Continental Drift and Relative Dating

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What is the Theory of Continental Drift?

Back

The Theory of Continental Drift, proposed by Alfred Wegener, states that all continents were once part of a single landmass that broke apart and drifted to their current locations.

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Who proposed the Theory of Continental Drift?

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Alfred Wegener proposed the Theory of Continental Drift.

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What is the Theory of Seafloor Spreading?

Back

The Theory of Seafloor Spreading, proposed by Harry Hess, suggests that new ocean floor is created at mid-ocean ridges and that the ocean floor moves away from the ridges.

Front

What is an unconformity in geology?

Back

An unconformity is a break in geologic time due to erosion, where rock layers are missing.

Front

What is an igneous intrusion?

Back

An igneous intrusion is magma that has cooled and solidified beneath the Earth's surface.

Front

What evidence supports the Theory of Continental Drift?

Back

Evidence includes the fit of the continents, fossil similarities across continents, and geological similarities.

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What are tectonic plates?

Back

Tectonic plates are large sections of the Earth's lithosphere that move and interact at their boundaries.

Front

What is the significance of mid-ocean ridges?

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Mid-ocean ridges are underwater mountain ranges where new ocean floor is created through volcanic activity.

Front

What is the difference between relative dating and absolute dating?

Back

Relative dating determines the sequence of events, while absolute dating provides a specific age of rocks or fossils.

Front

What is a fossil?

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A fossil is the preserved remains or traces of ancient organisms, providing evidence of past life.