It is often acknowledged that the search for life on Mars might produce false positive results,
particularly via the detection of objects, patterns or substances that resemble the products of …

The late Miocene evolution of the Mediterranean Basin is characterized by major changes in
connectivity, climate and tectonic activity resulting in unprecedented environmental and …

Cable bacteria of the family Desulfobulbaceae form centimeter-long filaments comprising
thousands of cells. They occur worldwide in the surface of aquatic sediments, where they …

Reconstructions of coupled carbon, oxygen, and sulfur cycles rely heavily on sedimentary
pyrite sulfur isotope compositions (δ34Spyr). With a model of sediment diagenesis, paired …

It has been hypothesized that the overall size of—or efficiency of carbon export from—the
biosphere decreased at the end of the Great Oxidation Event (GOE)(ca. 2,400 to 2,050 Ma) …

The marine sulfate inventory represents the largest standing pool of electron acceptors,
which, via microbial sulfate reduction, is responsible for roughly half of the organic matter …

The role of ocean anoxia as a cause of the end-Triassic marine mass extinction is widely
debated. Here, we present carbonate-associated sulfate δ34S data from sections spanning …

Cable bacteria of the family Desulfobulbaceae couple spatially separated sulfur oxidation
and oxygen or nitrate reduction by long-distance electron transfer, which can constitute the …

Sulfate often behaves conservatively in the oxygenated environments but serves as an
electron acceptor for microbial respiration in a wide range of natural and engineered …

The transition of the martian climate from the wet Noachian era to the dry Hesperian (4.1–3.0
Gya) likely resulted in saline surface waters that were rich in sulfur species. Terrestrial …