Results 21 to 30 of about 41,648 (236)

Mid-mantle deformation inferred from seismic anisotropy [PDF]

, 2002
With time, convective processes in the Earth's mantle will tend to align crystals, grains and inclusions. This mantle fabric is detectable seismologically, as it produces an anisotropy in material properties—in particular, a directional dependence in ...
A Yeganeh-Haeri, AE Ringwood, AR Oganov, C Tong, CJ Wolfe, CP Meade, D Mainprice, DL Anderson, G Barruol, G Clitheroe, Guilhem Barruol, J-M Kendall, J-M Kendall, J-P Montagner, J-P Montagner, J.-Michael Kendall, James Wookey, JB Gaherty, JX Mitrovica, K Fischer, K Hirose, L Stixrude, LP Vinnik, LP Vinnik, MJ Fouch, MK Savage, NJ Kusznir, PG Silver, PG Silver, R Van der Hilst, S Karato, S Karato, S Widiyantoro, S Özalaybey, SH Kirby   +34 more
core   +4 more sources

The westward drift of the lithosphere. A tidal ratchet? [PDF]

, 2018
Is the westerly rotation of the lithosphere an ephemeral accidental recent phenomenon or is it a stable process of Earth’s geodynamics? The reason why the tidal drag has been questioned as the mechanism determining the lithospheric shift relative to ...
Carcaterra, A., Doglioni, C.
core   +2 more sources

Insolation driven variations of Mercury’s lithospheric strength [PDF]

, 2010
Mercury's coupled 3:2 spin-orbit resonance in conjunction with its relatively high eccentricity of ~0.2 and near-zero obliquity results in both a latitudinal and longitudinal variation in annual average solar insolation and thus equatorial hot and cold ...
Aharonson, Oded, Phillips, Roger J., Rosenburg, Margaret A., Ruiz, Javier, Williams, Jean-Pierre   +4 more
core   +5 more sources

3-D multiobservable probabilistic inversion for the compositional and thermal structure of the lithosphere and upper mantle: III. Thermochemical tomography in the Western-Central U.S. [PDF]

, 2016
Acknowledgments We are indebted to F. Darbyshire and J. von Hunen for useful comments on earlier versions of this work. This manuscript benefited from thorough and constructive reviews by W. Levandowski and an anonymous reviewer.
Aoki K., Biegler L., Coltorti M., Eggler D. H., Evans J. R., Gerya T., Kitanidis P. K., Quarteroni A., Turcotte D. L., Van Decar J. C., Winter J. D.   +10 more
core   +2 more sources

Metasomatized lithospheric mantle for Mesozoic giant gold deposits in the North China craton [PDF]

, 2020
The origin of giant lode gold deposits of Mesozoic age in the North China craton (NCC) is enigmatic because high-grade metamorphic ancient crust would be highly depleted in gold.
Becker, Harry, Cheng, Huai, Foley, Stephen, Geng, Xianlei, Liu, Yongsheng, Wang, Christina Yan, Wang, Zaicong, Wu, Fuyuan, Yang, Jinhui, Zong, Keqing   +9 more
core   +1 more source

Heavy oxygen recycled into the lithospheric mantle [PDF]

Scientific Reports, 2019
AbstractMagmas in volcanic arcs have geochemical and isotopic signatures that can be related to mantle metasomatism due to fluids and melts released by the down-going oceanic crust and overlying sediments, which modify the chemistry and mineralogy of the mantle wedge.
Dallai L.[1], Bianchini G.[2], Avanzinelli R.[3, 4], Natali C.[2, 3], Conticelli S. [3, 4, 5]   +8 more
openaire   +3 more sources

Southern Africa crustal anisotropy reveals coupled crust-mantle evolution for over 2 billion years

Nature Communications, 2019
The long-term stability of Precambrian continental lithosphere depends on the rheology of the lithospheric mantle as well as the coupling between crust and mantle lithosphere.
H. Thybo, M. Youssof, I. M. Artemieva
doaj   +1 more source

Carbonated Inheritance in the Eastern Tibetan Lithospheric Mantle: Petrological Evidences and Geodynamic Implications

Geochemistry, Geophysics, Geosystems, 2020
The timing and mechanism of formation of the Tibet Plateau remain elusive, and even the present‐day structure of the Tibetan lithosphere is hardly resolved, due to conflicting interpretations of the geophysical data.
Fanny Goussin, Nicolas Riel, Carole Cordier, Stéphane Guillot, Philippe Boulvais, Pierrick Roperch, Anne Replumaz, Karel Schulmann, Guillaume Dupont‐Nivet, Filipe Rosas, Zhaojie Guo   +10 more
doaj   +1 more source

The Relationship Between Kimberlitic Magmatism and Electrical Conductivity Anomalies in the Mantle

Geophysical Research Letters, 2022
Kimberlites are igneous rocks whose formation remains enigmatic due to their severely altered nature, highly variable compositions and rapid ascent through the lithosphere.
Sinan Özaydın, Kate Selway
doaj   +1 more source

Deep lithospheric dynamics beneath the Sierra Nevada during the Mesozoic and Cenozoic as inferred from xenolith petrology [PDF]

, 2001
Peridotite xenoliths erupted in late Miocene basalts (~8 Ma) in the central Sierra Nevada sample a lithosphere that is vertically stratified in terms of age and thermal history.
Brimhall, George H., Jr., Lee, Cin-Ty, Rudnick, Roberta L.   +2 more
core   +1 more source