Plate Tectonics Quiz & Flashcards

Transform boundaries involve horizontal sliding, unlike convergent or divergent boundaries.

Subduction involves oceanic crust being pulled into the mantle, recycling it.

The Mid-Atlantic Ridge is formed at a divergent boundary where plates move apart.

Convection currents in the mantle drive the movement of tectonic plates.

Mountain ranges form when plates collide at convergent boundaries.

Oceanic plates are denser than continental plates, affecting their interactions.

Sea-floor spreading creates new crust as magma rises at mid-ocean ridges.

The Ring of Fire is known for its seismic activity due to plate boundaries.

Subduction zones involve one tectonic plate descending beneath another.

Magnetic stripes show symmetrical patterns indicating sea-floor spreading.

Earthquakes are primarily caused by the sudden release of stress due to plate movements.

The lithosphere, which includes tectonic plates, is the layer involved in plate tectonics.

The asthenosphere is a semi-fluid layer beneath the lithosphere, enabling plate movement.

Divergent boundaries are where new crust is formed as plates move apart.

Orogeny refers to the process of mountain building, often at convergent boundaries.

Subduction of an oceanic plate beneath a continental plate forms deep ocean trenches.

Transform boundaries create faults where plates slide past each other.

Mantle plumes create hot spots, leading to volcanic islands and other geological features.

Continental drift is supported by geological features that match across continents.

Ridge-push is where gravity helps move plates from the elevated mid-ocean ridges.

The ongoing collision of tectonic plates causes the Himalayas to rise.

Oceanic crust becomes older as it moves away from the mid-ocean ridge due to spreading.

Slab-pull refers to the force exerted by a sinking oceanic plate pulling the rest of the plate.

The San Andreas Fault is a classic example of a transform boundary where plates slide past each other.

A common misconception is that plates move only during earthquakes; they move constantly.

Plate tectonics plays a crucial role in both the creation and recycling of rocks.

Subduction is a process, not a type of boundary; convergent, divergent, and transform are boundary types.

Mantle convection is the primary mechanism driving the movement of tectonic plates.

Divergent boundaries are characterized by sea-floor spreading as plates move apart.

Hot spots are volcanic regions fed by underlying mantle plumes, not related to plate boundaries.

Island arcs form when an oceanic plate subducts beneath another, leading to volcanic activity.

Deep ocean trenches are clear indicators of subduction zones where plates descend into the mantle.

Tectonic plates subduct carbon into Earth's interior, which is later released through volcanism.

A misconception is that plates only move during earthquakes when they actually move constantly.

The Mid-Atlantic Ridge is a divergent boundary where new oceanic crust is created.

Volcanic eruptions from tectonic activity release gases that can influence climate.

The lithosphere is the rigid outer layer that includes tectonic plates.

Wind currents do not affect plate tectonics, unlike mantle convection, ridge-push, and slab-pull.

Magnetic stripes provide evidence of sea-floor spreading by showing symmetrical patterns across mid-ocean ridges.

Transform boundaries are characterized by horizontal sliding, unlike other boundary types where plates converge or diverge.

Divergent boundaries typically feature mid-ocean ridges formed by plates moving apart.

The movement of tectonic plates is the mechanism behind the drifting of continents.

Earthquakes result from the release of stress accumulated due to plate movements along faults.

Isostasy describes the balance between the Earth's crust and mantle, influenced by density and thickness.

Convergent boundaries often form mountains and volcanic arcs due to the collision and subduction of plates.

The asthenosphere's semi-fluid nature enables the movement of tectonic plates above it.

Tectonic plate movements accumulate stress that is released as earthquakes.