The structure of water consists of concentric layers, namely the crust, mantle and inner and outer core of the Earth. Based on research results, the earth has a radius of 6,371 kilometers.
The structure of the layers of concentric circles, namely the crust (crust), mantle (mantle) and the core of the earth (inner and outer core). Based on research results, the earth has a radius of 6,371 kilometers.
Look at the records B M K G Crust
The earth's crust is the topmost and outermost layer of the earth's structure. The earth's crust is analogous to the shell of a boiled egg because it is very thin, brittle, and breaks easily compared to the structure beneath it.
The Earth's crust is composed of relatively light elements such as silica, aluminum, and oxygen. The thickness of the layers of the earth's crust varies due to the uneven surface of the earth.
The thickness of the earth's crust on land is between 25-40 km. In the mountains it can be up to 70 km thick, while in the oceans and the Hawaiian Islands it is the thinnest crust, only 5 km.
The type of the earth's crust, namely; 1. Continental crust is mostly composed of granite rocks, 2. Oceanic crust is composed of basalt rocks.
The upper mantle, the Earth's crust, is split into large plates like puzzle pieces. This is what is called plate tectonics.
These plates can move at very slow speeds. The movement of these tectonic plates is only 0 to 14 centimeters per year. The trigger for the movement of tectonic plates is not yet known.
Struktur air terdiri dari lapisan-lapisan konsentris, yaitu kerak, mantel, dan inti dalam dan luar Bumi. Berdasarkan hasil penelitian, bumi memiliki radius 6.371 kilometer.
Struktur lapisan lingkaran konsentris, yaitu kerak bumi (crust), mantel (mantle) dan inti bumi (inner and outer core). Berdasarkan hasil penelitian, bumi memiliki radius 6.371 kilometer.
Lihatlah catatan B M K G Kerak
Kerak bumi adalah lapisan paling atas dan terluar dari struktur bumi. Kerak bumi diibaratkan seperti cangkang telur rebus karena sangat tipis, rapuh, dan mudah pecah dibandingkan dengan struktur di bawahnya.
Kerak bumi terdiri dari unsur-unsur yang relatif ringan seperti silika, aluminium, dan oksigen. Ketebalan lapisan kerak bumi bervariasi karena permukaan bumi yang tidak rata.
Ketebalan kerak bumi di darat antara 25-40 km. Di pegunungan tebalnya bisa mencapai 70 km, sedangkan di lautan dan Kepulauan Hawaii merupakan kerak tertipis, hanya 5 km.
Jenis kerak bumi yaitu; 1. Kerak benua sebagian besar terdiri dari batuan granit, 2. Kerak samudera terdiri dari batuan basalt.
Mantel atas, kerak bumi, terbelah menjadi lempengan-lempengan besar seperti potongan puzzle. Inilah yang disebut lempeng tektonik.
Pelat-pelat ini dapat bergerak dengan kecepatan yang sangat lambat. Pergerakan lempeng tektonik ini hanya 0 hingga 14 sentimeter per tahun. Pemicu pergerakan lempeng tektonik belum diketahui.
BamZkey Natadikusuma 