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#1
10-25-2012, 11:57 PM
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Where does gold come from?
Everyone knows that gold comes from the ground, from places where we dig it up.
For some gold hunters, finding gold is easier than digging. There is some gold that is washed into streams after rainy periods, where it tends to concentrate in pockets under the water. People who know where the gold will concentrate can use gold pans, or dredges to recover the gold from streams. But this gold in the streams still came from under the ground before it washed into the streams. But how did the gold get under the ground in the first place? We believed gold got in the ground at the same time the earth was formed. Because gold is so much heavier than other rocks and metals, we would expect gold to sink to the center of the earth, along with platinum. iron, and other heavy metals. But we find gold near the surface of the earth, not at the center of the earth's core. Why? The answer we find in textbooks is because volcanoes send gold up to the surface with other materials. However, this is not the answer scientists are telling us after recent research. Scientists are telling a new story than they told in past times... They say that most of the gold which we are mining came from meteors. They say most of our gold was not formed at the time the earth was formed. They say the gold we find came later when meteors hit the earth and brought gold with them. So when you dig up a buried gold treasure, remember the gold treasure you found originally came from a meteor, not from the earth.  See these links that explain how gold came from metors: http://news.nationalgeographic.com/n...ature-science/ http://www.scientificamerican.com/po...neabl-11-09-08 http://news.discovery.com/space/eart...ls-110907.html http://www.dailymail.co.uk/sciencete...ION-years.html http://www.bbc.co.uk/news/science-environment-14827624 http://www.sciencedaily.com/releases...0907132044.htm http://www.ees.rochester.edu/ees119/reading2.pdf http://www.huffingtonpost.com/2011/0..._n_955448.html http://www.nature.com/nature/journal...9.html#/access Best wishes,  J_P 
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