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uniformitarianism    
均变说; 均变说

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  • Uniformitarianism - Wikipedia
    Uniformitarianism, also known as the Doctrine of Uniformity or the Uniformitarian Principle, [1] is the assumption that the same natural laws and processes that operate in our present-day scientific observations have always operated in the universe in the past and apply everywhere in the universe [2][3] It refers to invariance in the
  • Uniformitarianism | Definition Examples | Britannica
    Uniformitarianism, in geology, the doctrine suggesting that Earth’s geologic processes acted in the same manner and with essentially the same intensity in the past as they do in the present and that such uniformity accounts for all geologic change It is fundamental to geologic thinking and the science of geology
  • Uniformitarianism - Education
    The principle of uniformitarianism says that the present is the key to the past This principle has had a profound impact on the science of geology
  • Uniformitarianism : Definition Examples - Geology In
    Uniformitarianism is a fundamental principle of geology that states that the same natural laws and processes that operate in the present have always operated in the past and apply everywhere in the universe It is essential to the understanding of Earth's history, as it allows us to interpret the past based on what we can observe happening in the present What Is Uniformitarianism
  • Uniformitarianism: Charles Lyell - Understanding Evolution
    Lyell had an equally profound effect on our understanding of life’s history He influenced Darwin so deeply that Darwin envisioned evolution as a sort of biological uniformitarianism Evolution took place from one generation to the next before our very eyes, he argued, but it worked too slowly for us to perceive
  • Uniformitarianism - Geology Science
    Uniformitarianism is a fundamental principle in geology that suggests that the same geological processes and natural laws that operate today have been operating throughout Earth's history, and that they can be used to explain the geological features and formations found in the past In other words, the present is the key to the past
  • Uniformitarianism: The Present Is the Key to the Past - ThoughtCo
    Uniformitarianism is a geological theory that describes the processes shaping the earth and the Universe It states that changes in the earth's crust throughout history have resulted from the action of uniform, continuous processes that are still occurring today
  • What Is Uniformitarianism? Definition Examples - ScienceInsights
    Uniformitarianism is the geological principle that the natural processes shaping the Earth today, like erosion, sedimentation, and volcanic activity, are the same processes that shaped it in the distant past Often summarized by the phrase “the present is the key to the past,” it means scientists can look at what’s happening on Earth right now and use those observations to explain how
  • Uniformitarianism | The Foundation of Modern Geology - University of . . .
    Lyell’s theory of uniformitarianism would eventually coincide with plutonism as the foundation of modern geology Uniformitarianism is also the first theory to predict deep time in western science Deep time is the idea that Earth history is so deep that a person can’t possibly conceive the amount of time that has passed on planet earth
  • UNIFORMITARIANISM Definition Meaning - Merriam-Webster
    The meaning of UNIFORMITARIANISM is a geologic doctrine that processes acting in the same manner as at present and over long spans of time are sufficient to account for all current geological features and all past geological changes





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