Results 211 to 220 of about 1,865,929 (246)

Equilibration Depth and Temperature of Neogene Alkaline Lavas in the Cordillera of Alaska and Canada as a Constraint on the Lithosphere-Asthenosphere Boundary

Canadian journal of earth sciences (Print), 2023
We have estimated the geochemical equilibration depth and temperature of the widespread Neogene alkaline basalts in the Cordillera of Alaska, NW Canada and in Mexico using geobarometry on bulk compositions that have been minimally differentiated in ...
D. Canil, R. Hyndman
semanticscholar   +1 more source

Influence of Initial Slab Dip, Plate Interface Coupling, and Nonlinear Rheology on Dynamic Weakening at the Lithosphere‐Asthenosphere Boundary

Journal of Geophysical Research: Solid Earth
The slab dip and long‐term coupling along the plate interface can vary both between and within subduction zones. However, how the initial slab dip and resistance at the plate interface affect the dynamic viscous resistance of the asthenosphere at the ...
Vivek Bhavsar, M. Jadamec, Matthew G. Knepley   +2 more
semanticscholar   +1 more source

Hygrometric Control on the Lithosphere‐Asthenosphere Boundary: A 28 Million Year Record From the Canadian Cordillera

Geophysical Research Letters, 2021
The depth to the lithosphere‐asthenopshere boundary (LAB) provides a strong control on the temperature and strength of the lithosphere and its susceptibility to tectonic deformation.
D. Canil, R. Hyndman, Dominic Fode
semanticscholar   +1 more source

The lithosphere-asthenosphere boundary and lithosphere replacement as informed by mantle xenoliths and their host lavas

Canadian journal of earth sciences (Print)
Alkaline lavas hosting mantle xenoliths occur in the hot back arc of the Cordillera of western Canada and Alaska and provide constraints on lithosphere thickness (within 5 to 10 km) and controls on the lithosphere-asthenosphere boundary (LAB).
D. Canil
semanticscholar   +1 more source

Eclogite xenoliths document water cycling at the lithosphere-asthenosphere boundary

, 2021
The amount of water stored as OH-defects in nominally anhydrous minerals in the deep mantle is poorly constrained and its direct quantification can only be accessed by the analysis of mantle xenoliths. While the vast majority of xenoliths are peridotites
J. Reynes, J. Hermann
semanticscholar   +1 more source

Predicting geochemical and isotopic compositions as well as lithosphere-asthenosphere boundary depth and diamond grade in kimberlites and lamproite using Artificial Intelligence

International Kimberlite Conference Extended Abstracts: 2024
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Luc S. Doucet, Andrea Giuliani
semanticscholar   +1 more source

Amphibole stability, water storage in the mantle, and the nature of the lithosphere-asthenosphere boundary

Earth and Planetary Science Letters, 2023
M. Putak Juriček, H. Keppler
semanticscholar   +1 more source

A plume origin for hydrous melt at the lithosphere–asthenosphere boundary

Nature, 2022
D. Blatter, S. Naif, K. Key, A. Ray
semanticscholar   +1 more source

Undulating electrical lithosphere–asthenosphere boundary beneath Northeast China; as revealed by long–period magnetotelluric data

Tectonophysics, 2023
Zikun Zhou, Deli Wang, Tianqi Wang, A. Weng, Yabin Li, Junhao Guo, Xueqiu Wang   +6 more
semanticscholar   +1 more source

Recycling process and proto-kimberlite melt metasomatism in the lithosphere-asthenosphere boundary beneath the Amazonian Craton recorded by garnet xenocrysts and mantle xenoliths from the Carolina kimberlite

Geoscience Frontiers, 2022
F. Gervasoni, Tiago Jalowitzki, Marcelo Peres Rocha, Ricardo Kalikowski Weska, Eduardo Novais-Rodrigues, Rodrigo Antonio de Freitas Rodrigues, Y. Bussweiler, Elisa Soares Rocha Barbosa, J. Berndt, Elton Luiz Dantas, Valmir da Silva Souza, S. Klemme   +11 more
semanticscholar   +1 more source