Volcanoes play a key role in the cycling of volatile metals (eg, chalcophile elements such as
Tl, Pb, and Cu and metalloids such as As, Te, and Se) on our planet. Volatile metals and …

Despite its relatively minor abundance in magmas (compared with H2O and CO2), sulfur
degassing from volcanoes is of tremendous significance. It can exert substantial influence …

The transport, degassing and atmospheric release of halogens from active volcanism on
Earth have been the focus of increasing interest over the last few decades, and have …

For 30 years, the correlation spectrometer (COSPEC) has been the principal tool for remote
monitoring of volcanic SO2 fluxes. During this time, the instrument has played a prominent …

Volcanoes are very strong sources of sulphur, acids and other gases, as well as particles,
that are of atmospheric relevance. Some gases only behave as passive tracers, others affect …

Volcanoes represent one of the most important natural sources of pollutants to the
atmosphere, both during and between eruptions (Tables 1a and 1b; Oppenheimer et …

The halogens (F, Cl, Br, I) form an important suite of tracers of igneous processes, and may
be used to track magmas from their point of origin, through their differentiation, evolution …

Masaya volcano (560 m asl), Nicaragua, resumed its degassing activity in mid-1993 with the
continuous emission of SO 2 at rates increasing from 600 metric tons (t) day–1 (7.0 kg s–1) …

Think of volcanoes, and you might picture an eruption column jetting from a summit crater,
punching through the atmosphere with roiling coils of dark ash. Or perhaps you are of a …

Selenium is a chemical element with major environmental implications, due to the extremely
narrow range between essential and toxic concentrations. Volcanoes emit significant …