Marine Biology Chapter 2 Flashcard

Front

What is the magnetic polarity pattern of the Mid-Ocean Ridge?

Back

The magnetic polarity pattern at the Mid-Ocean Ridge consists of stripes of normal polarity and reversed polarity that form mirror images (are symmetrical) on either side of the ridge.

Front

What natural disaster can be predicted using tectonic plate boundary maps?

Back

Earthquakes can be predicted using tectonic plate boundary maps.

Front

What are tectonic plates?

Back

Tectonic plates are massive pieces of land that are part of the Earth's crust and upper mantle.

Front

Why is Iceland geologically active?

Back

Iceland is geologically active because it sits above a divergent boundary, which leads to volcanic activity, geysers, and hot springs.

Front

What process destroys oceanic crust at convergent oceanic boundaries?

Back

The process responsible for the destruction of oceanic crust at convergent oceanic boundaries is called subduction.

Front

What is a divergent boundary?

Back

A divergent boundary is a tectonic plate boundary where two plates move away from each other, often resulting in the formation of new oceanic crust.

Front

What is subduction?

Back

Subduction is the process by which one tectonic plate moves under another plate and sinks into the mantle.

Front

What are the main types of tectonic plate boundaries?

Back

The main types of tectonic plate boundaries are divergent, convergent, and transform boundaries.

Front

What is sea floor spreading?

Back

Sea floor spreading is the process by which new oceanic crust is created at mid-ocean ridges as tectonic plates pull apart.

Front

What is a transform boundary?

Back

A transform boundary is a tectonic plate boundary where two plates slide past each other horizontally.