Tracing the sources of sulfur in Beijing soils with stable sulfur isotopes
نویسندگان
چکیده
منابع مشابه
Tracing sources of sulfur in the Florida Everglades.
We examined concentrations and sulfur isotopic ratios (34S/32S, expressed as delta34S in parts per thousand [/1000] units) of sulfate in surface water, ground water, and rain water from sites throughout the northern Everglades to establish the sources of sulfur to the ecosystem. The geochemistry of sulfur is of particular interest in the Everglades because of its link, through processes mediate...
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Abrupt disappearance of mass-independent fractionation of sulfur isotopes (MIF-S) from the geologic record and an apparent ingrowth in seawater sulfate around 2.45 billion years ago (Ga) signal the first large-scale oxygenation of the atmosphere [the Great Oxygenation Event (GOE)]. Pre-GOE O2 production is evident from multiple other terrestrial and marine proxies, but oceanic O2 concentrations...
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ژورنال
عنوان ژورنال: Journal of Geochemical Exploration
سال: 2016
ISSN: 0375-6742
DOI: 10.1016/j.gexplo.2015.11.010