The continents primarily consist of cratons and orogenic belts, of which cratons predominantly originated 1.8 billion years ago, serving as crucial constituents of the Earth’s surface. Most of the ...

This separation led to the illusion as if the plate tectonics theory is not applicable to Precambrian geology, particularly in interpreting the fundamental geological characteristics of Archean ...

Object Details Author Eriksson, P. G Contents The early earth / editor, D.R. Nelson. Earth's formation and first billion years / D.R. Nelson. The early Precambrian stratigraphic record of large ...

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 ...

The Journal of Geology, Vol. 101, No. 2, 100th Anniversary Symposium: Evolution of the Earth's Surface (Mar., 1993), pp. 235-243 (9 pages) The Precambrian record of carbonate and evaporite ...

The Journal of Geology, Vol. 94, No. 2 (Mar., 1986), pp. 145-166 (22 pages) The Indian Precambrian continental crust exhibits a variety of geological features fashioned at different times by different ...

In contrast to the studied Archean rocks, late-Precambrian sedimentary basins on Earth contain a wide variety of rocks whose organic material is relatively well preserved and can be examined for ...

Fast-forward 70 years, and new microfossils have pushed that timeline well into the Archean Eon. Most assume that the first cells were likely simpler than the 1 to 2 micrometer-wide bacteria we ...

My research has concentrated in several fields in petrology. My major fields of interest include: Geologic evolution of the Wyoming Province: The Wyoming province is one of the oldest Archean ...