Results 121 to 130 of about 59,876 (275)

Magma oceans and enhanced volcanism on TRAPPIST-1 planets due to induction heating

, 2017
Low-mass M stars are plentiful in the Universe and often host small, rocky planets detectable with the current instrumentation. Recently, seven small planets have been discovered orbiting the ultracool dwarf TRAPPIST-1\cite{Gillon16,Gillon17}. We examine
Fossati, L., Guedel, M., Johnstone, C. P., Khodachenko, M. L., Kislyakova, K. G., Lammer, H., Noack, L., Odert, P., Zaitsev, V. V.   +8 more
core   +1 more source

Shock-compressed MgSiO_3 glass, enstatite, olivine, and quartz: Optical emission, temperatures, and melting [PDF]

, 2004
Optical emission of MgSiO_3 glass, enstatite, olivine, and quartz under shock wave compression was investigated with optical pyrometry at discrete wavelengths ranging from visible to near infrared.
Ahrens, Thomas J., Akins, Joseph A., Asimow, Paul D., Luo, Sheng-Nian   +3 more
core  

Melting Behavior of B1 FeO Up To 186 GPa: Existence of FeO‐Rich Melts in the Lowermost Mantle

Geophysical Research Letters
FeO is an important component in both mantle silicates and core iron alloys. Understanding its melting behavior and physical properties is crucial for exploring the chemistry and physics of our planet.
Suyu Fu, Kei Hirose
doaj   +1 more source

Insights on Upper Mantle Melting, Rheology, and Anelastic Behavior From Seismic Shear Wave Tomography. [PDF]

Geochem Geophys Geosyst, 2018
Cobden L, Trampert J, Fichtner A.
europepmc   +1 more source

Recycled oceanic gabbro produced the depleted component in hotspot magma from the Comei large igneous province in the Kerguelen mantle plume

Communications Earth & Environment
Depleted components in hotspot magma sources remain enigmatic. Zircon δ18O values (3.97–4.80‰, average 4.38‰) from depleted gabbros in the Comei province (Kerguelen plume) are lower than mantle zircons, correlating negatively with 206Pb/U238ages ...
Long Chen, Yaying Wang, Ian Somerville, Yuan Zhong, Xiaohui Li, Dongyong Li, Jianghong Deng, Shengyao Yu, Guochao Sun, Zifu Zhao, Sanzhong Li   +10 more
doaj   +1 more source

Combustion and Pyrolysis EA‐IRMS Techniques to Determine the δ2H of Diamonds

Rapid Communications in Mass Spectrometry, Volume 40, Issue 10, 30 May 2026.
ABSTRACT Rationale Diamonds are generally considered to be metasomatic minerals originating from the Earth's mantle. They formed through the interaction of carbon‐bearing fluids or melts with the surrounding deep lithology. Most knowledge about the formation of diamonds comes from studying their mineral inclusions or stable isotopes.
François Fourel, Christophe Lécuyer, Emilie Thomassot, Etienne Deloule, Charles Ojeimi   +4 more
wiley   +1 more source

Multiscale Analysis of Bouguer Gravity Anomalies: Unveiling the Deep Structure of Eastern Himalayan Syntaxis Faults

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
The Eastern Himalayan Syntaxis (EHS), which is located at the southeastern edge of the Qinghai–Xizang Plateau, is a key region for understanding mountain‐building and subduction processes. Bouguer gravity anomalies derived from the Earth Gravitational Model 2008 free‐air anomaly data following topographic corrections, were analyzed.
Rui Zhang, Guiju Wu, Jian Wang, Yufei Xi, Hongtao Hao, Qinghong Long   +5 more
wiley   +1 more source

Onset of slab mantle melting in Earth's lower mantle: Evidence from ferropericlase in superdeep diamonds. [PDF]

Sci Adv
Ni P, Shirey SB, Walter MJ, Czas J, Novella D, Nestola F, Kueter N, Smith EM, Stachel T, Pearson DG, Steele A, Gardner LL, Jacobsen SD, Harte B, Harris JW, Shahar A.   +15 more
europepmc   +1 more source

Lithospheric Mantle Heterogeneity Drives Delayed Magmatism and Wide Continent‐Ocean Transitions in Rifted Margins

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract The formation of wide, magma‐starved continent–ocean transition (COT) zones remains incompletely understood. We use 2‐D thermo‐mechanical numerical experiments, coupling hydrous mantle melting with parameterized crustal accretion, to explore controls on magmatic lag: the delay between continental crustal break‐up and steady oceanic crustal ...
Yuan Wang, Zhonglan Liu
wiley   +1 more source

Magnetotelluric evidence for highly focused mantle melting along the ultraslow-spreading Gakkel Ridge, Arctic Ocean. [PDF]

Natl Sci Rev
Zhang T, Li J, Ding W, Kong F, Fang Y, Niu X, Jiang J, Yu Z, Tan P, Shen Z, Yang C, Sun Q, Lu Z, Yang B, Liu Y, Wang Y, Zhao Y.   +16 more
europepmc   +1 more source