L18_Paleoclimate-Recent-Time

L18_Paleoclimate-Recent-Time

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Unformatted text preview: Now repeat the process…. Step 3: The isotopically depleted vapor is physically separated from the liquid δ18O = - 9.01 ‰ vapor Step 4: Cool the system. The air can no longer hold all the vapor, so liquid is formed: δ18O ≈ - 9.02 ‰ vapor liquid δ18O ≈ - 0.01 ‰ The isotope “frac=ona=on” is about - 9 ‰ at typical Earth surface temperatures Isotopic Dis=lla=on: A conceptual view vapor - 13‰ (~9‰ equil. + 4‰ KIE) 0‰ Isotopic Dis=lla=on: A conceptual view Vapor saturated Air mass - 13‰ - 4‰ (= - 13‰ - 9‰) (~9‰...
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This document was uploaded on 03/26/2014 for the course GEC AS.270.103 at Johns Hopkins.

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