Variations during the organic abundances can be used in systems where there is ample variation during the 34S of ecosystem parts. Rocky Mountain lakes regarded as dominated by atmospheric sources of sulfate are already discovered to possess measurably distinctive 34S values than lakes thought to get dominated by watershed resources https://archermlhbv.thenerdsblog.com/41733248/sulphur-crested-cockatoo-lifespan-for-dummies