Plate Tectonics

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Total cards: 13•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (13)

Front (Question)

Percent composition of each boundary on Earth:

Back (Answer)

Divergent - 40% Convergent - 40% Transform - 20%

Front (Question)

Wilson Cycle

Back (Answer)

Describes how the continents are always in a constant cycle of splitting and rejoining

Front (Question)

Ophiolite

Back (Answer)

a slice of ancient oceanic lithosphere that has been uplifted onto Earth’s continental crust during mountain building

Front (Question)

Seamounts

Back (Answer)

Submarine Volcanoes

Front (Question)

Guyots

Back (Answer)

Specific types of seamounts with flat tops

Front (Question)

Curie’s Point

Back (Answer)

the point at which a material loses its magnetic properties

Front (Question)

Divisions of the magnetic time scale

Back (Answer)

Chrons (1 million years each)

Front (Question)

2 models of plate-mantle convection

Back (Answer)

Whole-mantle convection model; Lower cake model

Front (Question)

Whole-mantle convection model

Back (Answer)

the earth’s mantle convects as one continuous system

#10

Front (Question)

Layer-Cake model

Back (Answer)

There are two separate convection systems: a dynamic upper mantle and a sluggish lower mantle w/ limited mixing between them

#11

Front (Question)

Pangea began splitting during the

Back (Answer)

mesozoic era

#12

Front (Question)

divergent plate boundaries also known as:

Back (Answer)

spreading centers

#13

Front (Question)

we are in the

Back (Answer)

brunhes normal chron