地球的内部结构可以分为几个主要层次:地壳、地幔和地核。 地壳(Crust) 地壳是地球最外层的固体部分,厚度大约在5到70公里之间。它由岩石和矿物组成,是我们生活的地方。地壳可以分为大陆地壳和海洋地壳,前者主要由花岗岩等轻质岩石构成,后者则主要由玄武岩等重质岩石构成。 地幔(Mantle) 地幔位于地壳之下,深度从地壳底...
Earth - Core, Crust, Mantle: Earth’s outermost, rigid, rocky layer is called the crust. It is composed of low-density, easily melted rocks; the continental crust is predominantly granitic rock (see granite), while composition of the oceanic crust corres
Earth - Core, Mantle, Crust: More than 90 percent of Earth’s mass is composed of iron, oxygen, silicon, and magnesium, elements that can form the crystalline minerals known as silicates. Nevertheless, in chemical and mineralogical composition, as in phy
Layers of the Earth | Overview, Diagram & Temperature from Chapter 4 / Lesson 10 364K Learn about the layers of the Earth and see which is the thinnest layer of Earth. Explore the Earth's crust, mantle, and the Earth's core and see their components. Related...
A division of the three main structural elements of the earth, viz., crust, mantle and core, into zones is mainly based on seismological data. Most geophysicists today strongly support the hypothesis of a crust consisting of three layers (sediment, "granite" and "basalt"). In addition, ...
What are the three layers of the Earth's mantle? The three main layers of the Earth are: crust, mantle, and core. These three layers each have multiple layers as well. Crust: the main crust and the lithosphere (bottom of crust shared with upper mantle). ...
A. It is as thin as the crust B. It is completely solid and has no movement C. It can flow slowly over a long period of time D. It has the same composition as the crust 相关知识点: 试题来源: 解析 C。解析:地幔在长时间内能够缓慢流动,这也是板块运动的动力来源之一。选项A,地幔比地壳...
What are the three layers of the Earth's mantle? The three main layers of the Earth are: crust, mantle, and core. These three layers each have multiple layers as well. Crust: the main crust and the lithosphere (bottom of crust shared with upper mantle). ...
Mantle, crust, core D. Mantle, crust, asthenosphere Correct Answer B. Crust, mantle, core Explanation Crust, mantle, core. Refer to images and first sentence of explanation. Rate this question: 1 0 5. True/False: The mantle is located approximately 200 kilometers beneath the Earth's surface...
The Earth's Crust and Mantle presents the deformations of the Earth's crust, which are attributed to mantle currents. This book explores the gravity observations, which give indications about the way in which the masses in the Earth are distributed. Comprised of five chapters, this book starts...