Results 1 to 10 of about 552,371 (157)

Trace element mass balance in hydrous adiabatic mantle melting: The Hydrous Adiabatic Mantle Melting Simulator version 1 (HAMMS1)

open access: yesGeochemistry, 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
doaj   +3 more sources

H2O-rich mantle melting near the slab–wedge interface

open access: yesContributions To Mineralogy and Petrology, 2019
To investigate the first melts of the mantle wedge in subduction zones and their relationship to primitive magmas erupted at arcs, the compositions of low degree melts of hydrous garnet lherzolite have been experimentally determined at 3.2 GPa over the ...
Christy Till   +2 more
exaly   +2 more sources

Petrogenesis and Sr-Nd isotope Geochemistry of Neogene Igneous Rocks in the Goloumak Area, South of Kerman, Iran [PDF]

open access: yesJournal 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

open access: yesVolcanica, 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

Evidence of Volatile‐Induced Melting in the Northeast Asian Upper Mantle

open access: yesJournal of Geophysical Research - Solid Earth, 2021
A seismic low velocity layer (LVL) above the mantle transition zone (MTZ), often thought to be caused by volatile‐induced melting, can significantly modulate planetary volatile cycles.
Yizhuo Sun   +6 more
semanticscholar   +1 more source

Lithosphere thickness controls the extent of mantle melting, depth of melt extraction and basalt compositions in all tectonic settings on Earth – A review and new perspectives

open access: yes, 2021
Basalts and basaltic rocks are the most abundant igneous rocks on the earth and their petrologic and geochemical studies have formed our knowledge base on the thermal structure and composition of the mantle with which we have developed workable models on
Y. Niu
semanticscholar   +1 more source

The Impact of Climate‐Driven Lake Level Changes on Mantle Melting in Continental Rifts

open access: yesGeophysical 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

Oceanic Slab Melting and Mantle Metasomatism [PDF]

open access: yesScience 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   +3 more sources

Petrographic and geochemical characteristics of olivine basalts from east of Nehbandan and Chahchocho (Sistan suture zone, eastern Iran) [PDF]

open access: yesپترولوژی, 2020
Olivine basalts from east of Nehbandan and Chahchocho regions belong to sodic alkaline and transitional magma series. Compared to alkaline olivine basalts (AOB), the transitional olivine basalts (TOB) have higher MgO, SiO2, Ni, Cr, Ba, Th, Pb, and U, and
Neda Mokhtari   +2 more
doaj   +1 more source

Deep mantle melting, global water circulation and its implications for the stability of the ocean mass

open access: yesProgress in Earth and Planetary Science, 2020
Oceans on Earth are present as a result of dynamic equilibrium between degassing and regassing through the interaction with Earth’s interior. We review mineral physics, geophysical, and geochemical studies related to the global water circulation and ...
S. Karato, B. Karki, Jeffrey Park
semanticscholar   +1 more source

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