Precambrian Time

Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago ...
insider.si.edu

The Precambrian Earth : tempos and events / edited by P.G. Eriksson ... [et al.]

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.
Science Daily

Ancient, hydrogen-rich waters deep underground around the world: Waters could support isolated life

A team of scientists has mapped the location of hydrogen-rich waters found trapped kilometers beneath Earth's surface in rock fractures in Canada, South Africa and Scandinavia. Common in Precambrian ...
KQED

California's (and the World's) Oldest Rocks

Stay on top of what’s happening in the Bay Area with essential Bay Area news stories, sent to your inbox every weekday. The Bay Bay Area-raised host Ericka Cruz Guevarra brings you context and ...
SpaceRef

Hydrogeologic Controls on Episodic H2 Release from Precambrian Fractured Rocks–Energy for Deep Subsurface Life on Earth and Mars

Dissolved H2 concentrations up to the mM range and H2 levels up to 9-58% by volume in the free gas phase are reported for groundwaters at sites in the Precambrian shields of Canada and Finland. Along ...
PBS

Precambrian Life

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 ...