Showing papers by "Jan Kramers published in 1983"

TL;DR: In this article, the authors investigated the nature of the metasomatic processes and the character of the kimberlitic fluid or liquid and that generating the MARID samples.

TL;DR: In this article, the authors described partly successful attempts to determine emplacement ages of kimberlites by U−Pb and Pb−PB methods, involving groundmass minerals with high U content (notably perovskite) and whole-rock kimbersite samples.