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Figure F21. A. Rhizon sampling of Section 320-U1331B-1H-6, showing close-up of the interval from ~85 to 110 cm. This section had a pronounced color change at ~95 cm. B. Water yield vs. time since insertion for Rhizon sampling of Section 320-U1331B-1H-6. Solid diamonds = yield for Rhizons inserted from 10 to 90 cm, open circles = Rhizons inserted from 100 to 140 cm. 12 mL was the maximum volume of the syringe.

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