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Beauty Quote by Keith Meldahl

“Earth processes that seem trivially slow in human time can accomplish stunning work in geologic time. Let the Colorado River erode its bed by 1/100th of an inch each year (about the thickness of one of your fingernails.) Multiply it by six million years, and you’ve carved the Grand Canyon. Take…” quote by Keith Meldahl
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““Earth processes that seem trivially slow in human time can accomplish stunning work in geologic time. Let the Colorado River erode its bed by 1/100th of an inch each year (about the thickness of one of your fingernails.) Multiply it by six million years, and you’ve carved the Grand Canyon. Take the creeping pace of which the continents move (about two inches per year on average, or roughly as fast as your fingernails grow). Stretch that over thirty million years, and a continent will travel nearly 1,000 miles. Stretch that over a few billions years, and continents will have time to wander from the tropics to the poles and back, crunching together to assemble super-continents, break apart into new configurations- and do all of that again several times over. Deep time, it could be said, is Nature’s way of giving the Earth room for its history. The recognition of deep time might be geology’s paramount contribution to human knowledge.””

Keith Meldahl

About This Quote

Source Lecture: Geology Society, 2018

Deep time shows geological processes act slowly but achieve massive changes over millions of years.

In simple terms: Geologic time lets slow processes create huge results.

Key Takeaway

Respect long‑term processes.

Themes

science geology patience

Mood

thoughtful inspiring

Type

educational philosophical

When to use this quote

  • environmental planning
  • education
  • long‑term policy

Key Concepts

deep time erosion plate tectonics

Questions to Reflect On

  • How can we incorporate deep time into decision‑making?
  • What lessons does deep time teach about sustainability?
A Different Perspective

Human timescales can’t perceive deep time, leading to short‑term thinking.

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