Results 41 to 50 of about 35,973 (290)

Orthopyroxene-enrichment in the lherzolite-websterite xenolith suite from Paleogene alkali basalts of the Poiana Ruscă Mountains (Romania)

open access: yesGeologica Carpathica, 2015
In this paper we present the petrography and geochemistry of a recently collected lherzolite-websterite xenolith series and of clinopyroxene xenocrysts, hosted in Upper Cretaceous–Paleogene basanites of Poiana Ruscă (Romania), whose xenoliths show ...
Nédli Zsuzsanna   +2 more
doaj   +1 more source

Buckling of the oceanic lithosphere from geophysical data and experiments

open access: yes, 1992
Two major hypothesis have been advanced for the formation of the long wavelength (100-300) km undulations of oceanic basement and overlying sediments developed in the central Indian Ocean: whole layer folding (buckling) and local thickening (inverse ...
Bull, Jonathan M.   +2 more
core   +1 more source

Estimation of the effective elastic thickness of the lithosphere: progress and prospects

open access: yes地球与行星物理论评, 2022
The lithospheric strength is a key factor in controlling the lithosphere dynamics and deformations. The effective elastic thickness (Te) of the lithosphere can always be used to address the lithospheric strength. Hence, it is a powerful tool for studying
Wen Shi   +3 more
doaj   +1 more source

What is the lithosphere?

open access: yesEos, Transactions American Geophysical Union, 1984
What is the lithosphere? What things subduct, what things do not, and why? How is the lower continental crust formed? Where are the large‐ion lithophile elements stored? Is the style of plate tectonics episodic? These and related questions were considered during a workshop held at the University of Texas at Austin in March 1982 under the sponsorship of
openaire   +1 more source

lithosphere

open access: yes, 2014
Citation: 'lithosphere' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.L03593 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
  +4 more sources

Rejuvenation of the lithosphere by the Hawaiian plume [PDF]

open access: yesNature, 2004
The volcanism responsible for creating the chain of the Hawaiian islands and seamounts is believed to mark the passage of the oceanic lithosphere over a mantle plume. In this picture hot material rises from great depth within a fixed narrow conduit to the surface, penetrating the moving lithosphere.
Li, X.   +4 more
openaire   +7 more sources

The effective elastic thickness of the India Plate from receiver function imaging, gravity anomalies and thermomechanical modelling [PDF]

open access: yes, 2006
The range and the meaning of the effective elastic thickness (EET) in continental areas have been subject to controversy over the last two decades. Here we take advantage of the new data set from the Hi-CLIMB seismological experiment to re-estimate the ...
Cattin, R.   +3 more
core   +1 more source

Altered Mantle Fabric Beneath the Mid‐Continent Rift

open access: yesGeochemistry, Geophysics, Geosystems, 2021
We present new, densely sampled shear‐wave splitting results from southern Minnesota and adjacent areas of neighboring states, sampling the southwestern limit of the Archean Superior Province and straddling the Proterozoic Mid‐Continent Rift (MCR).
A. W. Frederiksen   +4 more
doaj   +1 more source

Rifts, orogens, cratons, and global tectonics: Introduction

open access: yesГеодинамика и тектонофизика, 2017
A key role in developing the Earth theory is played by comparative studies of orogens, rifts, and platforms in the equatorial, middle and high latitudes of Asia and the adjacent Arctic regions.
S. V. Rasskazov
doaj   +1 more source

Thermal Structure of Eastern Australia's Upper Mantle and Its Relationship to Cenozoic Volcanic Activity and Dynamic Topography

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Spatio‐temporal changes of upper mantle structure play a significant role in generating and maintaining surface topography. Although geophysical models of upper mantle structure have become increasingly refined, there is a paucity of geologic constraints
P. W. Ball   +4 more
doaj   +1 more source

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