José F. Barrenechea

TL;DR: In this paper, the similarities and differences between metamorphic graphite (formed in situ from organic matter) and fluid-deposited graphite are discussed, where the authors focus on major, volumetrically significant, worldwide concentrations of graphite.

TL;DR: In this article, it was reported that huge concentrations of highly crystalline graphite can precipitate from moderate-temperature fluids, such as fayalite-magnetite-quartz buffered conditions.

TL;DR: In this article, the authors focused on the western sector of the basin, where a total of seven depositional sequences (DS-======1 to DS-7) have been identified.

TL;DR: In this article, the carbon isotope ratios in fluid-deposited graphite are used for unravelling the ultimate origin of carbon (organic matter, mantle or carbonates) and help to constrain the fluid history and the mechanisms involved in graphite deposition.

TL;DR: In this paper, the origin of carbon, the mechanisms of transport, and the factors controlling graphite deposition are discussed in relation to their geological settings, and graphite precipitation can occur by cooling, water removal by retrograde hydration reactions, or reduction when the CO2-rich fluid passes through relatively low fO2 rocks.