Early arc crust formation preserved in the Grenadines archipelago, southern Lesser Antilles arc [PDF]
Royal Society Open ScienceIntra-arc diversity in volcanic activity and composition is ubiquitous, but its underlying causes remain largely unresolved in many settings. In this work, we examine such variability in the Grenadines archipelago, southern Lesser Antilles arc.
Michal Camejo-Harry +4 more
doaj +2 more sources
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 +7 more sources
Geophysical Monograph Series, Page 263-304., 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.
Jessica H. Whiteside +3 more
wiley +5 more sources
Evidence for oxygen-conserving diamond formation in redox-buffered subducted oceanic crust sampled as eclogite [PDF]
Nature Communications, 2022 Cratonic eclogite is the product of oceanic crust subduction into the subcontinental lithospheric mantle, and it also is a fertile diamond source rock.
Sonja Aulbach, Thomas Stachel
doaj +2 more sources
Pristine helium from the Karoo mantle plume within the shallow asthenosphere beneath Patagonia [PDF]
Nature CommunicationsMantle xenoliths usually represent fragments derived from the depleted and degassed lithospheric mantle with 3He/4He isotope ratios (6 ± 1 RA) lower than those of mid-ocean ridge basalts (8 ± 1 RA).
Tiago Jalowitzki +10 more
doaj +2 more sources
Rare earth element characteristics of pyrope garnets from the Kaavi-Kuopio kimberlites - implications for mantle metasomatism [PDF]
Bulletin of the Geological Society of Finland, 2005 Peridotitic garnet xenocrysts from five kimberlite pipes in the Kaavi-Kuopio area of eastern Finland have been studied using major and trace element geochemistry to obtain information on the stratigraphy, compositional variability and evolutionary ...
M. Lehtonen
doaj +1 more source
Geosciences, 2020 Geochemical characteristics of middle ocean ridge basalts (MORBs) testify partial melting of spinel-peridotite mixed with a few amounts of garnet-pyroxenite.
Vittorio Scribano, Serafina Carbone
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2022 Coupled U‐Pb and trace‐element analyses of accessory phases in crustal xenoliths from the Late Devonian Udachnaya kimberlite (Siberian craton, Russia) are used to constrain Moho temperature and crustal heat production at the time of kimberlite eruption ...
Francisco E. Apen +6 more
doaj +1 more source
Литосфера, 2018 Xenocrysts and megacrysts hosted in the rocks of Early Cretaceous olivine-basalt-basanite-nephelinite association that outcropped in erosion crater of Makhtesh Ramon (Natural Reserve of Mishmar ha-Nagev, Israel) are the topic of the current research ...
Zinovi Yudalevich, Yevgeny Vapnik
doaj +1 more source
Lithosphere beneath the Evolving Tianshan Orogen: Constraints from Xenoliths
Lithosphere, 2022 The Ortosuu and Uchkuduk regions of the Tianshan orogen contain a volumetrically small series of basaltic rocks erupted primarily during the late Mesozoic-Paleogene. Petrology, chemical composition, and P-T geotherm data from xenoliths within the basalts
Nancy Hui-Chun Chen +2 more
doaj +1 more source