Pressure‐Induced sp 2 ‐sp 3 Transitions in Carbon‐Bearing Phases
Geophysical Monograph Series, Page 1-9., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Sergey S. Lobanov +1 more
wiley +6 more sources
Geochemistry, Geophysics, Geosystems, 2021 In our study (Bauville & Yamato, 2021, https://doi.org/10.1029/2020gc009280), we derived simple formulas for pressure‐to‐depth conversion that allow (or not) to take into account deviatoric stresses.
A. Bauville, P. Yamato
doaj +1 more source
Fossil biomass preserved as graphitic carbon in a late paleoproterozoic banded iron formation metamorphosed at more than 550°C [PDF]
, 2019 Metamorphism is thought to destroy microfossils, partly through devolatilization and graphitization of biogenic organic matter. However, the extent to which there is a loss of molecular, elemental and isotope signatures from biomass during high ...
De Gregorio, BT +9 more
core +2 more sources
MINERALOGY OF HOST ROCKS OF THE OSINOVSKOE GOLD-QUARTZ DEPOSIT (CENTRAL URALS) [PDF]
Минералогия, 2023 The paper describes the mineralogy of mica shales of the Osinovskoe gold deposit in the Central Urals. Our studies unraveled the role of dynamometamorphism in the transformation of primary rocks and allowed the characterization of their metasomatic ...
N.P. Safina, L.Ya. Kabanova, I.A. Blinov
doaj +1 more source
Constraining the long-term evolution of the slip rate for a major extensional fault system in the central Aegean, Greece, using thermochronology [PDF]
, 2006 The brittle/ductile transition is a major rheologic boundary in the crust yet little is known about how or if rates of tectonic processes are influenced by this boundary.
Altherr +57 more
core +1 more source
Time's arrow, time's cycle: Granulite metamorphism and geodynamics
Mineralogical magazine, 2019 Although the thermal evolution of the mantle before c. 3.0 Ga remains unclear, since c. 3.0 Ga secular cooling has dominated over heat production—this is time's arrow.
Michael Brown, T. Johnson
semanticscholar +1 more source
A black shale protolith for gold-tellurium mineralisation in the Dalradian Supergroup (Neoproterozoic) of Britain and Ireland [PDF]
, 2017 The Dalradian Supergroup of Britain and Ireland is mineralised by gold-tellurium vein deposits. The host succession includes carbonaceous, pyritic shales (pelites) which were a source of trace elements, including gold and tellurium.
Armstrong, J. +5 more
core +1 more source
Литосфера, 2018 Object of study. The paper presents the mineralogical and petrographic study results of metamorphosed and metasomatized komatiites and komatiitic peridotites from the Ozerki soapstone deposit and Pentinsuo prospect, located in the Kostomuksha greenstone ...
Ekaterina E. Klimovskaya +1 more
doaj +1 more source
MARBLE DIKES IN THE OLKHON COMPOSITE TERRANE (WEST BAIKAL AREA)
Геодинамика и тектонофизика, 2022 Linear or lens-like carbonate (marble) and carbonate-silicate bodies among gabbro and amphibolites within the Krestovsky subterrane of the Olkhon composite terrane (West Baikal Area) are identified as dikes.
E. V. Sklyarov +2 more
doaj +1 more source
The effect of aqueous alteration and metamorphism in the survival of presolar silicate grains in chondrites [PDF]
, 2008 Relatively small amounts (typically between 2-200 parts per million) of presolar grains have been preserved in the matrices of chondritic meteorites.
Bischoff +31 more
core +2 more sources