Zinc IsotopesIsotopesIsotope LabelingGeologyNitrogen IsotopesCarbon IsotopesOxygen IsotopesBiogenesisHydrothermal VentsHydrogenGeologic SedimentsEvolution, ChemicalHydrogen BondingChemoautotrophic GrowthHydrogen PeroxideUraniumDeuteriumFresh WaterHot SpringsHydrogen SulfideZinc FingersIron IsotopesMass SpectrometrySoilSulfur IsotopesBiodiversity