Plate Boundaries

Plate Boundaries

Frida Sofia Suarez

3 type of plate Boundaries

Transform Boundary

Divergent Boundary

Convergent Boundary

Convergent Boundaries

Oceanic - Continental

VS

VS

Continental - Continental

Oceanic - Oceanic

• Motion of the plate
• Collision between two continental plates. The plates aren't dense enough so they collide and push upwards .
• Seismic & Volcanic activity
• Intense seismic activity 0-700 km
• sparse volcanic activity
• Geochronology & Gragraphic features
• large mountain ranges 800-8000 meeters
• no seafloor
• Example
• Himalaya Mountains

• Motion of the plate
• Collision between oceanic crust and contiental crust. The oceanic plate is denser, so it subducts.
• Seismic & Volcanic activity
• earthquakes around 0 - 700 km
• volcanic arcs present
• Geochronology & Graphic features
• older plate 67-180 million years subducts
• seafloor is very deep -2500 - 800 meaters
• Example
• Andes Mountains

• Motion of the plate
• Collision between two plates composed of oceanic lithosphere. The older, denser oceanic plate will subduct.
• Seismic and volcanic acitivity
• Activity along subduction zone 300-700 km

• sparse volcanic activity
• Geochronology and Graphic features
• subducting plate creates a trench 33.1 million yrs old
• seafloor is very deep -2500 -(-10400) meaters
• Example
• Aleutian Islands

Divergent Boundaries

Oceanic - Oceanic

• Motion of the plate
• Two tectonic plates move away from each other.
• Seismic & Volcanic activity
• frequent seismic activty
• high concentration of volcanoes
• Geochronology & Gragraphic features
• seafloor age increases as you move away
• mid-ocean ridges between -2500 - 800 meaters
• Example
• Mid Atlantic Ridge

Transform Boundaries

Oceanic - Continental

Oceanic - Oceanic

VS

VS

Continental - Continental

• Motion of the plate
• Two tectonic plates move past one another.
• Seismic & Volcanic activity
• frequent earhtquakes 0-700km
• not much volcanic activity
• Geochronology & Graphic features
• seafloor is younger 0-68 million years old
• oceaninc and continental side have different depths
• Example
• Galapagos Rise

• Motion of the plate
• Two tectonic plates move past one another.
• Seismic & Volcanic activity
• frequent earthquakes
• not much volcanic activity
• Geochronology & Gragraphic features
• seafloor is usually newer 0-20.1 million years old
• elevation depth is between -2500-800 meaters
• Example
• Nazca Plate & Pacific Plate

• Motion of the plate
• Two tectonic plates move past one another.
• Seismic & Volcanic activity
• heavily concentrated earthquakes from 0 - 700 km
• sparse volcanic activity
• Geochronology & Gragraphic features
• no seafloor
• nigh mountain ranges 800-8000 meaters
• Example
• San Andreas Fault