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 +23 more sources
Europium in plagioclase-hosted melt inclusions reveals mantle melting modulates oxygen fugacity [PDF]
Nature CommunicationsTo gain insights into the composition and heterogeneity of Earth’s interior, the partial pressure of oxygen (oxygen fugacity, or fO2) in igneous rocks is characterized. A surprising observation is that relative to reference buffers, fO2s of mantle melts (
Nicholas Dygert +2 more
doaj +2 more sources
Deep mantle anomalies block early Earth melting, challenging a primordial origin [PDF]
Scientific ReportsEarth’s deep mantle hosts enigmatic structures known as Large Low Velocity Provinces (LLVPs), which sit atop the core–mantle boundary and influence mantle dynamics and plume generation.
Arnab Roy +2 more
doaj +2 more sources
Geochemistry, Geophysics, Geosystems, 2014 A numerical mass balance calculation model for the adiabatic melting of a dry to hydrous peridotite has been programmed in order to simulate the trace element compositions of basalts from mid‐ocean ridges, back‐arc basins, ocean islands, and large ...
Jun-Ichi Kimura, Hiroshi Kawabata
exaly +2 more sources
A universal concept for melting in mantle upwellings. [PDF]
NatureDeep mantle melting marks the onset of Earth differentiation1, yet a unifying framework for how buoyancy-driven mantle upwellings initiate melting and how such incipient melts evolve within the asthenosphere has remained elusive. Here we show that the first melts generated in any solid-state mantle upwelling are kimberlitic CO₂-rich silicate melts that
Schmidt MW, Paneva N, Giuliani A.
europepmc +4 more sources
The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +9 more sources
Global-scale modelling of melting and isotopic evolution of Earth's mantle: melting modules for TERRA [PDF]
Geoscientific Model Development, 2016 Many outstanding problems in solid-Earth science relate to the geodynamical explanation of geochemical observations. Currently, extensive geochemical databases of surface observations exist, but satisfying explanations of underlying mantle processes are ...
H. J. van Heck +3 more
doaj +2 more sources
Petrogenesis and Sr-Nd isotope Geochemistry of Neogene Igneous Rocks in the Goloumak Area, South of Kerman, Iran [PDF]
Journal of Sciences, Islamic Republic of Iran, 2023 The study area is near Goloumak village, 30 km south of Kerman. These rock units consist of acidic rhyolite and dacite, as well as intermediate andesite, basalt, and trachy-andesite.
Farzaneh Arzhangnegad +3 more
doaj +1 more source
pyMelt: An extensible Python engine for mantle melting calculations
Volcanica, 2022 Modelling the melting of Earth’s mantle is crucial for understanding the distribution of volcanic activity on Earth and for testing models of mantle convection and mantle lithological heterogeneity.
Simon Matthews +2 more
doaj +1 more source
The Impact of Climate‐Driven Lake Level Changes on Mantle Melting in Continental Rifts
Geophysical Research Letters, 2023 Climate cycles fundamentally control surface processes that affect the distribution of water and sediment, and their associated loads, across the Earth's surface.
Liang Xue +4 more
doaj +1 more source