Results 231 to 240 of about 776,982 (368)

Valence/Spin States of Iron in Peridotite Glass to Megabar Pressure Implications for Dense Iron‐Rich Silicate Melt at the Bottom of the Mantle

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract We have conducted high‐pressure electrical conductivity and Mössbauer spectroscopic measurements of peridotite glass as an analog of silicate melts. We observed the shoulder feature in the Mössbauer spectra above 60 GPa due to the emergence of the new Fe2+ component, which could be associated with the change of the iron partitioning ...
Izumi Mashino, Takashi Yoshino, Takaya Mitsui, Kosuke Fujiwara, Sayako Inoué, Takeshi Sakai   +5 more
wiley   +1 more source

Sm-Nd Isotope Data Compilation from Geoscientific Literature Using an Automated Tabular Extraction Method. [PDF]

Sci Data
Guo Z, Wang T, Wang C, Zhou J, Zheng G, Wang X, Zhou C.   +6 more
europepmc   +1 more source

Boundary Condition for the Electric Field in Earth's Core Models With Conducting Boundaries

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract The Earth's core flows are governed by magnetohydrodynamic equations, where boundary conditions determine how the electric field in the liquid core relates to that in the conducting boundaries. In the Earth's core, the no‐slip condition implies continuity of the electric field, following the continuous horizontal velocity field.
J. Rekier, S. A. Triana, B. Buffett
wiley   +1 more source

Transportation of Fluids from Ocean Through Sediments and Crust to Mantle, both Ascending and Descending, as Geologically Reasonable in the Northern Gulf of Mexico [PDF]

, 2014
Allen Lowrie, Richard Fillon
openalex   +1 more source

A Paleoarchaean impact crater in the Pilbara Craton, Western Australia. [PDF]

Nat Commun
Kirkland CL, Johnson TE, Kaempf J, Ribeiro BV, Zametzer A, Smithies RH, McDonald B.   +6 more
europepmc   +1 more source

Complex Dynamic Rupture of an Mw5.8 Intermediate‐Depth Earthquake in the Hellenic Slab

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract Earthquakes in the Hellenic slab, traced by tomography down to 1,200 km, occur at depths <200 km with enigmatic origin and dynamics. We study a 2014 Mw5.8 left‐lateral strike‐slip earthquake originating at a depth of ∼90 km under arc‐parallel compression, featuring a small implosive component of the moment tensor.
F. Gallovič, V. Plicka, Ľ. Valentová, E. Sokos, J. Zahradník   +4 more
wiley   +1 more source

The role of an oxidized lithospheric mantle in gold mobilization. [PDF]

Sci Adv
Qiu KF, Romer RL, Long ZY, Williams-Jones AE, Yu HC, Turner S, Wang QF, Li SS, Zhang JY, Duan HR, Deng J.   +10 more
europepmc   +1 more source

High‐Resolution Tracking of Baltica's Northward Drift in the Ordovician

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract We investigated the paleogeography of Baltica via a paleomagnetic study of 471‐454 Ma limestones from the Siljan (Sweden) impact structure. Stepwise thermal demagnetization isolated a well‐defined magnetization component that unblocks up to the Curie temperature of magnetite and passes fold and reversal tests, indicative of a primary ...
Nastaran Ahanin, Stuart A. Gilder
wiley   +1 more source

Geologic implication of the whole mantle P-wave tomography.

, 1994
Yoshio Fukao, S Maruyama, Masayuki Obayashi, Hiroshi Inoue   +3 more
openalex   +2 more sources

Paleomagnetic evidence for Neoarchean plate mobilism. [PDF]

Nat Commun
Ding J, Rogers C, Söderlund U, Evans DAD, Gong Z, Ernst RE, Chamberlain K, Kilian T.   +7 more
europepmc   +1 more source