Editing Gold (section)

=== Mantle return theories ===
Much of the rest of the gold on Earth is thought to have been incorporated into the planet since its very beginning, as [[planetesimals]] formed the [[Mantle (geology)|mantle]]. In 2017, an international group of scientists established that gold "came to the Earth's surface from the deepest regions of our planet",<ref>{{cite web |author=University of Granada |title=Scientists reveal the mystery about the origin of gold |website=ScienceDaily |date=21 November 2017 |access-date=27 March 2018 |url=https://www.sciencedaily.com/releases/2017/11/171121095128.htm}}</ref> the mantle, as evidenced by their findings at [[Deseado Massif]] in the [[Argentinian Patagonia]].<ref>{{cite journal |last1=Tassara |first1=Santiago |last2=González-Jiménez |first2=José M. |last3=Reich |first3=Martin |last4=Schilling |first4=Manuel E. |last5=Morata |first5=Diego |last6=Begg |first6=Graham |last7=Saunders |first7=Edward |last8=Griffin |first8=William L. |last9=O’Reilly |first9=Suzanne Y.|last10=Grégoire|first10=Michel |last11=Barra |first11=Fernando |last12=Corgne |first12=Alexandre |title=Plume-subduction interaction forms large auriferous provinces |journal=Nature Communications |volume=8 |issue=1 |pages=843 |year=2017 |issn=2041-1723 |doi=10.1038/s41467-017-00821-z |pmid=29018198 |pmc=5634996 |bibcode=2017NatCo...8..843T}}</ref>{{clarify|reason=this directly contradicts the first paragraph of the next section|date=April 2019}}