Rockin the rock cycle
This presentation is the property of its rightful owner.
Sponsored Links
1 / 21

Rockin ’ the Rock Cycle PowerPoint PPT Presentation


  • 127 Views
  • Uploaded on
  • Presentation posted in: General

Rockin ’ the Rock Cycle. Starring Sedimentary, Igneous and Metamorphic Rock. The Rock Cycle is a continuous process where any type of rock can be changed into any other type of rock . What are Rocks?. Rocks: naturally occurring solids that are made of two or more minerals

Download Presentation

Rockin ’ the Rock Cycle

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Rockin the rock cycle

Rockin’ the Rock Cycle

Starring Sedimentary, Igneous and Metamorphic Rock


Rockin the rock cycle

The Rock Cycle is a continuous process where any type of rock can be changed into any other type of rock.


What are rocks

What are Rocks?

  • Rocks: naturally occurring solids that are made of two or more minerals

  • There are three types of rocks based on how they are formed on Earth:

    • Igneous

    • Sedimentary

    • Metamorphic

Granite - Igneous

Marble - Metamorphic

Shale - Sedimentary


The rock cycle

The Rock Cycle

  • Rocks are constantly being made and recycled to form other types of rocks. This is called the Rock Cycle.

  • You can start at any place and follow the life of a rock.

  • We will start with igneous rock.


Igneous rock

Igneous Rock

  • Igneous rock is made when magma cools and crystallizes. (Igneous means “from fire or heat”)


Examples of igneous rock

Examples of Igneous Rock

Granite: Large/Course Grains

Basalt: Small/Fine Grains

Obsidian: Glassy/Very Fine

Grains


What type of igneous rock

What Type of Igneous Rock??

A. B.

C.D.


What can happen to the igneous rock

What can happen to the Igneous Rock?

1. It can be weathered and eroded and turned into small pieces, called sediment, which can then be turned into a sedimentary rock.

2. It can be put under high heat or pressure and form a metamorphic rock.

  • Could melt and become magma again = igneous rock

     We will move to sedimentary rocks next!


Becoming a sedimentary rock

Becoming a Sedimentary Rock

  • Weathering is the breaking down of rock on Earth’s surface physically or chemically

  • Physical Weathering: Breaks rock into smaller pieces. Examples- Tree Roots breaking apart rocks, Water freezing inside cracks of rocks causing them to expand and break

  • Chemical Weathering: Involves chemical reactions that change the rock. Example- Acid Rain on gravestones (dissolves minerals)


Rockin the rock cycle

  • Rock is weathered and forms sediments

    • Sediments: smaller pieces of rock

      • Examples: Gravel, Sand, Mud, Soil


Becoming a sedimentary rock1

Becoming a Sedimentary Rock

  • Erosion – sediments are transported by wind or water

    3. Deposition – when the sediments stop moving. This produces different types of “bedding”


3 deposition types of bedding

3. Deposition – Types of Bedding

  • Bedding – oldest sediments on the bottom, youngest sediments on top

    2. Graded Bedding – biggest sediments on bottom, smallest on top (happens in water)

    3. Cross Bedding – sediments are laid at an angle (ex: sand dunes)


Finally becoming a sedimentary rock

Finally Becoming a Sedimentary Rock!

4. Lithification - Sediments must be buried, compacted, cemented together to make a sedimentary rock.

  • Examples of Sedimentary Rock:

CoalSandstoneShale


Where we ve been

Where We’ve Been…


What can happen to sedimentary rock

What can happen to Sedimentary Rock?

1. Could weather and erode to become sediments = sedimentary rock

2. It can be put under high heat or pressure and form a metamorphic rock.

  • Could melt to form magma = igneous rock

     We will move to metamorphic rocks next!!


Metamorphic rocks

Metamorphic Rocks

  • Formed from existing rocks.

  • Are created by intense heat or intense pressure.

  • Can be foliated = looks like it has layers (made from pressure)

  • Can be non-foliated = does not look like it has layers (made from heat)


Examples of metamorphic rock

Examples of Metamorphic Rock

Limestone (Sedimentary)  Marble

Shale (Sedimentary)  Slate

Granite (Igneous)  Gneiss


What can happen to metamorphic rock

What can happen to Metamorphic Rock?

  • Could weather and erode to become sediments = sedimentary rocks

    2. Could melt to form magma = igneous rocks


In summary

In Summary…

  • The Rock Cycle is the continuous making and remaking of rocks

  • All rocks can become other types of rocks

  • The three types of rocks are: Igneous, Sedimentary, and Metamorphic

    • Igneous Rocks are made by magma

    • Sedimentary Rocks are made by sediments

    • Metamorphic Rocks are rocks exposed to heat or pressure

    • Interactive Rock Cycle


The importance of rocks

The Importance of Rocks

  • Granite (I) is widely used in homes and buildings and is the “state rock” of N.C.

  • Marble (M) makes up the Lincoln Memorial and is used in flooring

  • Limestone (S) is used in construction

  • The State Capitol Building is made of Gneiss (M)

  • Coal (S) is an energy source


  • Login