Sobolev, Alexander V Deep hydrous mantle reservoir provides evidence for crustal recycling before 3.3 billion years ago. [electronic resource] - Nature 07 2019 - 555-559 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1476-4687 Standard No.: 10.1038/s41586-019-1399-5 doi