View of a volcanic island from above
Earth Science

Volcanic Islands and Sea-floor Magnetic Data

December 18, 2021

The most convincing evidence for the formation of new crust came from sea-floor magnetic data and the age of volcanic islands. Learning about them has been a pivotal point in the history of plate tectonics. […]

An image of the tectonic plates in Mid-Atlantic Ridge
Earth Science

Evidence of the Plate Tectonic Revolution

December 18, 2021

The eventual accumulation and weight of overwhelming evidence convinced the geological community to abandon years of research on isostacy and instead focus on the theory of plate tectonics. […]

An image of Alfred Wegener in one of his expeditions.
Earth Science

Alfred Wegener and the Continental Drift Theory

December 18, 2021

The continental drift theory was proposed by Alfred Wegener in 1912. It was based on several intriguing observations he made regarding the match-up of geological and paleontological phenomena across the Atlantic Ocean. […]

An illustration of divergent boundaries
Earth Science

Plate Tectonics and Divergent Boundaries

December 17, 2021

A new crust of volcanic material is formed along divergent boundaries. There are many divergent boundaries, such as, the Mid-Atlantic Ridge, the Indian Ocean Ridge, and the Juan de Fuca Ridge. […]

An illustration of an earthquake-hit region
Earth Science

Earthquakes: Causes and Long-term Effects

December 14, 2021

Every time an earthquake occurs, two blocks of rock create friction against each other. Over timeThese small movements have caused enormous changes on the surface of the Earth. […]

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