Individual ultramafic macrolayers comprising chromitite and pyroxenite have sharp intrusive contacts against anorthositic rocks both above and below, and in several cases are younger than layers ...

However, because the sediments had thick layers of lava flows (molten rock) poured over them at ... Journal reference: ‘Lower-crustal intrusion on the North Atlantic continental margin ...

A large Reduced Intrusion-Related Gold System (RIRGS) has been confirmed and extended at the May-Qu target within the Mid-Cretaceous, Tombstone suite, Bos Stock. This RIRGS system is 22 km from ...