... of these reactions for understanding present-day climate change that is driven by anthropogenic emission of CO 2 . The transfer of CO 2 between gas and water and silicate melts therefore plays an outsized role in connecting its various “spheres.” Metamorphic and magmatic CO 2 inputs from Earth's interior enter...

... ) and that the amount of carbon in Earth's interior (mantle and core) is thought to be at least three million times greater than the amount in the atmosphere ( Dasgupta and Hirschmann 2010 ). Chemical reactions involving carbon in surface reservoirs are “visible” in the sense that many of the reactants and products can...

... dense magnesium silicate sample synthesis electron microprobe analysis X-ray diffraction crystal structure Transportation of water into the Earth's deep interior by the subduction of oceanic slabs plays a key role in the geodynamics of our planet through its impact on the rheology...

.... , Mookherjee , M. , Dasgupta , R. , Gosh , D.B. , and Karki , B.B. ( 2018 ) Nitrogen content in the Earth's outer . Geophysical Research Letter , 46 , 89 – 98 . Birch , F. ( 1952 ) Elasticity and constitution of the Earth's interior . Journal of Geophysical Research , 57...

...Oliver Tschauner Abstract This article is dedicated to the occurrence, relevance, and structure of minerals whose formation involves high pressure. This includes minerals that occur in the interior of the Earth as well as minerals that are found in shock-metamorphized meteorites and terrestrial...

... of hydrous magnesium silicates in the mantle transition zone . Physics of the Earth and Planetary Interiors , 66 , 307 – 312 . Kanzaki , M. , Stebbins , J. , and Xue , X. ( 1992 ) Characterization of crystalline and amorphous silicates quenched from high-pressure by 29 Si MAS NMR...

... of the Earth and Planetary Interiors , 179 , 157 – 163 . Ozawa , H. , Hirose , K. , Yonemitsu , K. , and Ohishi , Y. ( 2016 ) High-pressure melting experiments on Fe–Si alloys and implications for silicon as a light element in the core . Earth and Planetary Science Letters , 456...

... Science Letters , 479 , 241 – 251 . Dasgupta , R. , and Hirschmann , M.M. ( 2010 ), The deep carbon cycle and melting in Earth's interior . Earth and Planetary Science Letters , 298 , 1 – 13 . DePaolo , D.J. ( 2015 ) Sustainable carbon emissions: The geologic perspective...

... into the deep interior, transporting a significant amount of hydrogen to deeper regions. Therefore, a better understanding of this binary system may help elucidate the model geodynamic processes associated with the deep water cycling in the Earth. H 2 O, which is present as H + or OH − in minerals...

... mechanism to transport water into Earth's interior. The alteration of oceanic lithosphere leads to the formation of OH-rich serpentine minerals at the expense of olivine and pyroxene. Upon subduction, water might be successively released as a free fluid at ~200 km depth after the breakdown of serpentine...

... the Cambrian explosion of life on Earth (e.g., Stern, 2016 ; Sobolev and Brown, 2019 ). The subject of geodynamics can be schematically represented by the time-depth diagram (see Fig. 1 ) covering the entire Earth’s history and interior. In theory, the entire diagram should be “covered” by data...

...Itaru Ohira; Jennifer M. Jackson; Natalia V. Solomatova; Wolfgang Sturhahn; Gregory J. Finkelstein; Seiji Kamada; Takaaki Kawazoe; Fumiya Maeda; Naohisa Hirao; Satoshi Nakano; Thomas S. Toellner; Akio Suzuki; Eiji Ohtani Abstract Hydrogen transport from the surface to the deep interior...

.... They deliver crustal material to Earth's interior, where re-equilibration with the surrounding mantle takes place mainly via complex physical mechanisms and chemical reactions (e.g., Saunders and Tarney 1984 ; Keppler 1996 ; Motti et al. 2004 ; Bebout 2014 ). Material that is not recycled in the upper few...

.... , Irifune , T. , Zhou , C. , and Higo , Y. ( 2015 ) Sound velocities of Fe 3 Al 2 Si 3 O 12 almandine up to 19 GPa and 1700 K . Physics of the Earth and Planetary Interiors , 246 , 1 – 8 . Bass , D.J. , and Kanzaki , M. ( 1990 ) Elasticity of majorite-pyrope solid solution...

...) to Fe 7 C 3 -Fe 3 C interface (light gray, low carbon content). ( c ) The Fe 7 C 3 (121) peaks in several XRD patterns collected from the interior of the Fe 7 C 3 layer free of Fe 3 C peaks shifted to higher 2θ as the carbon content increased. ( d ) Overall patterns of Line 1 at the distant edge...

...Chao-shuai Zhao; He-ping Li; Po-fei Chen; Jian-jun Jiang Abstract Calcite (CaCO 3 ) is widely considered an important carbon carrier in the Earth's interior. Laboratory measurements of the velocities and elastic properties of calcite are important for understanding the deep carbon cycle. The sound...

... , E. , Suzuki , T. , and Funakoshi , K.-i. ( 2009 ) “Carbon in the core” revisited . Physics of the Earth and Planetary Interiors , 174 ( 1-4 ), 202 – 211 . Nakajima , Y. , Takahashi , E. , Sata , N. , Nishihara , Y. , Hirose , K. , Funakoshi , K.-i...

...Bjorn Mysen Abstract We wished to advance the knowledge of speciation among volatiles during melting and crystallization in the Earth's interior; therefore, we explored the nature of carbon-, nitrogen-, and hydrogen-bearing species as determined in COHN fluids and dissolved in coexisting...

... . American Mineralogist , 96 ( 7 ), 1158 – 1165 . Nakajima , Y. Takahashi , E. Suzuki , T. , and Funakoshi , K.-i.   2009 “Carbon in the core” revisited . Physics of the Earth and Planetary Interiors , 174 ( 1 ), 202 – 211 . Prescher , C. Dubrovinsky , L...