Authigenic carbonate precipitation occurs within marine sediments where sulfate-dependent
anaerobic methane oxidation occurs. Geochemical and isotopic analyses of authigenic …

Ancient marine radiaxial calcite cements are commonly exploited as archives of marine
porewater properties based on the argument that they lack metabolic effects often assigned …

Ediacaran stratigraphic correlation depends on the integration of paleontological and δ 13 C
carb data. However, these data often come from different lithologies (eg, shales vs …

The identification and confirmation of bona fide Archean–Paleoproterozoic microfossils can
prove to be a challenging task, further compounded by diagenetic and metamorphic …

Current cap carbonate formation models invoke a number of different alkalinity sources for
the Neoproterozoic deglacial ocean (eg, weathering alkalinity, hydrothermal alkalinity …

Carbonate concretions hosted within organic carbon‐rich shale sequences represent
unique archives of often exceptionally preserved fossil biota. Besides providing high‐fidelity …

Stable carbon isotope geochemistry is a well-established and reliable tool for studying
metabolisms of microbial communities in the Precambrian record; however, the isotopic …

Abstract The∼ 1500 Ma Gaoyuzhuang microfossils, a representative Mesoproterozoic
cyanobacteria assemblage, are crucial for understanding and searching for early …

Carbon in rocks and its rate of exchange with the exosphere is the least understood part of
the carbon cycle. The amount of carbonate subducted as sediments and ocean crust is …

Despite the importance of palaeoecosystems with Ediacara-type fossils for the early
evolution of metazoans, only little is known about the interplay of geological and biological …