Missed Connections in the Archean.

Greetings. Alien visitation. The possibility is fascinating to ponder, challenging to consider, and easily considered from a biased, homocentric point of view. The Archean Eon is the second of the four geologic eons of Earth's long and storied history, preceded by the Hadean Eon and followed by the Proterozoic. The Archean represents the time period from approximately 4,031 to 2,500 million years ago. The Late Heavy Bombardment is hypothesized to have overlapped with the earliest stages of the Archean. The Huronian glaciation occurred at the very end of the Archean Eon. The Earth during the Archean was mostly a water world, the planet possessing a continental crust, but with the majority submerged underneath a global ocean substantially deeper than today's oceans. Except for some rare relict crystals, today's oldest continental crust dates back to the Archean, however, much of the geological detail of the Archean has been destroyed by subsequent tectonic and environmental...