></li><li><p>crystalline, salty taste, softer than glass</p></li><li><p>Halite</p></li></ol><p></p>

  1. chemical 

  2. inorganic 

  3. crystalline, salty taste, softer than glass

  4. Halite

Rock salt