The Earth's crust is getting thicker, albeit slowly. This is part of the ongoing crust/mantle differentiation, which geologists commonly refer to as plate tectonics. Basalt is constantly being poured out onto the ocean basins, and some continental areas, and ocean basins are subducted under continents, increasing the thickness of the continents. Some oceanic crust is being subducted under other oceanic crust, creating island arcs, which is a thickening of the crust.
2007-11-28 12:59:33
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answer #1
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answered by Amphibolite 7
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It moves with climate change, response to ice ages, and other factors. In general, the website below shows that space dust has contributed a 66 cm layer (so to speak) over the last 4.5 billion years. In short, the earth continues to collect items from space and increase its gravity. Does not bode well for the future olympics.
2007-11-28 07:21:04
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answer #2
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answered by zawalis 3
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I like the thin crispy crust.
2007-11-28 07:11:18
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answer #3
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answered by Lorenzo Steed 7
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I would say it is staying the same. It didn't go anywhere. It just gets recycled.
2007-11-28 07:12:38
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answer #4
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answered by cgi 5
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