Sedimentary - UTEP Geological · PDF fileof Sedimentary Particles Name Gravel Sand Silt Mud*...

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10/27/14 1 GEOL 1401 Sedimentary Rocks Sedimentary Rocks - Comes from preexisting rocks (from rocks sediments) - Detrital sediments : Particles derived by weathering Chemical sediments : Minerals extracted from solutions (seawater) by : Inorganic processes Organic processes (processes that break down rocks into smaller pieces)

Transcript of Sedimentary - UTEP Geological · PDF fileof Sedimentary Particles Name Gravel Sand Silt Mud*...

Page 1: Sedimentary - UTEP Geological · PDF fileof Sedimentary Particles Name Gravel Sand Silt Mud* Clay *Mud is a mixture of silt and clay-sized particles Siltstone is made from silt particles

10/27/14 

GEOL 1401 Sedimentary Rocks

Sedimentary Rocks - Comes from preexisting rocks (from rocks sediments)

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Detrital sediments: Particles derived by weathering

Chemical sediments: Minerals extracted from solutions (seawater) by : Inorganic processes Organic processes

(processes that break down rocks into smaller pieces)

Page 2: Sedimentary - UTEP Geological · PDF fileof Sedimentary Particles Name Gravel Sand Silt Mud* Clay *Mud is a mixture of silt and clay-sized particles Siltstone is made from silt particles

10/27/14 

Sedimentary Rocks Weathering takes place when some process breaks a parent material into smaller pieces.

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Sedimentary Rocks - Three important processes takes place during the formation of sedimentary rocks:

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1. Transportation 2. Deposition 3. Lithification

Page 3: Sedimentary - UTEP Geological · PDF fileof Sedimentary Particles Name Gravel Sand Silt Mud* Clay *Mud is a mixture of silt and clay-sized particles Siltstone is made from silt particles

10/27/14 

Sedimentary Rocks - Three important processes takes place during the formation of sedimentary rocks:

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1. Transportation 2. Deposition 3. Lithification

Sedimentary Rocks Examples:

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Page 4: Sedimentary - UTEP Geological · PDF fileof Sedimentary Particles Name Gravel Sand Silt Mud* Clay *Mud is a mixture of silt and clay-sized particles Siltstone is made from silt particles

10/27/14 

Sedimentary Rocks Examples:

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Sedimentary Rocks - One way to classifying sedimentary rocks is particle size:

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