Isotopes in Water

6 important questions on Isotopes in Water

Do lighter or heavier isotopes condense/evaporate more?

Lighter isotopes evaporate easier and heavier isotopes condense easier.

How can inorganic carbon in rivers be derived?

From weathering or respiration.

Where is radiogenic 87Sr indicative for?

Bedrock age, lithology and weathering history.
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How doe you identify the age of source rock?

Neodynium and Strontium

What are stable isotopes?

Isotopes that have stable nuclei and thus do not undergo decay.

What are three examples of stable isotopes?


1. d2H or dD
2. d18O
3. d13C
(d is delta)

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