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Researchers ID unique geological 'sombrero' uplift in South America

Academics / General Science : ScienceDaily: Science Society

Scientists have identified a geological oddity in the central Andes region, home to the largest active magma body in Earth's continental crust. They found that magma is forming a big blob in the middle of the crust, pushing up Earth...

Scientists uncover insights into the formation of Earth's oldest continental crust

Issues & Causes / Environmentalism : Physorg: Earth

Addressing fundamental unknowns about the earliest history of Earth's crust, scientists have precisely dated the world's oldest rock unit at 4.02 billion years old. Driven by the University of Alberta, the findings suggest that earl...

The origin of Earths first continents and the onset of plate tectonics

Academics / Geology : GeoScienceWorld

The growth and recycling of continental crust has resulted in the chemical and thermal modification of Earth’s mantle, hydrosphere, atmosphere, and biosphere for ~4.0 b.y. However, knowledge of the protolith that gave rise to the fi...

Case of Earth's missing continental crust solved—it sank

Issues & Causes / Environmentalism : Physorg: Earth

How do you make half the mass of two continents disappear? To answer that question, you first need to discover that it's missing.

Case of the missing continental crust solved: It sank

Issues & Causes / Climate Change : EurekAlert: Earth

(University of Chicago) University of Chicago scientists and a colleague at Miami University of Ohio have concluded that half the original mass of Eurasia and India disappeared into the Earth's interior before the two continents beg...


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