Hadean time

专有名词
中文释义

英文释义

专有名词
  1. The geologic eon from about 4,600 to 3,800 million years ago, marked by the formation of the first rocks.
    — It may be that erosion or metamorphism destroyed traces of Hadean life, or that Hadean time preceded the evolution of life. In any case, Hadean time is not amenable to subdivision based on fossils.
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