Geology Lesson 5: Transform Boundaries & Faults

Geology Lesson 5: Transform Boundaries & Faults

Open Ended

Gratitude Moment

Transform boundaries are when the plates slide past each other but still are touching. So think of something or someone from your past that you are still in touch with that sparks some joy.

Example: Thanks to facebook I am still in touch with some ex-boyfriends. Fun to see their kids and families.

Transform Boundaries

• Plates slide past each other but are still in contact

• Creates earthquakes

• Doesn't create volcanoes or other physical features

• Currently occurring in California!

Multiple Choice

What type of motion is associated with a transform boundary?

• plates move apart

• plates come together

• plates slide past each other

Multiple Select

What type of feature(s) is/are created at a transform boundary?

• mountains

• volcanic islands

• volcanic mountains

• rift valley

• none of the choices

Transform Boundary in California

• It's called a San Andreas Fault but it is a boundary

• San Diego is sliding Northwards

Multiple Choice

The San Andreas fault in California is on this type of plate boundary.

• Convergent
• Divergent
• Transform

Boundaries aren't always neat & tidy!

• Notice at the bottom right it shows a divergent boundary

• Notice at the middle there is a transform boundary.

Multiple Choice

Which of the following shows evidence of a transform boundary?

Poll

Would you rather

• have to fart loudly every time you have a serious conversation

• have to burp after every time someone starts a conversation with you

Faults vs. Boundary

• Faults are cracks in a plate

• Plate boundaries can be considered faults - though I prefer to not confuse you be interchanging those terms

• Notice faults have same 3 motions as a boundary but have different terms

• I'm not requiring you to learn the 3 types of faults, just what a fault is

Multiple Choice

A fault is a crack in the earth's crust.

• True

• False

Faults in Kansas

• Kansas has more faults than this shows - but these are the bigger ones

• Remember Kansas doesn't have current plate boundaries

Earthquake Risk in U.S.

• NW U.S. - convergent boundary

• California - Transform Boundary

• Yellowstone - hot spot (magma coming up in the middle of a plate/not boundary)

• Alaska's Aleutian Islands - convergent boundary

• Remaining is fault activity

New Madrid Fault

• Not related to a plate boundary

• Notice Kansas would feel and be slightly affected by it

• Since midwest doesn't build for earthquakes, it would make us more prone to deaths and destruction

Multiple Choice

Which is true about the crust at a Transform Boundary?

• Crust is destroyed

• Crust is created

• Crust is neither destroyed or created

Multiple Choice

What feature is found at a transform boundary

• Rift valley

• Fault

• Seafloor spreading

• Mid-ocean ridge

Multiple Choice

What type of boundary is this?

• convergent

• divergent

• transform

Multiple Choice

A transform boundary, where one tectonic plate slides past another, is likely to result in which of the following?

• Frequent earthquakes

• Rift valley formation

• Intense weathering

• Mountain building

Poll

Which concepts about transform boundaries are you comfortable with?

• Transform Boundary Motion

• Features Created at Transform Boundary

• Faults vs. Boundary

• Where in the U.S. do we have have a transform bounday & the name.

Poll

Overall comfort with transform boundaries

• Bring me the quiz - I got this & feel like I could teach others!

• Pretty good, just need some review

• I need to repeat this lesson possibly a few times to get more comfortable.

Open Ended

Questions??? Points of Confusion??