Results 1 to 10 of about 23,492 (308)

Evidence of metasomatism in the interior of Vesta [PDF]

Nature Communications, 2020
AbstractDiogenites are a group of meteorites that are derived from the interior of the largest protoplanet Vesta. They provide a unique opportunity to understanding together the internal structure and dynamic evolution of this protoplanet. Northwest Africa (NWA) 8321 was suggested to be an unbrecciated noritic diogenite meteorite, which is confirmed by
Jian-Feng Gao, Hisayoshi Yurimoto, Hisayoshi Yurimoto, Minami Kuroda, Ye He, Jia Liu, Jia Liu, Li-Hui Chen, Li-Hui Chen, Naoya Sakamoto, Ai-Cheng Zhang, Ai-Cheng Zhang, Liping Qin, Liping Qin, Noriyuki Kawasaki, Huiming Bao, Huiming Bao   +16 more
openaire   +5 more sources

Mafic alkaline metasomatism in the lithosphere underneath East Serbia: evidence from the study of xenoliths and the host alkali basalts [PDF]

, 2010
Effects of mafic alkaline metasomatism have been investigated by a combined study of the East Serbian mantle xenoliths and their host alkaline rocks.
Cvetkovic, V., Downes, Hilary, Hock, V., Lazarov, M., Prelevic, D.   +4 more
core   +3 more sources

Oceanic Slab Melting and Mantle Metasomatism [PDF]

Science Progress, 2001
Modern plate tectonic brings down oceanic crust along subduction zones where it either dehydrates or melts. Those hydrous fluids or melts migrate into the overlying mantle wedge trigerring its melting which produces arc magmas and thus additional continental crust. Nowadays, melting seems to be restricted to cases of young (<50 Ma) subducted plates.
Scaillet, Bruno, Prouteau, Gaëlle
openaire   +5 more sources

Extended Deep Earth Water Model for predicting major element mantle metasomatism

Geochimica et Cosmochimica Acta, 2019
Fang Huang, Dimitri A. Sverjensky
openalex   +3 more sources

Lawsonite metasomatism and trace element recycling in subduction zones

Journal of Metamorphic Geology, 2014
Alberto Vitale Brovarone, Olivier Alard, Olivier Beyssac, Laure Martin, M. Picatto   +4 more
exaly   +3 more sources

The role of continental subduction in mantle metasomatism and carbon recycling revealed by melt inclusions in UHP eclogites

Science Advances, 2023
Subduction is the main process that recycles surface material into the mantle. Fluids and melts derived by dehydration and partial melting reactions of subducted continental crust, a major reservoir of volatiles (i.e., H2O and CO2) and incompatible ...
A. Borghini, G. Nicoli, S. Ferrero, P. O'Brien, O. Laurent, L. Remusat, G. Borghini, S. Milani   +7 more
semanticscholar   +1 more source

Deformation and metasomatism recorded by single-grain apatite petrochronology

Geology, 2022
The timing and processes of ductile deformation and metasomatism can be documented using apatite petrochronology. We integrated microstructural, U-Pb, and geochemical analyses of apatite grains from an exhumed mylonitic shear zone in the St.
M. Odlum, D. Levy, D. Stockli, L. Stockli, J. DesOrmeau   +4 more
semanticscholar   +1 more source

Low‐Degree Melt Metasomatic Origin of Global Upper Mantle Fe Isotope Fractionation

Geophysical Research Letters, 2023
The upper mantle is heterogeneous in Fe isotope compositions, but the origin of the heterogeneity needs understanding. Recent studies on oceanic basalts demonstrate that the upper mantle Fe isotope heterogeneity results from low‐degree melt metasomatism.
Pengyuan Guo, Yaoling Niu, Pu Sun, Shuo Chen, Yanhong Chen, Meng Duan, Xiaohong Wang, Hongmei Gong   +7 more
doaj   +1 more source

Differentiation between carbonate and silicate metasomatism based on lithium isotopic compositions of alkali basalts

Geology, 2022
Carbonate and silicate metasomatism occurring in subduction zones is an important mechanism underlying mantle heterogeneity and compositional diversity of mantle-derived rocks.
Dong-Bo Tan, Yilin Xiao, Li‐Qun Dai, He Sun, Yangyang Wang, Hai-Ou Gu   +5 more
semanticscholar   +1 more source

Preferential Formation of Chlorite Over Talc During Si‐Metasomatism of Ultramafic Rocks in Subduction Zones

Geophysical Research Letters, 2022
Talc formation via silica‐metasomatism of ultramafic rocks is believed to play key roles in subduction zone processes. Yet, the conditions of talc formation remain poorly constrained.
E. Codillo, F. Klein, H. Marschall
semanticscholar   +1 more source