Major gap in Earth's rock record likely due to tectonics—not glaciers

The Great Unconformity is a major gap in Earth's geologic record. The missing layer between Precambrian and Cambrian rocks ...
Morning Overview on MSN

Geologists uncovered Earth’s oldest water, but dared not drink it

Researchers working in a Canadian mine have sampled water that has been sealed inside Precambrian rock fractures for up to ...
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 ...
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.