An outstanding feature of the Archaean Eon is that it was a time of major production and
preservation of continental lithosphere. Here I review the geological, geochemical and basic …

Studies investigating the structure and diversity of Earth's record of life older than 3.2 Ga are
restricted to two locations worldwide in which sedimentary rocks have escaped regional …

Iron formations are economically important sedimentary rocks that are most common in
Precambrian sedimentary successions. Although many aspects of their origin remain …

The evolution of oxygenic photosynthesis is a pivotal event in Earth's history because the O2
released fundamentally changed the planet's redox state and facilitated the emergence of …

Critical to the origin of life are the ingredients of life, of course, but also the physical and
chemical conditions in which prebiotic chemical reactions can take place. These factors …

The granite-and-greenstone terrains that dominate upper crust formed from about 3.6 to
about 2.6 Ga, and record magmatic and tectonic processes very different from those of a …

Although the notion of an early origin and diversification of life on Earth during the Archaean
eon has received increasing support in geochemical, sedimentological and …

The unique and evolving nature of the Precambrian geological environment in many ways
was responsible for significant differences between Precambrian clastic sedimentary …

How and when continents grew and plate tectonics started on Earth remain poorly
constrained. Most researchers apply the modern plate tectonic paradigm to problems of …

ABSTRACT The Swaziland Supergroup in the Barberton Greenstone Belt (BGB) consists of
a lower, predominantly volcanic sequence, the Onverwacht Group; a middle volcaniclastic …