Rock Types of Virginia Blind Lesson

Rock Types of Virginia Blind Lesson

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Poll

For starters, NO points. How are you?

Multiple Choice

Points this time...the Coastal Plain region is primarily made up of these kinds of rocks.

• sedimentary

• metamorphic

• igneous

• classic

Coastal Plain

• Flat land

• Mostly sedimentary rock

• East of Fall Line

Coastal Plain

• Now for a video presentation about the Fall Line, which your teacher will find in today's folder.

• 
  

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Poll

No Points -- What is the Fall Line?

• The boundary between the Piedmont and the Coastal Plain.

• A series of rapids and at the edge of the Coastal Plain.

• An impediment to early explorers like Christopher Newport.

• The hottest fashions of the season.

Multiple Choice

Points Question -- What is this Virginia region?

• Coastal Plain

• Piedmont

• Blue Ridge

• The Upside Down

Poll

No Points -- The Virginia Piedmont is made up primarily of this kind of rock.

• metamorphic

• igneous

• sedimentary

• Dwayne "The Rock" Johnson

Piedmont

• Rolling hills

• Mostly metamorphic rocks

• West of fall line

Multiple Choice

Points! - Heading west from the Piedmont, we enter...

• the Valley and Ridge

• the Appalachian Plateau

• the Blue Ridge

• the Piedmont, Part Two

Multiple Choice

No Points -- If you were visiting the Blue Ridge, what kind of rock are mostly likely to find?

• Metamorphic

• Igneous

• Sedimentary

• Chris Rock

Blue Ridge

• Old, rounded mountains

• Mainly igneous rocks with some metamorphic.

Multiple Choice

Points! (10 second question) Heading west from the Blue Ridge, we enter...

• The Valley and Ridge

• Hidden Valley Ranch

• The Twilight Zone

• The Land Before Time

Poll

No Points -- I would describe the rocks of the Valley and Ridge as...

• mostly sedimentary.

• karst topography.

• alright, I guess.

Valley and Ridge

• Includes Great Valley of Virginia

• Karst topography

• Mostly sedimentary rocks

Poll

Poll Question (no points) -- How do you like our journey through the Virginia Provinces so far?

• Great!

• Pretty good.

• Lots of fun.

• The book was better than the movie.

Multiple Choice

Points! (10 second question) The western most province of Virginia is...

• the Appalachian Plateau.

• the Western Front.

• the Place Beyond the Pines.

• where Bob lives.

The Appalachian Plateau

• Only a small part in Virginia

• Mainly sedimentary rocks

Poll

Ready to apply your knowledge of weathering, erosion, and plate tectonics to the physiographic provinces of Virginia?

• Yeah boy!

• You know it!

• I'm ready.

• What are you waitin' for, Christmas?!!

Multiple Choice

This region is very flat and is mostly made of sediments produced by erosion of the Appalachian Mountains and the Piedmont.

• Coastal Plain

• Piedmont

• Blue Ridge

• Valley and Ridge

• Appalachian Plateau

Multiple Choice

Virginia's smallest region has rugged, irregular topography and is underlain by ancient, flat-lying sedimentary rocks; Virginia's coal deposits are mostly found here.

• Coastal Plain

• Piedmont

• Blue Ridge

• Valley and Ridge

• Appalachian Plateau

Multiple Choice

Virginia's largest region is an area of rolling hills underlain by mostly ancient igneous and metamorphic rocks.

• Coastal Plain

• Piedmont

• Blue Ridge

• Valley and Ridge

• Appalachian Plateau

Multiple Choice

This region is a high ridge separating the Piedmont from the Valley and Ridge Province. It's billion-year old igneous and metamorphic rocks are the oldest in the state.

• Coastal Plain

• Piedmon

• Blue Ridge

• Valley and Ridge

• Appalachian Plateau

Multiple Choice

This is an area with long parallel ridges and valleys underlain by ancient folded and faulted sedimentary rocks; you will find karst topography here.

• Coastal Plain

• Piedmont

• Blue Ridge

• Valley and Ridge

• Appalachian Plateau

Multiple Choice

Think about this: three provinces, the Coastal Plain, Valley and Ridge and Appalachian Plateau, are primarily made of sedimentary rock. This suggests that all three...

• were once underwater.

• are prime real estate.

• have the best beaches.

• live in a pineapple under the sea.

Multiple Choice

The folding and faulting of the Blue Ridge and Appalachian Mountain Range are believed to be the result of ___________________ 480 million years ago; it happened during the formation of Pangaea.

• converging tectonic plates

• diverging tectonic plates

• tectonic plates sliding past each other at a transform boundary.

• paper plates

Multiple Choice

Converging tectonic plates also led to the Piedmont being made largely of this type of rock.

• sedimentary

• metamorphic

• igneous

• classic

Multiple Choice

Some areas west of the Coastal Plain include igneous rocks, indicating Virginia was once...

• volcanically active

• covered in glaciers

• entirely underwater

Mole Hill

Mole Hill is a 48-million year old extinct cinder cone volcano just west of Harrisonburg. It's one of two extinct volcanoes in Virginia.

Poll

No Points -- Other parts of Western Virginia include large areas of flood basalt dating back 500 million years, to the break up of the supercontinent...

• Pangaea

• Rodinia

• Wal-Mart

Breakup of Rodinia

Around 570 million years ago the underlying tectonic plates began to move apart. Vast quantities of lava rose through a developing system of rifts, erupting onto the surface along rift zones that stretched along what is now eastern North America. Eventually the rift between the plates grew so wide that water began to fill it, and a new ocean was born.

Poll

We have completed our tour of Virginia's geologic history. What did you think? (last slide)

• Interesting

• I plan to learn more about it.

• It rocked!

• What do the rocks say?