Abstract The Ni-Cu-platinum group element (PGE) sulfide mineralization in the 1.85 Ga Sudbury impact structure occurs two discrete environments: (1) along or near basal contact, including disseminated to semimassive an inclusion-rich sublayer, fragmental underlying anatectic footwall breccia, and veins disseminations pseudotachylitic (2) inclusion-bearing quartz diorite phase of radial concentr...

Abstract The ABM deposit, Finlayson Lake district, Yukon, Canada, is a bimodal-felsic, replacement-style volcanogenic massive sulfide (VMS) deposit (19.1 Mt @ 6.6 wt % Zn, 0.9 Cu, 2.0 Pb, 1.4 g/t Au, and 148 Ag) hosted by Late Devonian continental back-arc–related volcanosedimentary rocks of the Kudz Ze Kayah formation. VMS-related hydrothermal alteration associated with extends >1 km be...

Taking the Xi’an rail transit line orthogonal crossing ground fissure section as engineering background, structural properties and adaptability of shield tunnel lining segment under environment are carried out. Using finite element numerical simulation method, combined with relevant model tests that have been out by predecessors, damage characteristics structure action revealed. The results sho...

Geomorphological and sedimentological indicators are often used to reconstruct not only coastal evolution, but also relative sea level changes. In this work, we studied the sediments of Psatha bay (Alkyonides Gulf, Greece) beachrock outcrops in order evolution area. The drillings analysis included stratigraphy, sediment texture radiocarbon dating. Detailed mapping beachrocks was accomplished us...