gradualism

geology

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June 29, 2026

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Gradualism in geology, championed by Charles Lyell, posits that Earth's features are shaped by slow, continuous processes over vast periods. This contrasts with earlier catastrophic theories that attributed landform creation to sudden, violent events. Lyell's concept, rooted in uniformitarianism, suggests that the same geological processes observable today have operated throughout Earth's history, albeit at a consistent pace. While Lyell emphasized gradual change, modern understanding acknowledges that both slow and rapid geological events contribute to landform evolution. This principle is fundamental to understanding Earth's history and the development of its surface features.123

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dinosaur
The asteroid theory
…land dwellers, however, suggests a gradual rather than a sudden decline in dinosaurian diversity (and possibly abundance). Alterations in terrestrial life seem to be best accounted for by environmental factors, such as the consequences of seafloor spreading and continental drift, resulting in continental fragmentation, climatic deterioration, increased seasonality, and perhaps…
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…land dwellers, however, suggests a gradual rather than a sudden decline in dinosaurian diversity (and possibly abundance). Alterations in terrestrial life seem to be best accounted for by environmental factors, such as the consequences of seafloor spreading and continental drift, resulting in continental fragmentation, climatic deterioration, increased seasonality, and perhaps…
Read More

continental landform
Gradualism
Lyell’s concept of gradualism and accompanying process observation on an expanded time scale resulted in firmly establishing the fact that much could be accomplished by small forces working constantly for long periods. That conclusion is consistent even with present-day thought. Lyell’s almost total rejection…
Read More
Lyell’s concept of gradualism and accompanying process observation on an expanded time scale resulted in firmly establishing the fact that much could be accomplished by small forces working constantly for long periods. That conclusion is consistent even with present-day thought. Lyell’s almost total rejection…
Read More