Plate Tectonics and Crustal Features

Scientists recently discovered that rocks collected from the Franklin Mountains in West Tests and rocks collected from mountains in eastern Antarctica were exactly the same age. Further research showed that the rocks were chemically and geologically the same and came from the same magma source. This discovery provides evidence of--

• coastal erosion

• plate tectonics

• ocean currents

• glacial melting

Tags

NGSS.MS-ESS2-3

Which statement best describes the geologic process that is most likely responsible for the formation of mountains?

• They are along a transform plate boundary that is no longer active, so erosion is creating deep valleys.

• They are along a transform plate boundary in which plates are currently moving side by side, causing earthquakes and faults

• They are along a plate boundary in which plates are currently converging, causing uplift and steep slopes.

• They are along a plate boundary in which plates diverged in the distance past, allowing new rock to build up.

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NGSS.MS-ESS2-2

A mid-ocean RIDGE is located at the boundary of two tectonic plates. Which diagram correctly models the relative plate motion on each side of a mid ocean ridge?

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• 
• 

Tags

NGSS.MS-ESS2-2

Rift valleys can from when fractures in Earth's crust widen. The valley walls slowly move at a rate of only a few millimeters a year. Which of these best describes the type of tectonic activity that forms rift valleys?

• Rift valleys from where a continental plate moves under an oceanic plate

• Rift valleys form where a plate slides horizontally past another plate

• Rift valleys from where two plates move away from each other.

• Rift valleys form where an oceanic plate moves under another oceanic plate.

Tags

NGSS.MS-ESS2-2

-​ (a)  

- ​ (b)  

- (c)  

• Trench

• Volcanic Mountains

• Seafloor Spreading

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

A break in the rock of the crust where rock surfaces slip past each other; usually occur along plate boundaries:

• focus

• epicenter

• fold

• fault

Tags

NGSS.MS-ESS2-2

Rift valleys do NOT form at ​ ​ (a)  

• subduction zones.

• divergent plate boundaries.

• mid-ocean spreading centers.

• sites of continental rifting.

An underwater feature that forms at divergent tectonic plate boundaries is a(n) (a)   .

• mid-ocean ridge

• volcano

• mountain range

• ocean trench

Tags

NGSS.MS-ESS2-3

Breaks in the crust called __________ form where plates meet.

• mountains

• rift valleys

• faults

• trenches

Tags

NGSS.MS-ESS2-3

​ ​ (a)   -​ (b)   ​ (c)   Boundary create deep ocean trenches.

• Ocean

• Convergent

• Continent

• Divergent

• Transform

Tags

NGSS.MS-ESS2-3