The composition of Earth's mantle, continental crust, and oceanic crust continuously evolve in response to the dynamic forces of plate tectonics and mantle convection. The classical view of ...

In this image, you can see plagioclase feldspar ... These are common elements on Earth, but they are rare in continental crust. This composition of rock is most common in the oceanic crust and the ...

Our results show that decarbonation reactions form an impenetrable barrier to subduction of carbonate in oceanic crust to depths in the mantle greater than similar to 1500 km. We also identify ...

Abstract: This work addresses image reconstruction from divergent-beam projections in 2D and 3D SPECT. Assuming that the attenuation map is constant in a convex region Omega that includes all activity ...

in hyperspectral image (HSI) classification. Nevertheless, CNN based approaches may lead to over-smoothing effect due to the spatial information loss during the convolution and pooling operations. To ...

The solution, it seems, lay in plain sight: the crust is actually not oceanic, but a piece of continental crust that didn’t quite manage to separate completely when Greenland and North America ...

The property presents the complete portrayal of the geological events that took place when the ancient continental margin of North America was modified by plate movement by emplacement of a large, ...

The Deputy Vice-Chancellor (Administration) of the University of Ibadan, Professor Peter Olapegba, has called for the removal of boundaries among African nations to enable the continent achieve ...

Earthquakes, volcanic eruptions, shifting tectonic plates—these are all signs that our planet is alive. But what is revealed deep inside Earth surprises laymen and scientists alike: Almost 3000 ...

©Magma intrusions during the Cretaceous Ring of Fire concentrated dissolved metals into valuable ore deposits deep within the Earth's crust. Image by National Park Service Digital Image Archives ...