Chapter 6, Section 3. Key Terms. Create a flash card for the following key terms (p. 129 in textbook): Compaction Cementation Chemical sedimentary rock Organic sedimentary rock Clastic sedimentary rock If you finish early, study your flash cards!. Sedimentary Rock. - PowerPoint PPT Presentation
Chapter 6, Section 3 Standards 3c. Students know how to explain the properties of rocks based on the physical and chemical conditions in which they are formed, including plate tectonic properties. Objective 1 Explain the processes of compaction and cementation. Objective 2 Describe how chemical and organic sedimentary rocks form. Objective 3 Describe how clastic sedimentary rock forms. Objective 4 Identify seven sedimentary rock features. Assessment End of Section Questions,
Transcript
Chapter 6, Section 3
Standards 3c. Students know how to explain the properties of rocks based on the physical and chemical conditions in which they are formed, including plate tectonic properties.
Objective 1 Explain the processes of compaction and cementation.
Objective 2 Describe how chemical and organic sedimentary rocks form.
Objective 3 Describe how clastic sedimentary rock forms.
Objective 4 Identify seven sedimentary rock features.
Assessment End of Section Questions, Chapter Test
Review Daily Bellwork, Science Starters, Standards Practice
Key Terms
Create a flash card for the following key terms (p. 129 in textbook):
CompactionCementationChemical sedimentary rockOrganic sedimentary rockClastic sedimentary rock
If you finish early, study your flash cards!
Sedimentary Rock• Loose fragments of rocks, minerals,
and organic material are called sediment.
• When sediment is compacted and compressed over time it becomes SEDIMENTARY ROCK.
Sedimentary Rock Video Clip
3 Types of Sedimentary Rocks
OrganicClasticChemical
Chemical Sedimentary Rock• Forms from minerals that were once dissolved in
water.• When water evaporates, the minerals are left behind.• When enough mineral is left behind they form rocks
called Evaporites.• Gypsum, halite (rock salt)
Bonneville Salt Flats near the great Salt Lake in Utah.
Organic Sedimentary Rock• Rock that forms from the remains of living things.• Coal forms from buried plant material.• Limestone forms from dead marine organisms (coral,
clams, plankton, etc)• Chalk is made up of teeny, tiny shells of marine
organisms
Clastic Sedimentary Rock• Forms from rock fragments that are carried away from
their source by water, wind, or ice and left as deposits.• Clastic Sedimentary Rocks are classified by the size
and shape of the fragments that are cemented together.
Conglomerate Breccia
Sandstone Shale
Types of Clastic Rock
Conglomerate Rock
• Rounded fragments that can easily be seen.
BrecciaFragments are angular and
have sharp corners. Sediment pieces are easily seen.
Sandstone• Sand-sized grains that have been
cemented together. Many sandstones are porous and groundwater, crude oil, and natural gas can flow through it.
Shale• Clay-sized particles that are cemented and
compacted. • Pressed into flat layers that easily split
2) Name 3 Types of Sedimentary Rock: ____________________________________________________________________________________________________________________________________
3) Name 2 Types of Clastic Rock: ____________________________________________________________________________________________________________________________________
INTERACTIVE!• Create a BUBBLE Map with terms about Sedimentary
Rocks.• Add color!
Clastic Sediments•Sediments are transported by water, ice, wind, and gravity.In general, larger sediments do not travel very far from the source; smaller sediments will travel longer distances.
•Sorting: The tendency for water and air to separate sediments according to size is called sorting.
•Angularity: In general, the closer to the source the sediment is deposited the more sharp and angular it is. The farther away it is deposited the rounder and smoother it becomes.
StratificationLayering of
sedimentary rock
Sedimentary Rock Features
Cross-beds and Graded
Bedding
Ripple Marks
Mud Cracks
Fossils and Concretions
Slanting layers are cross-beds. Graded bedding occurs when different sizes and shapes of sediment settle at different
layers.
Caused by wind or water on sand.
Form when muddy deposits dry and
shrink.
The remains or traces of ancient plants and animals are often
buried in sedimentary rock and impressions are left in the rock.
Sedimentary Rock Features
Stratification
Cross-bedsRipple MarksMud CracksFossils
Mini-Lab
Assessment Frayer Diagram: Include a written description/definition
