Types of Plate Boundaries

When two lithospheric plates moving towards each other collide, they form a _______ boundary.

The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is called ______ occur in boundary called _________.

When the interacting plates are both oceanic, the denser plate sinks beneath the lighter one and heads back to the mantle.

Older, cooler, denser plate slips beneath less dense plate, _____ forms on subducting plate side and ______ on overriding plate; band of earthquakes becoming deeper in the direction of subduction.

Subduction zones that are marked topographically by long, linear, deep portion of the ocean floor.

the deepest portion of the earth marks the subduction of the Pacific Plate under the Philippines Sea Plate.

Trench forms on the subducting plate side and Continental volcanic arc on the overriding continental plate.

are chains of volcanoes formed from the subduction of an oceanic plate beneath continental plate.

Neither mass is subducted; plate edges are compressed, folded, and uplifted resulting in the formation of major mountain range or folds.

ANDES MOUNTAINS OF WESTERN SOUTH AMERICA

HIMALAYAN MOUNTAIN RANGE

Occurs when two tectonic plates move away from each other.

The rising on convection currents _______ on the bottom of the lithosphere, lifting it and flowing laterally beneath it.

When these plates separate, the magma rushes up to fill the gap and creates _____. This also results to the formation of a new crust.

This new crust can remain deep under the oceans, creating ______ or it may pull apart from each other creating a weak spot in the crust, allowing magma to come through and reach the surface to form _____

a seafloor mountain range or system, formed by divergent plate boundaries.

Continental plates are far _____ than oceanic ones. Because of this, what usually happens instead is that a continent will ______, as water from the sea rushes in to ___ the gap.

a linear shaped lowland between several highlands or mountain ranges created by the action of a geologic rift or fault.

The volcanic activity associated with east African rift valley represented by _____

is a place where two plates slip past each other, moving in opposite directions.

It is the major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruption occur.