Worldwide Strontium/Oxygen Isotope Chart
Select a city
Global Isotope Ranges
δ¹⁸O (‰ VSMOW)
-4.0
-5.0
-6.0
-7.0
-8.0
-9.0
⁸⁷Sr/⁸⁶Sr
0.70
0.72
0.74
0.76
0.78