The Rock Cycle

Views:
 
Category: Education
     
 

Presentation Description

The handout and Pencast that go with this presentation can be found here: http://formontana.net/unit7.html

Comments

Presentation Transcript

PowerPoint Presentation:

The Rock Cycle

Other Resources:

Other Resources The handout that goes with this presentation can be found here: http://formontana.net/RockCycle.pdf The link to a PenCast can be found here: http://formontana.net/unit7.html

1. What is a “cycle” (in nature)?:

1. What is a “ cycle ” (in nature)? A series of steps/processes that recycle a material

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma

PowerPoint Presentation:

Are these igneous rocks “ volcanic ” or “ plutonic ” ?

PowerPoint Presentation:

Taft Point in Yosemite Park “ Volcanic ” or “ plutonic ” ?

PowerPoint Presentation:

Next: Boulder Batholith Which color represents plutonic rocks?

PowerPoint Presentation:

The Boulder Batholith near Whitehall “ Volcanic ” or “ plutonic ” ? “ Extrusive ” “ Intrusive ”

PowerPoint Presentation:

Next: Near Cascade

PowerPoint Presentation:

Near Cascade What kind of volcanic formation is this?

PowerPoint Presentation:

Why are there layers here? Volcanic Rock

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma

overrun by advancing sand dunes:

Coconino Sandstone Hermit Shale mud in flood plains and tidal flats overrun by advancing sand dunes What do geologist learn from sedimentary rock?

PowerPoint Presentation:

Madison Limestone in Trout Creek Canyon near York What was the environment when this sediment was deposited?

PowerPoint Presentation:

MT

PowerPoint Presentation:

What was the environment?

PowerPoint Presentation:

Along Missouri River near Ft. Benton What was the environment?

PowerPoint Presentation:

White Cliffs of the Missouri

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma

PowerPoint Presentation:

One more?

PowerPoint Presentation:

What caused some of the limestone to change to marble?

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma

2. How does a metamorphic rock become an igneous rock?:

2. How does a metamorphic rock become an igneous rock? It needs to melt and then freeze (crystallize).

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma

3. How does a sedimentary or igneous rock become a metamorphic rock?:

3. How does a sedimentary or igneous rock become a metamorphic rock? Heat and/or pressure change(s) it. Happens at . . . Great depth Near magma As plates collide

PowerPoint Presentation:

Heat and/or Pressure

PowerPoint Presentation:

Contact Metamorphism

PowerPoint Presentation:

Over 50 ft. thick limestone limestone ? ?

PowerPoint Presentation:

Gneiss!

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma

4. How does any kind of rock become sediment?:

4. How does any kind of rock become sediment? Weathering (higher places) Erosion (and mass wasting) Deposition in low places called “ basins ”

PowerPoint Presentation:

Weathering

PowerPoint Presentation:

PHOTO: Weathered granite goes here

PowerPoint Presentation:

Granite Sand Clay

PowerPoint Presentation:

Erosion Why does the Milk River look so muddy?

Deposition:

Deposition

PowerPoint Presentation:

Which color is sediment? What kind?

W.E.D.:

W.E.D.

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma

5. List the types of sediment from largest to smallest.:

5. List the types of sediment from largest to smallest. Gravel Sand Silt clay BACK

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma

6. How does sediment become sedimentary rock?:

6. How does sediment become sedimentary rock? Compaction (burial) Cementation

PowerPoint Presentation:

Compacted & Cemented

PowerPoint Presentation:

Why is this sandstone tougher than the surrounding sandstone?

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma

7. What are the molecules that are recycled in the rock cycle?:

7. What are the molecules that are recycled in the rock cycle? minerals

8. What keeps the rock cycle going?:

8. What keeps the rock cycle going? Plate tectonics The water cycle Global circulation (wind)

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma 1

PowerPoint Presentation:

Which arrow would this one go by?

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma 1

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma

PowerPoint Presentation:

Igneous Rocks Sediments Sedimentary Rocks Metamorphic Rocks Magma 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

authorStream Live Help