Results 31 to 40 of about 35,079 (237)

Crustal Structure beneath the Precambrian Cratons of Gondwanaland and Its Evolution Using Teleseismic Receiver Function

open access: yesLithosphere, 2022
The Gondwana supercontinent was an accretion of several cratons from different landmasses, namely South America, Antarctica, Africa, Madagascar, Australia, and the Indian subcontinent.
Pousali Mukherjee   +2 more
doaj   +1 more source

Crustal Groundwater Volumes Greater Than Previously Thought

open access: yesGeophysical Research Letters, 2021
Global groundwater volumes in the upper 2 km of the Earth's continental crust—critical for water security—are well estimated. Beyond these depths, a vast body of largely saline and non‐potable groundwater exists down to at least 10 km—a volume that has ...
Grant Ferguson   +10 more
doaj   +1 more source

Criteries and prospects of diamonds of the Vitebsk granulite massif

open access: yesЖурнал Белорусского государственного университета: География, геология, 2021
The article describes the history of studying the diamond content of tectonic structures of the territory of Belarus. Based on the results of magnetometric, mineralogical, tectonic studies carried out by industrial geologists and scientists over the past
Victor S. Konishchev   +1 more
doaj   +1 more source

Mountain roots and the survival of cratons [PDF]

open access: yes, 2005
In the last few years, evidence from the apparently unconnected fields of earthquake seismology, gravity, geochemistry, rock mechanics,mineralogy and petrology has come together to provide simple insights into the fundamental geological questions: why ...
Jackson, J. A.
core   +4 more sources

Titanium and iron isotopic records of granitoid crust production in diverse Archean cratons [PDF]

open access: yes, 2023
Archean granitoid provides critical clues on how Earth's felsic crust was established and its geodynamics evolved. In this study, we present Fe-Ti isotope and trace-element data for granitoids (mostly TTGs) from the ∼3.8-3.6 Ga Itsaq Gneiss Complex and ...
Nicolas Dauphas (2515516)   +7 more
core   +3 more sources

Understanding the dynamics and evolution of cratons [PDF]

open access: yes, 2021
The earth is the only rocky planet in the solar system that exhibits plate tectonics. One of the basic tenets of plate-tectonics is that it recycles the lithosphere within a few hundred million years.
Paul, Jyotirmoy
core  

A Thermo‐Compositional Model of the African Cratonic Lithosphere

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Recently, the continually increasing availability of seismic data has allowed high‐resolution imaging of lithospheric structure beneath the African cratons.
N.‐P. Finger   +4 more
doaj   +1 more source

Dynamic Cause of Marginal Lithospheric Thinning and Implications for Craton Destruction: A Comparison of the North China, Superior and Yilgarn Cratons [PDF]

open access: yes, 2016
We present a comparative tectonic analysis of the North China craton (NCC), which has lost parts of its root, with the Yilgarn and Superior cratons, which preserve their roots.
Xu Wang   +5 more
semanticscholar   +3 more sources

Kyanite-bearing eclogite xenoliths from the Udachnaya kimberlite, Siberian craton, Russia [PDF]

open access: yesBSGF - Earth Sciences Bulletin, 2017
Xenoliths brought up by kimberlite magmas are rare samples of otherwise inaccessible lithospheric mantle. Eclogite xenoliths are found in most cratons and commonly show a range of mineral and chemical compositions that can be used to better understand ...
Radu Ioana-Bogdana   +6 more
doaj   +1 more source

The stability of cratons is controlled by lithospheric thickness, as evidenced by Rb-Sr overprint ages in granitoids [PDF]

open access: yes, 2023
International audienceThe ancient cores of modern continents, cratons, are the oldest blocks of "stable" lithosphere on Earth. Their long-term survival relies on the resistance of their underlying thick, strong, and buoyant mantle keels to subsequent ...
Millet, Marc-Alban   +11 more
core   +4 more sources

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