Erosion by wind and water, the cooling of the planet, and the drift of tectonic plates operate on scales that are imperceptible within a human lifespan. Gradualism: The idea that change occurs slowly and incrementally rather than through sudden, violent upheavals.
Physical Laws Constancy Deep Time
5 billion years—provides the vast temporal canvas required for slow processes to create significant geological features. Hutton’s observations of rock formations and geological cycles led him to propose that the Earth was shaped by “slow and tedious” processes acting over “an immense period of time.
Through meticulous fieldwork and logical argumentation, Lyell demonstrated that gradual processes, given sufficient time, could produce the dramatic mountain ranges and sculpted valleys observed in the geological record. James Hutton: The Precursor Before Lyell, the concept was foreshadowed by the work of James Hutton, often called the father of modern geology.
Physical Laws Constancy Deep Time
Principles and Mechanisms At its core, uniformitarianism relies on the principle of methodological naturalism, which assumes that natural phenomena have natural causes that can be investigated and understood. The Role of Deep Time A necessary precondition for uniformitarianism to function is the concept of deep time.
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