Results 71 to 80 of about 12,547 (243)

Carbonatites from the Southern Brazilian platform: I

Open Geosciences, 2020
We present a comprehensive overview of the geochemical characteristics and evolution of the carbonatites from the southern Brazilian Platform (Paraná Basin).
Speziale Sergio, Castorina Francesca, Censi Paolo, Gomes Celso de Barros, Marques Leila Soares, Comin-Chiaramonti Piero   +5 more
doaj   +1 more source

A numerical model for the gravimetric recovery of sub-lithospheric mantle structures

Geodesy and Geodynamics, 2020
It is a well-known fact that the long-wavelength terrestrial geoid undulations are mainly attributed to deep mantle density heterogeneities, while more detailed features in the geoid geometry are associated with the topography and the lithospheric ...
Robert Tenzer
doaj   +1 more source

Modification of Crust and Mantle Lithosphere Beneath the Southern Part of the Eastern North American Passive Margin

Geophysical Research Letters, 2021
The eastern North American passive margin was modified by Mesozoic rifting. Seismic data from recent deployment of onshore and offshore stations offer a unique opportunity for studying the signature of syn‐rifting and postrifting in lithospheric ...
Cong Li, Haiying Gao
doaj   +1 more source

Western US intraplate deformation controlled by the complex lithospheric structure

Nature Communications
The western United States is one of Earth’s most tectonically active regions, characterized by extensive crustal deformation through intraplate earthquakes and geodetic motion.
Zebin Cao, Lijun Liu
doaj   +1 more source

The Deep Lithospheric Structure of the South Australian Craton Revealed by Teleseismic Rayleigh Wave Tomography

Seismica
We used teleseismic Rayleigh waves recorded by three recent broadband seismic arrays in southern Australia to develop a shear wave velocity model of the South Australian Craton from the lower crust to 250 km depth and compare this with isotope data ...
John Paul O'Donnell, Kate Selway, Claire Wade, Stephan Thiel, Caroline Eakin, Robert Pickle, Shubham Agrawal, Bruce Goleby, Alexei Gorbatov   +8 more
doaj   +1 more source

Experimental constraints on the strength of the lithospheric mantle [PDF]

Journal of Geophysical Research: Solid Earth, 2010
To provide a better understanding of rheological properties of mantle rocks under lithospheric conditions, we carried out a series of experiments on the creep behavior of polycrystalline olivine at high pressures (∼4–9 GPa), relatively low temperatures (673 ≤ T ≤ 1273 K), and anhydrous conditions, using a deformation‐DIA. Differential stress and sample
S. Mei, A. M. Suzuki, D. L. Kohlstedt, N. A. Dixon, W. B. Durham   +4 more
openaire   +1 more source

Magmatism of the Kenya Rift Valley : a review. [PDF]

, 2003
Tertiary–Recent magmatism in the Kenya Rift Valley was initiated c. 35 Ma, in the northern part of Kenya. Initiation of magmatism then migrated southwards, reaching northern Tanzania by 5–8 Ma.
MacDonald, Raymond
core  

Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]

, 2010
The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Downes, H., Szacáks, A., Maţenco, L., Szakács, A., Mason, P.R.D., Seghedi, I., Matenco, L.C., Downes, Hilary, Pécskay, Z.   +8 more
core   +1 more source

Petrological features of Subei Basin (Eastern China) lithospheric mantle and their relationships with H2O contents in NAMs

, 2010
The Subei basin is located east of the Tanlu fault, a major discontinuity which separates the Archean North China Craton from the Proterozoic Yangtze Craton.
Hao, Yantao
core  

Empirical evidence for the fractionation of carbon isotopes between diamond and iron carbide from the Earth’s mantle

, 2014
S.M. would like to thank the Engineering and Physical Sciences Research Council, the Diamond Trading Company, and the Department of Physical Sciences, The Open University (UK) for financial support during his time as a PhD student at University College ...
Krispin, Catherine, Crispin, K., Jones, A.P., Verchovsky, Alexander, Guillermier, C., Beard, Andrew, Milledge, H.J., Beard, Andy, Verchovsky, A.B., Jones, Adrian, Franchi, I.A., Milledge, H Judith, Mikhail, Sami, Guillermier, Christalle, Mikhail, S., Beard, Andrew D., Franchi, Ian   +16 more
core   +1 more source