The chemistry of carbon in aqueous fluids at crustal and upper-mantle conditions: experimental and theoretical constraints

CE Manning, EL Shock… - Reviews in Mineralogy …, 2013 - pubs.geoscienceworld.org
Carbon can be a major constituent of crustal and mantle fluids, occurring both as dissolved
ionic species (eg, carbonate ions or organic acids) and molecular species (eg, CO2, CO …

Paleoproterozoic granulites from the Xinghe graphite mine, North China Craton: Geology, zircon U–Pb geochronology and implications for the timing of deformation …

HF Zhang, MG Zhai, M Santosh, HZ Wang, L Zhao… - Ore Geology …, 2014 - Elsevier
The Xinghe graphite deposit is located in the north-central part of the North China Craton
(NCC) where Archean gray gneiss, metasedimentary rocks (khondalites) and mafic (high …

Vein graphite deposits: geological settings, origin, and economic significance

FJ Luque, JM Huizenga, E Crespo-Feo, H Wada… - Mineralium …, 2014 - Springer
Graphite deposits result from the metamorphism of sedimentary rocks rich in carbonaceous
matter or from precipitation from carbon-bearing fluids (or melts). The latter process forms …

CO2 outgassing during collisional orogeny is facilitated by the generation of immiscible fluids

C Groppo, F Rolfo, ML Frezzotti - Communications Earth & Environment, 2022 - nature.com
Orogenic degassing is emerging as a potentially relevant source of carbon dioxide (CO2)
from the continental crust. However, the processes of carbon mobilization are still poorly …

Granitoid magmas preserved as melt inclusions in high-grade metamorphic rocks

O Bartoli, A Acosta-Vigil, S Ferrero… - American Mineralogist, 2016 - degruyter.com
This review presents a compositional database of primary anatectic granitoid magmas,
entirely based on melt inclusions (MI) in high-grade metamorphic rocks. Although MI are …

The buffering capacity of lithospheric mantle: implications for diamond formation

RW Luth, T Stachel - Contributions to Mineralogy and Petrology, 2014 - Springer
Current models for the formation of natural diamond involve either oxidation of a methane-
bearing fluid by reaction with oxidized mantle, or reduction of a carbonate-bearing fluid (or …

Lower crustal resistivity signature of an orogenic gold system

G Heinson, J Duan, A Kirkby, K Robertson, S Thiel… - Scientific Reports, 2021 - nature.com
Orogenic gold deposits provide a significant source of the world's gold and form along faults
over a wide range of crustal depths spanning sub-greenschist to granulite grade faces, but …

[HTML][HTML] C–O–H fluid-melt-rock interaction in graphitic granulites and problems of quantifying carbon budget in the lower continental crust

BB Carvalho, O Bartoli, B Cesare - Chemical Geology, 2023 - Elsevier
Estimates on the geological carbon cycle are subject to large uncertainties that can be
reduced by thorough observation of rocks. In this contribution, we focus specifically on C–O …

Anatexis and fluid regime of the deep continental crust: New clues from melt and fluid inclusions in metapelitic migmatites from Ivrea Zone (NW Italy)

BB Carvalho, O Bartoli, F Ferri, B Cesare… - Journal of …, 2019 - Wiley Online Library
We investigate the inclusions hosted in peritectic garnet from metapelitic migmatites of the
Kinzigite Formation (Ivrea Zone, NW Italy) to evaluate the starting composition of the …

[PDF][PDF] Graphite deposit types, their origin, and economic significance

GJ Simandl, S Paradis, C Akam - … Ministry of Energy and Mines & …, 2015 - researchgate.net
Graphite is an opaque, gray-black, and soft (1-2 on Mohs hardness scale) mineral with a
metallic luster. It is characterized by a greasy feel, low density (2.09-2.23 g/cm3), high …