Hydrothermal alteration is proximal to many base and precious metal deposits, and its
products can provide insights into the characteristics of hydrothermal systems. To be useful …

The Urals VMS province comprises a broad spectrum of variably metamorphosed deposits,
from unmetamorphosed to those without any primary ore textures, which are the results of …

When dealing with ancient subalkaline volcanic rocks, the alkali–total iron–magnesium
(AFM) diagram is of limited use in assigning a tholeiitic versus calc-alkaline affinity because …

Four sites in the western sector of Lipari Island with still active hydrothermal activity are here
considered. The petrography (mesoscopic observations and XRPD) and geochemistry …

Sedimentary basins host, among others, most of our energy and fresh-water resources: they
can be regarded as large geo-reactors in which many physical and chemical processes …

Abstract The Paleo-Asian Ocean (PAO) has been regarded as a long-lived ocean from
Neoproterozoic to early Mesozoic, and its subduction and closure built the Central Asian …

This study describes the stratigraphic features, petrology and geochemistry and
geochronology constraints of K-bentonites, ignimbrites and related volcanogenic rocks …

Quench fragmentation is a non-explosive process that occurs when molten magma is super-
cooled to glass upon contact with ambient water. This occurs when coherent lavas are …

Trois styles de gîtes en contexte de rift: Ba= minéralisation disséminée à barytine et galène
dans les grès du Trias; Pb-Ag= filon à galène argentifère occupant la faille d'Aouli, au …

The geoarchaeological study focuses on the lithological characterization and provenance
determination of the rocks of the El Pozuelo dolmens. The difficulty of identifying volcanic …