Sedimentary Rocks

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Sedimentary Rocks
JEOPARDY
With special hosts You !!! (and your friendly
teacher)
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The Board
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Wild Rock 100

• (Name the S.Rock) Type- Clastic, mostly
  coarse-grained particles (grains) with rounded
  edges.
• Answer- What is, a Conglomerate.
• Return to game board

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Wild Rock 200

• (Name the S.Rock) Type- Chemical, formed from
  previously water-dissolved minerals Used in
  industry to make cement for construction.
• Answer- What is, Limestone.
• Return to game board

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Wild Rock 300

• A large sedimentary rock (50 cm across) has only
  1 fossil in it. The fossil is large (a snail
  shell). The most likely Type of SRock is
• Answer- What is, a Clastic SRock. (Unlikely to be
  evaporite, and definitely not an organic rock if
  it only has 1 fossil regardless of size)
• Return to game board

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Wild Rock 400

• The most common organic material in bituminous
  coal.
• Answer- What is, materials from plants.
• Return to game board

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Wild Rock 500

• (Choose Easily / with difficulty) Granite (an
  igneous rock) weathers chemically(choose)
• Answer- What is, very Easily. (chemical bonds
  among particles are weak, after dissolved,
  particles break off)
• Return to game board

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Composition 100

• Type of SRocks classified on the basis of the
  kind of materials precipitated.
• Answer- What is, chemical SRocks.
• Return to game board

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Composition 200

• The cement in a SRock has a chemical
  composition that includes Fe2O3. The iron oxide
  came from ______________ and cemented the
  clastic particles.
• Answer- What is, dissolved iron oxide
  precipitated out of groundwater.
• Return to game board

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Composition 300

• (Name the rock). Biochemical (organic) SRock
  composed mainly of loosely cemented, large,
  easily seen shell fragments.
• Answer- What is, COQUINA.
• Return to game board

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Composition 400

• The relative porosity of SRocks composed of very,
  very fine particles.
• Answer- What is, VERY LOW POROSITY
• Return to game board

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Composition 500

• About the composition of Shale (particle size,
  origin of particles).
• Answer- What is, very small particles (the
  smallest), clastic origin.
• Return to game board

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About the particles 100

• There are 2 types of limestones Crystalline
  limestone and fossiliferous limestone. Because of
  the origin of the particles, Crystalline
  limestone is classified as this type of SRock.
• Answer- What is, Chemical SRock (particles have
  been weathered by chemical means). Fossiliferous
  limestone is an Organic SRock.
• Return to game board

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About the particles 200

• The large particles that compose a particular
  clastic rock are most likely to have been
  transported by..
• Answer- What is, erosion by water (stream) or
  even glacial ice. (generally wind moves smaller
  particles only)
• Return to game board

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About the particles 300

• The maximum particle size that will cause clastic
  SRocks to be classified as made of Medium
  particles (such as sandstone) or Large particles
  (such as breccias and conglomerates).
• Answer- What is, 2 mm
• Return to game board

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About the particles 500

• A composition of large particles, regardless of
  their origin will result in this level of
  porosity.
• Answer- What is, High Porosity.
• Return to game board

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About the particles 400

• A graded-bedding results when particle deposition
  has followed this pattern.
• Answer- What is, when coarser/heavier particles
  have deposited first, followed by progressively
  finer/lighter particles.
• Return to game board

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Weathering Erosion 100

• If major metamorphic processes have not occurred
  in a particular region, the most likely type of
  rocks that are weathered/eroded as source of
  materials for SRocks at such place are..
• Answer- What are, igneous rocks, specifically
  those formed from lava.
• Return to game board

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Weathering Erosion 200

• Weathering and erosion usually contribute to
  damage and destroy fossils that are close to the
  surface. A process that usually contributes to
  protect these fossils is.
• Answer- What is, burial under fine particles.
• Return to game board

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Weathering Erosion 400

• The steps involved in SRock formation
• Answer- What are, weathering/erosion, deposition,
  compaction, lithification.
• (one could also say burial, but since deposition
  is continues, burial is implied)
• Return to game board

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Weathering Erosion 500

• A sedimentary formation in which
  erosion/deposition have resulted in the formation
  of inclined layers is said to have a certain type
  of bedding.
• Answer- What is, cross bedding.
• Return to game board

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Weathering Erosion 300

• The angular edges of large particles in breccias
  (a clastic SRock) suggest this type of erosional
  force.
• Answer- What is, Particles were transported only
  a short distance. Most likely a landslide (not
  underwater), or a flash flood, and subsequent
  deposition of additional finer particles.
• Return to game board

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Definitions 300

• Calcite
• Answer- What is, Chemical SRock made of CaCO3
  (calcium carbonate).
• Also, the cement around certain SRocks.
• Return to game board

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Definitions 400

• Evaporites
• Answer- What are, Chemical SRocks made when
  minerals dissolved in water crystallized after
  water evaporated.
• Return to game board

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Definitions 500

• Chalk (in geology, not in old classrooms)
• Answer- What is, a white, soft organic SRock
  made almost entirely of the hard parts of
  microscopic ancient microorganisms.
• Return to game board

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Definitions 200

• Halites
• Answer- What are, Chemical SRocks made of NaCl
  (Halites are also called rock salt)
• Return to game board

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Definitions 100

• The other name for a type of SRock is detrital.
  Say the other name and define detritus.
• Answer- What are, Clastic SRocks. Detritus is
  used to describe the particles that are weathered
  off other rocks, such as igneous rocks (or any
  rock for that matter).
• Return to game board

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Wild Rock 300

• Anthracite coal is a black metamorphic rock. The
  names of 2 types of coal that are sedimentary
  rocks are
• Answer- What are, Lignite (soft, brown coal,
  moderate energy) and bituminous coal (hard, black
  coal, high energy)
• Return to game board