资讯

The North American continent is "dripping" rock into the lower layers of the Earth, new research says, and in the process ...
A long-lost slab of Earth’s crust may be pulling away the bottom of the oldest part of North America, scientists say ...
Even the oldest and most stable of lithospheric structures can’t withstand geologic machinations deep within the Earth.
Beneath the crust of North America, scientists have found that the deep roots of the continent are slowly dripping away in ...
Not only can wind and water erode them from above, but the deepest layers can be removed from below, as is thought to have happened to the North China Craton during the age of dinosaurs.
Restoration images of Huadanosaurus sinensis (left) and Sinosauropteryx lingyuanensis (right). Illustration: Courtesy of the ...
But sometimes cratons undergo changes that can affect their stability or that remove entire rock layers. For example, the North China Craton lost its deepest root layer millions of years ago. What ...
For example, the North China Craton lost much of its deep root during the Mesozoic era. Different theories have tried to explain such losses—ranging from convective removal, where heat causes ...