News & Topics

Model calculations using Pb isotopic ratios suggest that crustal components with low U/Pb ratios subducted about 2.2 and 1.8 billion years ago were incorporated into the mantle beneath the continents.

The formation pathways of macromolecular organic matter in the asteroid Ryugu samples has been revealed by a variety of microscopic analytical techniques.

The manganese oxidation reaction is not promoted by photosynthesis due to the low pH.