Nectarian

The Nectarian Period of the lunar geologic timescale runs from 3920 million years ago to 3850 million years ago. It is the period during which the Nectaris Basin was formed by a large impact event. Ejecta from Nectaris forms the upper part of the densely cratered terrain found in lunar highlands.

Since all geological evidence of that time on Earth has disappeared, it has been used as an unofficial period of the Hadean eon. No doubt similar events have happened on Earth because it is considerably larger and more massive than the Moon.

Template:Hadean Footerja:ネクタリス代

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