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Roughly put, it's the same thing that makes a density step function when you try to combine oil and water: Source The components do not mix with or dissolve into each other, so gravity makes the denser material -- water -- settle to the bottom. The density as a function of height jumps up from the oil density to the water density when you go below the ...


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This is not a four- digit number but four separare numbers called Bravais-Miller indices. Bravais-Miller indices descrive the orientation of a crystal plane relative to the symmetry axes of a crystal, as described in Wikipedia. Put very briefly, a zero index means the plane is parallel to that axis, while nonzero indices encode the relative values of the ...


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I highly recommend "The Story of Earth", by Robert M. Hazen. The title sounds like a children's book, but it's actually a very good starting place for learning about historical geology, which is essential for understanding other aspects of earth science. It's a very accessible look at how planets form, and it won't cost you nearly as much as the ...


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I think you may have more than 2 domain based on satellite image. Maybe you have three limbs of folds (green) and a fault (red). Please consider this interpretation carefully, I don't know where your study area is, what are its geologic units and structures and plutonic intrusions may deform other rocks (sedimentary, metamorphic and vulcanic), which its ...


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World is about 4.5 billion years old. At the beginning its density function is linear. Since the beginning world mass loosing its heat. The heat of the earth is high enough to cause convection currents. Convection currents works like an elevator from center to the surface. This convection currents makes the mass inside earth to move upwards, then downwards ...


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Planets in our solar system have strikingly different chemical compositions - the four rocks closest to the sun (Mercury, Venus, Earth, Mars) have most of their mass made up of rocky and metallic elements (the centre of the Earth is mainly nickel and iron), whereas the gas giants of Jupiter and Saturn are made up of much lighter and simpler elements (mainly ...


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