The material source and the evolution of ore-forming hydrothermal fluids Xiaojiashan gold deposits remain controversial. We carried out a mineralogical characteristics analysis, trace elements sulfur isotope composition fluid inclusion microthermometry in order to explore sources, conditions, process this deposit. Gold mineralization can be divided into three stages: quartz-pyrite stage, quartz...

The Kholodninskoe pyrite-polymetallic deposit (Baikal-Patom plateau, Russia) was discovered in 1968, but the questions of its genesis still remain controversial. It is assumed that explosive activity volcanic apparatuses southern part Baikal-Muya zone as well underwater exhalations scattered spreading back-arc basin could have most likely influenced geochemical features amagmatic deposits Bodai...

The Tethyan Himalaya is the fourth metallogenic belt discovered to date within Tibetan Plateau and contains chromite, gold Sb–polymetallic mineralization. records a series of complex tectonic–magmatic events that include break-up, subduction, collision, detachment, obduction Eastern Gondwana continent, all which generated ideal conditions for ore formation. However, this area remains under-expl...

Purpose. In the electronics industry, stibium (Sb) is an important element used in development of silicon-based devices. The metallogenic district Guelma, known for its polymetallic antimony mineralization, not currently exploited. research purpose to characterize minerals and gang formations elements required as dopants during growth monocrystalline silicon. Methods. methods include detailed g...

Marine bacteria regulate fluxes of matter and energy essential for pelagic and benthic organisms and may also be involved in the formation and maintenance of commercially valuable abyssal polymetallic nodules. Future mining of these nodule fields is predicted to have substantial effects on biodiversity and physicochemical conditions in mined areas. Yet, the identity and distributions of bacteri...

the cu, pb, zn, ag-au deposit of amensif is located on the northern flank of the western high atlas. this deposit is hosted in lower cambrian carbonate bars and is structurally controlled by ne-sw to e-w trending fault structures and is spatially associated with the permian 273 ma azegour granite. ore reserves are around 0.5 mt and grades are 3.21% zn, 0.58% pb, 0.86% cu with 83.31 ppm ag and 0...

Citation: De Smet B, Pape E, Riehl T, Bonifácio P, Colson L and Vanreusel A (2017) The Community Structure of Deep-Sea Macrofauna Associated with Polymetallic Nodules in the Eastern Part of the Clarion-Clipperton Fracture Zone. Front. Mar. Sci. 4:103. doi: 10.3389/fmars.2017.00103 The Community Structure of Deep-Sea Macrofauna Associated with Polymetallic Nodules in the Eastern Part of the Clar...