The maximum potential temperature of the Archaean mantle is poorly known, and is best
constrained by the MgO contents of komatiitic liquids, which are directly related to eruptive …

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 …

North-central Cameroon is part of the Central African Fold Belt (CAFB) to the north of the
Congo craton. In pre-drift reconstructions of Pangea, the CAFB matches with the Borborema …

The Central Asian Orogenic Belt (CAOB) is known as the most important site of juvenile
crustal growth during the Phanerozoic. In order to examine the processes of such crustal …

Birimian terranes from West Africa (Mauritania, Senegal, Ivory Coast, Burkina Faso, Niger)
comprise two major units: a dominantly mafic bimodal volcanic unit and a volcano‐detrital …

The eastern part of the North China Craton in eastern Hebei Province contains
metamorphosed and deformed Neoarchaean to earliest Palaeoproterozoic rocks (∼ 2550 …

THE lower part of most Archaean greenstone sequences is dominated by interlayered
basaltic and komatiitic (ultrabasic) flows. These two magma types are petrologically and …

Many hitherto puzzling features of the isotope and trace-element geochemistry of the Earth's
mantle and crust can be explained if Earth history is punctuated by episodes of enhanced …

A combined solution for the two major terrestrial lead paradoxes has been sought. These
are the 'future'paradox (upper crustal and upper mantle Pb isotope compositions plot in the …

When magma ascends turbulently through continental crust, heat transfer can be rapid and
the wall rocks of the conduit can melt and be assimilated into the magma. Calculations are …