Preface:
Creation of this volume of the EMU Notes in Mineralogy Series was motivated by at least
two important factors. Firstly, we wished to celebrate the success of the two editions of
the International winter school ‘MElting and fluid/melt-rock REactions in the MAntle
-MEREMA’. Despite the great uncertainties due to the global pandemic (2020–2021),
the school attracted many young researchers from all over the world thanks to the stimu-
lating scientific program. The excellent intellectual milieu led a group of top-level lec-
turers to accept the invitation to publish their cutting-edge research in this volume.
Although finalizing the chapters took longer than expected, we have ultimately compiled
an outstanding selection of contributions that provides readers who have broad interests
with information on how petrology and geochemistry, combined with geophysics, can
shed light on mantle dynamics. Secondly, we aimed to present the current debated ques-
tions concerning mantle dynamics with key studies, which trace an ideal path from the
bulk Earth composition (chapter 1) to mantle heterogeneity (chapters 2 and 3), and
how these aspects are reflected in the shallow portion of the mantle and derived melts
(chapters 4–7). We extend our sincere thanks to the authors of these chapters.