Results 271 to 280 of about 776,982 (368)

High Silica Leucogranites Result From Sedimentary Rock Melting—Evidence From Trace Elements and Nd‐Hf‐B Isotopes

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.
Abstract High silica granites may host major rare metal deposits. The petrogenesis of these granites, some of which have very low Zr/Hf, Nb/Ta, and Eu/Eu* ratios, has been highly debated. The existing views mainly favor either extreme magmatic fractionation or fluid‐magma interaction.
Hui Huang, Yaoling Niu, Rolf L. Romer, Yuhuang Zhang, Maoyong He, Wei Li   +5 more
wiley   +1 more source

Efficient hybrid numerical modeling of the seismic wavefield in the presence of solid-fluid boundaries. [PDF]

Nat Commun
Lyu C, Romanowicz B, Zhao L, Masson Y.
europepmc   +1 more source

Investigating the Lid Effect on the Generation of Ocean Island Basalts: 2. Geodynamical Simulations

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.
Abstract The concept that oceanic lithosphere mechanically limits upwelling and decompression melting of mantle plumes is known as the lid effect and is backed up by observations of ocean island basalt (OIB) geochemistry. Nevertheless, in a recent companion study on OIB geochemistry, several additional factors were identified that further influence OIB
Shihao Jiang, Thomas Duvernay, Mark J. Hoggard, Rhys Hawkins, Ian H. Campbell, D. Rhodri Davies   +5 more
wiley   +1 more source

The crustal juvenile and reworking in eastern Tibet due to tectonism and magmatism. [PDF]

Sci Rep
Zheng T, He Y.
europepmc   +1 more source

The Role of Microcontinent Strength and Basal Detachment in Accretionary Orogenesis: Insights From Numerical Models

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract During closure of an ocean through subduction and continental collision, bathymetric highs such as microcontinents can accrete, collide, or partially or completely subduct. Such interaction of future allochthonous terranes (FATs) with the overriding continent will modify the dynamics of the subduction zone, affecting its length and frictional ...
Zoltan Erdős, Susanne J. H. Buiter, Joya Tetreault   +2 more
wiley   +1 more source

Perspectives on Mars Sample Return: A critical resource for planetary science and exploration. [PDF]

Proc Natl Acad Sci U S A
McSween HY, Hamilton VE, Farley KA.
europepmc   +1 more source

Topographic Drag at the Core‐Mantle Interface

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract The length of day variations with periods from five to one hundred years are mainly due to core‐mantle interactions. Assuming a differential velocity between the core and the mantle, we investigate the pressure coupling on a core‐mantle boundary (CMB) interface with topography. Including rotation, buoyancy, and magnetic effects in local models
R. Monville, D. Cébron, D. Jault
wiley   +1 more source

Highly oxidized intraplate basalts and deep carbon storage. [PDF]

Sci Adv
Dong XH, Wang SJ, Wang W, Huang S, Li QL, Liu C, Gao T, Li S, Wu S.   +8 more
europepmc   +1 more source

Multi‐Scale Geophysical Imaging of a Hydrothermal System in Yellowstone National Park, USA

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract Little is known about the local plumbing systems that fuel Yellowstone's famous hot springs, geysers and mud pots. A multi‐method, multi‐scale geophysical investigation was carried out in the Obsidian Pool Thermal Area (OPTA) to: (a) delineate the lateral extent of the hydrothermal area and associated surface features; (b) estimate the ...
Sylvain Pasquet, W. Steven Holbrook, Bradley J. Carr, Neil Terry, Martin A. Briggs, Carol A. Finn, Paul A. Bedrosian, Esben Auken, Jesper Pedersen, Pradip Maurya, Kenneth W. W. Sims   +10 more
wiley   +1 more source

Control of slab tears and slab flat wedging on volcanism in the Alaska subduction zone. [PDF]

Sci Rep
Hu Y, Liu C, Wang Z, Zhao F.
europepmc   +1 more source