무릎 높이 정도.
How much gold is in the Earth's core?
Discovery's program Journey to the Center of the Earth had an interesting set of facts. According to the program the core is about 1% gold and if it was all deposited on Earth's land surface would cover it to knee depth. All the gold that's in the Earth's crust and has been mined so far came after the iron catastrophe from meteorites.
http://cosmoquest.org/forum/showthread.php?149171-How-much-gold-is-in-the-Earth-s-core
어떤 학자들의 계산으로는
지상 2m 높이로 지구 전체를 덮을 정도의 매장량이 있다고 합니다.