The uncertainty in the carbon budget of the Earth’s outer core does not only stem from the uncertainty in the extent of siderophile behavior of C during magma ocean processes. It is also related to the poorly constrained concentration of carbon in inner Solar System planetary bodies during ...
Earth’s core is chiefly iron (Fe) but must contain some proportion of lighter elements to have the density based on the seismological observation1,2,3. However, the identity and proportion of the light elements are largely unknown4,5,6,7. Carbon is one of the important potential light-ele...
#19. The world's oceans contain 200 million tons of gold suspended in seawater. But at a concentration measured in parts per trillion, there is no viable way to collect it. (It doesn't mean that people haven't tried.) #20. The Earth's crust contains 0.0013 parts per million of gold...