oxygen-18
Neutron-rich oxygen variant
Oxygen-18 is a stable isotope of oxygen containing eight protons and ten neutrons, giving it an atomic mass of 18.
It occurs naturally in small amounts and is used in scientific research, particularly in paleoclimatology, where the ratio of oxygen-18 to oxygen-16 in ice cores and fossils helps reconstruct past temperatures and climate conditions.
Uncharged subatomic particles
- protonsPositive nuclear particles
- nuclideAtom classified by nucleus
- nucleosynthesisAtomic core formation process
- fractionationSeparating mixture into components
Annual wood layers
- GreenlandLargest island on Earth
- AntarcticaSouthernmost continental landmass
- VostokSoviet space program
- precipitationAtmospheric water deposit
Isotopic age-determination method
- zirconZirconium silicate crystal
- carbonateAdd dissolved gas
- stratigraphyStudy of rock layers
- geochronologyStudy of geological ages
Atmospheric water deposit
- groundwaterWater in underground rock
- evaporationLiquid turning to gas
- condensationVapor turning to liquid
- aquiferGroundwater-bearing geological formation
rainfall · runoff · transpiration · watershed · recharge · humidity · vapor · streamflow
Cellular nutrient conversion
- respirationGas exchange in organisms
- photosynthesisLight-to-sugar conversion in plants
- biomarkerMeasurable biological health signal
- cellulosePlant wall polysaccharide
neutrons
Uncharged subatomic particles
- protonsPositive nuclear particles
- nuclideAtom classified by nucleus
- nucleosynthesisAtomic core formation process
tree-rings
Annual wood layers
- GreenlandLargest island on Earth
- AntarcticaSouthernmost continental landmass
- VostokSoviet space program
uranium-lead
Isotopic age-determination method
- zirconZirconium silicate crystal
- carbonateAdd dissolved gas
- stratigraphyStudy of rock layers
precipitation
Atmospheric water deposit
- groundwaterWater in underground rock
- evaporationLiquid turning to gas
- condensationVapor turning to liquid
aquifer · rainfall · runoff · transpiration · watershed · recharge · humidity · vapor · streamflow
metabolism
Cellular nutrient conversion
- respirationGas exchange in organisms
- photosynthesisLight-to-sugar conversion in plants
- biomarkerMeasurable biological health signal
- Chalcogen Isotopes
- ice coresice cores, core samples, core drilling, drilling, drilling sites
- isotope hydrologytritium, deuterium, carbon-14, radioactive tracers, radiometric dating
- isotope scienceradioisotopes, isotope geochemistry, carbon-14, carbon-13, nitrogen-15
- Isotope Tracerstracer, radioisotope, isotope, tritium, deuterium
- Isotopescarbon-12, carbon-13, carbon-14, hydrogen-1, helium-3
oxygen, oxygenate, oxygenation, oxygenated, oxygenator, deoxygenated, deoxygenation, deoxygenate