资讯

A study reveals that the oldest continental crust on Earth is slowly being broken up by shifting tectonic forces.
Continental crust rises on average 125 meters above sea level, and some 15 percent of the continental area extends over two kilometers in elevation.
The continental crust is central to the biological and geological history of Earth. However, crustal heterogeneity has prevented a thorough geochemical comparison of its primary igneous building ...
Deep within the Earth’s mantle, rhythmic pulses of hot lava are emerging on the surface, offering a rare glimpse into the ...
"The rocks of the original continental crust could only form under relatively narrowly defined temperature and pressure conditions. In both extremes, these conditions do not exist," explains Rozel.
The Earth’s crust is disappearing right beneath our feet – and most people don’t even realise it.Now, if you’re a geologist, or got a keen interest in how the Earth is put together, then this probably ...
The continental crust is the layer of granitic, sedimentary and metamorphic rocks which form the continents and the areas of shallow seabed close to their shores, known as continental shelves. It ...
Earth’s continental crust may have begun forming hundreds of millions of years earlier than previously thought, Yale scientists say — and the reason will be obvious to anyone who has ever baked a cake ...
The scientists computed with unprecedented precision the amount of landmass, or “continental crust,” before and after the collision. “What we found is that half of the mass that was there 60 million ...
Continental crust — which is made of less dense rock than oceanic crust and therefore rises to higher elevations — came perhaps hundreds of millions of years later.