Term
| Clastic (Siliclastic) Rocks |
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Definition
| bit and pieces of other rocks fragments and mineral grains deposited and cemented together, typically silicates |
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Term
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Definition
| Sediments including twigs, shells, and leaves, which are born by organic processes and then deposited and/or cemented together |
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Term
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Definition
| crystals precipitated from water, often forming as an evaporite deposit |
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Term
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Definition
(grain size)
grains larger than 2 mm in diameter |
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Term
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Definition
(grain size)
grains are 1/16 mm to 2 mm in diameter |
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Term
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Definition
(grain size)
-too small to see, but you can still feel them |
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Term
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Definition
(grain size)
are too small to see and too small to feel/feel smooth |
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Term
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Definition
-clearly visible crystals
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Term
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Definition
| crystals too small to identify, grow together |
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Term
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Definition
| -a mixture of many different sizes of grains |
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Term
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Definition
| grains that are of a similar size/and or density |
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Term
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Definition
-0 to ~25 mm grain sizes
-Most abundant grain size: Gravel
-Poorly sorted
-Angular grains
-Rock fragments in clasts
Silicicastic
-Environments: Cliff, Stream
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Term
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Definition
-transluscent grey, white
-texture: crystalline/waxy
-salty
-chemical rock
-environment: evaporating basin |
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Term
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Definition
-Black
-Smooth
-Bioclastic/Biochemical
-environment: peat bog |
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Term
[image]
MICRITIC LIMESTONE |
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Definition
-Clay sized grains
-well-sorted
-Most abundant grain size: mud
-effervesces
-bioclastic/biochemical rock
-environment: lagoon |
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Term
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Definition
-white/tan
-lumpy, and conical (or not)
-effervesces
-chemical rock
-environment: cave
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Term
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Definition
-less than 1 mm to 30 mm grain sizes
-Most abundant grain size: gravel
-poorly sorted
-subangular/subround
-larger clasts: rock fragments
-siliciclastic
-environments: cliff, stream |
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Term
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Definition
-white/light grey
-smooth, dusty
-Most abundant grain size: clay
-effervesces
-bioclastic/biochemical
-environment: deep seafloor |
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Term
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Definition
-Most abundant grain size: sand
-well sorted
-well rounded grains
-Clasts: mineral fragments
-Siliciclastic rock
-environment: beach, dune
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Term
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Definition
-Grey and red
-layered texture
-heavy
-chemical rock
-environment: shoals/lagoon |
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Term
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Definition
-Most abundant grain size: gravel
-moderately sorted
-angular clasts
-Clasts: shell pieces
-effervesces
-bioclastic/biochemical
-environment: continental slope
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Term
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Definition
-two most abundant grain sizes: silt and clay sized
-moderately sorted
-mineral fragments
-siliciclastic
-environment: stream |
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Term
[image]
OOLITIC LIMESTONE |
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Definition
-Grain size: sand
-well-sorted
-well-rounded grains
-effervesces
-chemical rock
-environment: shoal |
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Term
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Definition
-grey/white/tan color
-layered/fibrous/platy texture (WTF...)
-2 hardness
-chemical rock
-environment-evaporating basin
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Term
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Definition
-grain size: sand
-moderately sorted
-subangular/subround grains
-mineral fragments
-siliciclastic rock
-environment: stream, dune |
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Term
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Definition
-Grain size: Clay
-well sorted
-siliciclastic
-environment: delta/floodplain
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Term
[image]
FOSSILIFEROUS LIMESTONE |
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Definition
-Grain size: gravel
-poorly sorted
-angular clasts
-clasts: shells
-effervesces
-biochemical rock
-environment: reef |
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Term
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Definition
-white
-feels dusty and smooth
-grain size: clay
-No reaction (even though it did fricken react)
-siliciclastic
-environment: deep seafloor |
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Term
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Definition
-Grain size: clay
-well sorted
-no HCL reaction
-HCl reaction when powdered
-chemical rock
-environment: evaporating basin
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Term
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Definition
-grain size: silt
-well sorted
-siliciclastic
-delta/floodplain
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Term
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Definition
-grain size: clay
-clasts: clay
-No HCl reaction
-7 on hardness scale
-chemical rock
-environment: deep seafloor
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Term
-Breccia
-Conglomerate
-Greywacke
-Arkose Sandstone
-Quartz Sandstone
-Siltstone
-Shale
-Claystone |
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Definition
All siliciclastic rocks
(list of 8) |
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Term
-Fossiliferous limestone
-Coquina
-Micritic Limestone
-Chalk
-Bituminous Coal
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Definition
All biochemical rocks
(list of 5) |
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Term
-Rock gypsum
-rock salt
-ironstone
-oolitic limestone
-travertine
-dolostone
-chert |
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Definition
Chemical rocks
(list of 7) |
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