Results 31 to 40 of about 1,513,041 (268)

One-dimensional physical reference models for the upper mantle and transition zone: combining seismic and mineral physics constraints [PDF]

One-dimensional seismic reference models are known to be a nonunique solution to global seismic data, hampering an interpretation in terms of physical structure. Here we test the compatibility of the simplest hypothesis of a mantle convecting as a whole,
Giardini, D., Deuss, A., Cammarano, F., Goes, S.   +3 more
core   +1 more source

Depth-varying azimuthal anisotropy and mantle flow in the Patagonian slab window

Seismica
Subduction of spreading ridges forms slab windows which perturb the local structure and dynamics of the upper mantle. Slab windows may alter the pattern of mantle flow and serve as portals for the exchange of mantle material between upper mantle ...
Hannah Mark, Douglas Wiens, Walid Ben Mansour, Zhengyang Zhou   +3 more
doaj   +1 more source

The Zagros Core: Deformation of the continental lithospheric mantle [PDF]

The Zagros of Iran form one of the youngest collisional orogenic belts on Earth. At shallow depths, shortening across the Zagros is accommodated by folding in the sediments, high-angle thrust faulting in the basement and thickening of the lower crust ...
Barron, J., Debayle, E., McKenzie, D. P., Tatar, M., Priestley, K. F.   +4 more
core   +1 more source

Three-dimensional P-velocity model of the mantle and seismicity of Fennoscandia.

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2019
The paper analyzes the three-dimensional P-velocity model of the mantle of North-West Europe (Fennoscandia) in order to isolate the connection of the earth's crustal earthquakes and processes in the mantle.
Татьяна Алексеевна Цветкова, Игорь Валентинович Бугаенко, Лариса Николаевна Заец, Tatiana Tsvetkova, Igor Bugaienko, Larysa Zaiets   +5 more
doaj   +1 more source

P-velocity of the upper mantle

Геофизический журнал, 2021
The authors have constructed models featuring seismic P-wave velocity distribution in the upper mantle beneath oceanic, continental and transition regions, such as mid-ocean ridges, basins, trenches, island arcs, and back-arc troughs, Atlantic ...
V.V. Gordienko, L.Ya. Gordienko
doaj   +1 more source

The energetics of melting fertile heterogeneities within the depleted mantle [PDF]

To explore the consequences of mantle heterogeneity for primary melt production, we develop a mathematical model of energy conservation for an upwelling, melting body of recycled oceanic crust embedded in the depleted upper mantle.
Katz, R. F., Rudge, John F.
core   +1 more source

O‐GlcNAcylation Regulation of SNAP29‐Dependent Autophagy Activation Dictates Chemoresistance in Gastric Cancer

Advanced Science, EarlyView.
Model illustrating the proposed mechanism by which chemotherapy‐induced downregulation of OGT disrupts SNAP29 O‐GlcNAcylation, promoting STX17‐SNAP29‐VAMP8 SNARE complex assembly and protective autophagy, leading to chemoresistance, which in turn establishes a feedforward loop to perpetuate drug tolerance.
Liang Tang, Shaoji Zhao, Ziling Shao, Tao Luo, Baifu Peng, Yifan Liu, Jinning Ye, Jianjun Peng, Kaiyu Sun, Jianbo Xu   +9 more
wiley   +1 more source

The possible nature of the seismic activity of the depths of the Predobudruzhsky trough and the Northern Dobruja

Геофизический журнал, 2013
PeriDobruzha depression and its surrounding belong to border zone of the mantle under the EEP, distinguished by the changes of zero isoline of velocity discrepancies with the depth within the limits of the upper mantle and its transition zone according ...
V. I. Starostenko, T.K. Burakhovich, A. Kushnir, O. V. Legostaeva, T.A. Tsvetkova, E. M. Sheremet, L. A. Shumlyanskaya   +6 more
doaj   +1 more source

Microstructural evolution and seismic anisotropy of upper mantle rocks in rift zones. Geologica Ultraiectina (300) [PDF]

, 2008
This thesis investigates field-scale fragments of subcontinental upper mantle rocks from the ancient Mesozoic North Pyrenean rift and Plio-Pleistocene xenoliths from the active Baja California rift, in order to constrain the deformation history of the ...
Structural geology and EM, Palasse, L.N., Thermo-mechanical evolution of the upper mantle in ancient and modern rifts., Deformation and metamorphic processes in the Earth's upper mantle., Orogenic processes and the structural and thermal evolution of crustal and upper mantle rocks   +4 more
core   +1 more source

Temperatures in ambient mantle and plumes: Constraints from basalts, picrites, and komatiites [PDF]

, 2006
Several methods have been developed to assess the thermal state of the mantle below oceanic ridges, islands, and plateaus, on the basis of the petrology and geochemistry of erupted lavas. One leads to the conclusion that mantle potential temperature (i.e.
Lesher, C. M., P. D. Asimow (4380079), Niu, Yaoling, A. D. Saunders (7585886), Lesher, C.M., Arndt, N., Herzberg, C., C. Herzberg (10061344), Fitton, J.G., Fitton, J. G., Asimow, Paul D., Y. L. Niu (10061347), C. M. Lesher (7733825), Asimow, P.D., J. G. Fitton (7585871), Saunders, A.D., Saunders, A. D., Arndt, Nicholas, N. Arndt (8870258), Michael Cheadle (10060309), Cheadle, M. J., Cheadle, M.J., Niu, Y. L., Niu, Y., Asimow, P. D., Cheadle, Michael   +25 more
core   +1 more source