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Thus, as an event marker of 1950s water in soil and ground water, < sup > 36 </ sup > Cl is also useful for dating waters less than 50 years before the present.

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Thus, as an event marker of 1950s water in soil and ground water, < sup > 36 </ sup > Cl is also useful for dating waters less than 50 years before the present.

Edit
Promote Demote Fragment Fix

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