Jan Kramers

TL;DR: The Scottish record is in line with previous studies of past atmospheric lead deposition, however, the Canadian deposit suggests that the wind derived, pre-industrial lead, is less radiogenic as previously implied using sediment archives.

TL;DR: In this paper, a quantitative geochemical model was developed for the formation and evolution of the principal terrestrial reservoirs (the mantle, core, D, continental crust) via mass fluxes that include rare gas and respective parent isotopes, also Sm, Nd, Lu, Hf, Rb, Sr, W isotopes and siderophile elements.

TL;DR: In this paper, a new model for Archaean granitoid magmatism is presented which reconciles the most important geochemical similarities and differences between tonalite-trondhjemite-granodiorite (TTG) and potassic granitoids.

TL;DR: A detailed geological background to a series of hominin fossils retrieved from the newly investigated deposit of Cooper's D is provided, including uranium-lead ages for speleothem material associated with A. robustus and the paleoenvironment is reconstructed as predominantly grassland, with nearby woodlands and a permanent water source.

TL;DR: In this article, the authors show that syn-to-postdeformational granitic metamorphism occurred at distinct times in different parts of the Limpopo belt over a span of at least 70 m.y.