Results 141 to 150 of about 15,041 (300)

Geochemical and geochronological constraints on the origin of the Sabzevar ophiolites (NE Iran): forced far-field subduction initiation in the upper-plate of the Neo-Tethys subduction zone

, 2023
Mohsen Nasrabady, Yuruo Shi, Michele Lustrino, Federico Rossetti   +3 more
openalex   +2 more sources

A Common Reference Material for Mass‐Dependent Sn Isotope Compositions: An Inter‐Laboratory Calibration Approach

Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 341-367, June 2026.
Key Points We recommend using the notation δ122/118SnNIST SRM 3161a for mass‐dependent Sn isotope data. We derived conversion factors relative to NIST SRM 3161a for Puri Sn CEZA (0.132 ± 0.011‰), Sn Lyon (0.229 ± 0.016‰), Sn IPGP (0.162 ± 0.018‰). Tin isotope compositions are presented for SPEX CertiPrep Sn and nine USGS reference materials.
Aurélia C.E. Meister, Manuela A. Fehr, Quentin Amet, Gerhard Brügmann, Caroline Fitoussi, Matthias Friebel, Weiqiang Li, Frederic Moynier, Jia‐Xin She, Xueying Wang, Maria Schönbächler   +10 more
wiley   +1 more source

Driving forces: Slab subduction and mantle convection [PDF]

Mantle convection is the mechanism ultimately responsible for most geological activity at Earth's surface. To zeroth order, the lithosphere is the cold outer thermal boundary layer of the convecting mantle.
Hager, Bradford H.
core   +1 more source

Remnant Paleoproterozoic Subduction or Lithospheric Drip Initiation at the Yilgarn Craton Margin: Constraints from P‐wave Tomography [PDF]

Xiaobing Xu, Kun Wang, Dinghui Yang, Liang Zhao, Huaiyu Yuan   +4 more
openalex   +1 more source

Subduction initiation at an oceanic transform fault experiencing compression: Role of the fault structure and of the brittle-ductile transition depth

, 2023
Diane Arcay, Sarah Abecassis, Serge Lallemand   +2 more
openalex   +2 more sources

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

Interseismic, Coseismic, and Early Postseismic Slip Associated With the 2025 Mw 8.8 Kamchatka Earthquake

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Unraveling the surface deformation and fault kinematics during the seismic cycle is crucial for understanding earthquake physics. Herein, we use geodetic and seismic observations to quantify the interseismic coupling, coseismic rupture, and postseismic afterslip associated with the 2025 Mw 8.8 Kamchatka earthquake.
Yang Xiao, Jingqi Wang, Yijun Zhang, Wenting Zhang, Jiangcun Zhou, Heping Sun, Yabo Zhao, Anas Osman, Rumeng Guo   +8 more
wiley   +1 more source

Geologically Current Rates of Hotspot Motion

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Hotspots, sites of mid‐plate volcanism or of excessive volcanism along a plate boundary, overlie plumes of hot rock that rise in the solid state from Earth's mantle. Previously estimated rates of lateral hotspot motion relative to a hotspot reference frame since Late Cretaceous time range from ∼3 to ∼80 mm/yr.
Kevin M. Gaastra, Richard G. Gordon, Gregory Mifflin   +2 more
wiley   +1 more source

Subduction initiation and the rise of the Shillong Plateau

, 2020
Rishav Mallick, Judith Hubbard, Eric O. Lindsey, Kyle Bradley, James D. Moore, Aktarul Ahsan, A. K. M. Khorshed Alam, Emma M. Hill   +7 more
openalex   +1 more source

Opportunities for the U.S. Geological Survey's National Seismic Hazard Model to Improve Seismic Risk Assessment of Critical Infrastructure

Earthquake Spectra, Volume 42, Issue 2, May 2026.
As fragility and risk modeling techniques and computational capabilities evolve, complemented by moving toward more routine and systematic seismic risk assessment of all buildings and critical infrastructure, the authors pose a few critical questions to investigate how the U.S. Geological Survey (USGS) National Seismic Hazard Models (NSHMs) can be used
Kishor S. Jaiswal, N. Simon Kwong
wiley   +1 more source