An improved sample preparation method for the accurate determination of manganese redox state of microparticles in deep-sea oxic sediment
Raman spectroscopy to evaluate precision of oxygen isotope ratio in calcite
Origin of helium in basement rocks and carbonate veins in Yonaguni Island
Evaluation of carbon flux through groundwater and river water at the western foothills of Mt. Chokai
Origin of spheroidal weathering within terra rossa over limestone