A. A large, movable piece of the Earth's lithosphere B. A small fragment of the Earth's crust C. A layer of water beneath the Earth's surface D. A type of rock found only in mountains 相关知识点: 试题来源: 解析 A。解析:地球板块是地球岩石圈的大型可移动部分。选项A准确地描述了板块...
Gan Shengfeiand Qian Xianglin,.A PLATE-TECTONIC MODEL FOR THE EVOLUTION OF THE DAQINGSHAN GRANULITE BELT IN INNER MONGOLIA, CHINA.[J];地质学报,1996-04Gan SF,Qian XL. A plate-tectonic model for the evolution of the Daqingshan granulite belt in Inner Mongolia,China[J].Acta Geologica Sinica...
A. Divergent boundary B. Convergent boundary C. Static boundary D. Transform boundary 相关知识点: 试题来源: 解析 C。解析:板块边界主要有离散型边界(Divergent boundary)、汇聚型边界(Convergent boundary)和转换型边界(Transform boundary),并不存在静态边界(Static boundary)这种类型。反馈 收藏 ...
A. Plate tectonics is a relatively new theory proposed in the 20th century and has no historical predecessors B. Alfred Wegener's theory of continental drift was an important precursor to plate tectonics C. Plate tectonics only focuses on the movement of oceanic plates ...
What is a tectonic plate boundary? Tectonic Plate: Tectonic plates are the different pieces of the Earth's surface. Some are associated with the large landmasses of the planet while others are beneath the ocean. These plates float on top of the melted rock found in the mantle layer of the...
A plate tectonic model is presented explaining the evolution of the Variscan belt of Europe. It regards the Iapetus Ocean and its branch, the Tornquist Sea, as the only ocean involved in the Caledonian, Variscan and Alleghenian mega-orogen. The Iapetus and its marginal basins disappeared throu...
Something strange is happening off the coast of Portugal, and scientists have now proposed a groundbreaking explanation.
Geological evolution of the Caribbean region; A plate-tectonic perspective J Pindell,S Barrett 被引量: 0发表: 1991年 Differential destruction of the North China Craton: A tectonic perspective The North China Craton (NCC) provides one of the classic examples of craton destruction, although the ...
The North China craton (NCC) was dominated by tectonic extension from late Cretaceous to Cenozoic, yet seismic studies on the relationship between crust extension and lithospheric mantle deformation are scarce. Here we present a three dimensional radially anisotropic model of NCC derived from adjoint ...
small ones as "microplates," although that term has loose definitions. The Juan de Fuca plate, for example, is very small (ranked 22nd in size) and could be considered a microplate. Its role in the discovery of seafloor spreading, however, leads to its inclusion on almost every tectonic ...