Seeking a geochemical identifier for authigenic carbonate

Seeking a geochemical identifier for authigenic carbonate.

Authigenic carbonate was recently invoked as a third major global carbon sink in addition to primary marine carbonate and organic carbon. Distinguishing the two carbonate sinks is fundamental to our understanding of Earth's carbon cycle and its role in regulating the evolution of atmospheric oxygen. Here, using microscale geochemical measurements of carbonates in Early Triassic strata, we show ...

Authigenic carbonate and the history of the global carbon cycle.

We present a framework for interpreting the carbon isotopic composition of sedimentary rocks, which in turn requires a fundamental reinterpretation of the carbon cycle and redox budgets over Earth's history. We propose that authigenic carbonate, produced in sediment pore fluids during early diagenesis, has played a major role in the carbon cycle in the past. This sink constitutes a minor compon...

Geochemical Characterization of Sulfide Mineralization in Eastern Wisconsin Carbonate Rocks

Correction: Biodiversity on the Rocks: Macrofauna Inhabiting Authigenic Carbonate at Costa Rica Methane Seeps

Fig 2, " Temperature and dissolved oxygen profile generated near Jaco Wall, Costa Rica from a CTD cast, " is incorrect and is a duplication of Fig.1, " Carbonates formations in different habitats on the Costa Rica Margin. " The authors have provided a corrected version here. Copyright: © 2015 Levin et al. This is an open access article distributed under the terms of the Creative Commons Attribu...

A Study of Geochemical Evolution of Carbonate Sediments in Zefreh Area