The early earth / editor, D.R. Nelson. Earth's formation and first billion years / D.R. Nelson. The early Precambrian stratigraphic record of large extraterrestrial impacts / B.M. Simonson, G.R.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The Precambrian is the name given for the first super eon of Earth’s history. This division of ...

Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago and ending with the emergence of complex, multicelled life-forms almost ...

The casual observer generally rejects the possibility of hydrocarbons occurring in the Precambrian basement rocks of Ohio and surrounding region. However, it appears that a major paradigm shift must ...

Paleontologists now know that the Precambrian actually did swarm with living creatures, and it was swarming more than 3.85 billion years ago. The earliest evidence of life comes from the southwestern ...

This is a preview. Log in through your library . Abstract Isotopic age determinations (U-Th-Pb) on zircons from pegmatite and granophyre dikes in the western San Gabriel Mountains have yielded ...

Since the original release of the Ohio seismic reflection profile by the Consortium for Continental Reflection Profiling (COCORP) in 1988, several interpretations have been presented for the structure ...

Hidden in rocks may have animal kingdom’s oldest known predator. Hidden in rocks once thought too old to contain complex life we may have found the animal kingdom’s oldest known predator. Hidden in ...

Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago and ending with the emergence of complex, multicelled life-forms almost ...