Lecture Notes on Key to the Past and Relative Time

Lecture Notes on Key to the Past and Relative Time -...

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Lecture’Notes’ ’ Key’to’the’Past’and’Relative’Time Key to the past: Principle’of’Uniformitarianism ’ o Hutton±s’concept’that’geological’processes’operating’at’present’are’ the’same’processes’that’operated’in’the’past’eventually’became’ known’as’the’principle’of’u niformitarianism.’ ’ o Stated’that’“the’present’is’the’key’to’the’past” o However,’it’states’that’changes’will’take’place’in’a’uniform’rate,’ which’isn±t’true.’ o Sudden,’violent’events,’such’as’a’major’short -lived’volcanic’eruption,’ also’influence’Earth±s’history. ’ ’ Actualism’ o The’same’processes’and’natural’laws’that’operated’in’the’past’are’ those’we’can’actually’observe’or’infer’from’observations’as’operating’ at’present.’ ’ o
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