What is continental crust composed of? What is oceanic crust composed of? What are the layers of the Earth's crust? Which layer of the Earth contains the crust? What does the crust do for the Earth? How many elements make up the majority of Earth's continental crust?
What is oceanic crust composed of? What is primary production in oceanography? What do mantle convection currents cause? Where are the youngest seafloor rocks found? What stimulated the study of oceanography? What do tectonic plates move on?
If the speed of the current is 1.5 km/h. what is speed of the boat in still water? (A) 2.5 km/h (B) 3.5 km/h (C) 5.3 km/h (D) 4.3 km/h View Solution Knowledge Check What is the mean thickness of oceanic crust? (1) 5 km (2) 30 km (3) 10 km (4) 70 km A1....
lithospheres, with thicknesses depending upon the physical or chemical characteristics that define them: We live on a highly dynamic Earth whose stony outer portion participates in a massive convection of matter that continually builds, destroys and moves plates of continental and oceanic crust.doi...
The surface of the earth can be divided into the continental crust and the oceanic crust. The continental crust is made mostly of granite while the oceanic crust is made of basalt. The average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is ...
A. New oceanic crust is formed B. Volcanic eruptions are less likely to occur C. One tectonic plate is subducted beneath another D. There is a large amount of sediment deposition 相关知识点: 试题来源: 解析 C。解析:海沟是海洋中非常深的区域,在海沟附近通常会发生一个板块俯冲到另一个板块之下...
Sial stands for Silicate (Si) and Aluminum (Al) which are the two most abundant minerals in the Earth's continental crust. The oceanic crust is called Sima (short for silicate and magnesium). Sima is often only 5 to 10km thick while sial can be up to 70km thick. Sial is also less ...
into and through the other plate, solidifying into new crust. Magma formed from melting plates solidifies into granite, a light colored, low-density rock that makes up the continents. Thus at convergent boundaries, continental crust, made of granite, is created, and oceanic crust is destroyed....
For example, ocean pH depends to a large extent on atmospheric carbon dioxide (CO2), which, in turn, is influenced by a variety of other factors. The concentration of CO2decreases, for instance, as a result of its chemical reaction with continents, deep-sea oceanic crust — and its eventua...
OCOceanic Crust OCOperation Class OCOutput Coupler(optics, lasers) OCOcean Conservancy OCOperations Coordinator OCOffering Circular OCOracle Clinical OCOakwood College(Alabama) OCOglethorpe County(Georgia) OCOptical Colonoscopy OCOn-scene Commander