Results 21 to 30 of about 1,865,929 (246)

Conductive Channels in the Deep Oceanic Lithosphere Could Consist of Garnet Pyroxenites at the Fossilized Lithosphere–Asthenosphere Boundary [PDF]

open access: goldMinerals, 2020
Magnetotelluric (MT) surveys have identified anisotropic conductive anomalies in the mantle of the Cocos and Nazca oceanic plates, respectively, offshore Nicaragua and in the eastern neighborhood of the East Pacific Rise (EPR). Both the origin and nature
Thomas P. Ferrand
openalex   +2 more sources

Thermal Evolution of the Lithosphere‐Asthenosphere Boundary Beneath Arc and Its Geodynamic Implications: Depth Variation of Thermal Histories of Mantle Xenoliths From Ichinomegata, Northeast Japan [PDF]

open access: bronzeJournal of Geophysical Research: Solid Earth, 2023
Quantitative reconstruction of thermal history recorded in mantle xenoliths is imperative for understanding the temporal change of thermal state and dynamics of the lithosphere‐asthenosphere boundary (LAB).
Yuto Sato, Kazuhito Ozawa
openalex   +2 more sources

Phanerozoic Large Igneous Province, Petroleum System, and Source Rock Links

open access: yesGeophysical Monograph Series, Page 191-228., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Steven C. Bergman   +2 more
wiley  

+1 more source

Geophysical and Geochemical Constraints on Neogene‐Recent Volcanism in the North American Cordillera

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Widespread recent volcanic rocks occur across the Cordillera landward of the current/recent volcanic arc Mexico to Alaska and most other subduction backarcs.
Roy D. Hyndman, Dante Canil
doaj   +1 more source

A local lithospheric structure model for Vietnam derived from a high-resolution gravimetric geoid

open access: yesEarth, Planets and Space, 2021
High-resolution Moho and lithosphere–asthenosphere boundary depth models for Vietnam and its surrounding areas are determined based on a recently released geoid model constructed from surface and satellite gravity data (GEOID_LSC_C model) and on 3ʹʹ ...
Dinh Toan Vu   +3 more
doaj   +1 more source

Lithospheric Structure of the Circum‐Pannonian Region Imaged by S‐To‐P Receiver Functions

open access: yesGeochemistry, Geophysics, Geosystems, 2023
The lithosphere‐asthenosphere boundary and mid‐lithospheric discontinuities are primary attributes of the upper mantle. The Pannonian region is an extensional sedimentary basin enclosed by collisional orogens.
Dániel Kalmár   +5 more
doaj   +1 more source

Implications of thermal disequilibrium during channelized melt-transport for the evolution of the lithosphere-asthenosphere boundary in intraplate settings

open access: gold, 2021
This study explores how thermal disequilibrium during channelized melt-infiltration modifies the continental lithosphere from beneath. For this purpose, a 1D model of thermal disequilibrium between melt-rich channels and surrounding melt-poor material ...
Mousumi Roy, Lang Farmer
openalex   +2 more sources

Thermal nature and resolution of the lithosphere–asthenosphere boundary under the Pacific from surface waves [PDF]

open access: bronzeGeophysical Journal International, 2018
It is strongly debated whether the interface between the lithosphere and underlying as- thenosphere is a temperature-dependent rheological transition, as expected in a thermal convection system, or additionally affected by the presence of melts and/or ...
Caroline Beghein   +2 more
semanticscholar   +3 more sources

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+1 more source

Discovery of flat seismic reflections in the mantle beneath the young Juan de Fuca Plate

open access: yesNature Communications, 2020
Applying seismic imaging methods on ocean bottom hydrophone data, the authors here describe a horizontal, flat lithosphere base plus lithosphere-asthenosphere boundary beneath the young (0.51 to 2.67 Ma) Juan de Fuca plate.
Yanfang Qin   +4 more
doaj   +1 more source

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