▪ Abstract This paper reviews the Precambrian history of atmospheric oxygen, beginning
with a brief discussion of the possible nature and magnitude of life before the evolution of …

Sulfur, with an atomic weight of 32.06, has four stable isotopes. By far the most abundant is
32 S, representing around 95% of the total sulfur on Earth. The next most abundant isotope …

Microbial dissimilatory sulfur metabolism utilizing dissimilatory sulfite reductases (Dsr)
influenced the biochemical sulfur cycle during Earth's history and the Dsr pathway is thought …

The nine editions of Stable Isotope Geochemistry have appeared over a time span of nearly
50 years. The first edition (1973) appeared as a slim book of 135 pages. Due to the rapid …

The main terminal processes of organic matter mineralization in anoxic Black Sea sediments
underlying the sulfidic water column are sulfate reduction in the upper 2–4 m and …

Sixteen short sediment cores were recovered from the upper edge (UEO), within (WO) and
below (BO) the oxygen minimum zone (OMZ) off Peru during cruise 147 of R/V Sonne …

▪ Abstract Throughout the first 90 years after their discovery, sulfate-reducing bacteria were
thought to be strict anaerobes. During the last 15 years, however, it has turned out that they …

The phylogenetic positions of sulfate-reducing organisms, as revealed from comparisons of
small-subunit ribosomal RNA (SSU rRNA), are spread over both the Archaeal and Bacterial …

Coexisting dissolved sulfide and sulfate from hypersulfidic interstitial waters of a 380-m-long
sediment core show a large isotopic difference of up to 72‰ caused by in situ microbial …

Sulfur isotope effects produced by microbial dissimilatory sulfate reduction are used to
reconstruct the coupled cycling of carbon and sulfur through geologic time, to constrain the …