Recent investigations into the factors controlling the formation of Cu (± Mo) porphyry deposits—through the integration of bulk-rock geochemical and isotopic data with the composition of accessory minerals such as zircon and apatite—are yielding valuable new insights into the magmatic processes that govern ore fertility. This research focuses on an Eocene post-collisional porphyry system and its Late Cretaceous host rocks with...

For long time in the history of Earth, ferruginous conditions governed the oceans. With the rise of oxygen during the Proterozoic era and the subsequent evolution of living organisms, worldwide deposition of iron formations occurred. These sedimentary units reveal the transition into oxic oceans, passing by local and transitory euxinic conditions, especially in coastal shelves. Constraining the iron cycle and the biogeochemica...

Mafic magma is commonly associated with effusive eruptions, however several mafic volcanoes throughout the globe have produced explosive eruptions. Here we present one such volcano – Colli Albani. Colli Albani is 20 km SE of Rome and produced seven large volume ignimbrites. Field observations, mineral chemistry, and Sr and Nd isotopes in clinopyroxene show that the high potassic, silica undersaturated and CO $$_{2}$$ 2 -rich m...