Mapping isotopes in landscapes to understand earth processes.

Isotopic signatures of hydrogen, carbon, oxygen and nitrogen vary in natural systems reflecting the dynamics of Earth System processes. These elements are found everywhere and are actively cycled within and between the atmosphere, hydrosphere, biosphere, and lithosphere.

Maps of isotope ratios in the environment (isoscapes) can be produced where the stable isotope ratios in environmental materials vary with geographic location.


New Zealand Isoscapes

GNS Science is developing the water isoscape for New Zealand using hydrogen (1H)/deuterium (2H) and oxygen (16O/18O) isotopes.

Changes through evaporation of ocean water and changing composition of precipitation from one region to another. In this way all products containing water can be matched to their region of origin.

Read more about water as a regional factor.

In New Zealand, the isotopic composition of rainwater varies with latitude.

discharging groundwater bore