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Biogeochemical Processes Responsible for Iron Duricrust Cementation

Gagen E, Paz A, Levett A & Southam G

Gagen E, Paz A, Levett A & Southam G (2020) Goldschmidt Abstracts, 2020 775

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11b: Room 3, View in program

Emma Gagen
Anat Paz
Alan Levett
Gordon Southam View all 5 abstracts at Goldschmidt2020

Listed below are questions that have been submitted by the community that the author will try and cover in their presentation. To submit a question, ensure you are signed in to the website. Authors or session conveners approve questions before they are displayed here.

Submitted by Jessica Hamilton on
Hi Emma, Great talk! Very cool to see the field experiments worked even better than the lab trials! How did the planted tub go? Did the plants survive, and did their root growth help or hinder aggregation? Cheers, Jess

Submitted by Emma Gagen on
Thanks Jess! We have some nice evidence of Fe-mineralisation around roots in all the containers, that I didn't show here. And field evidence also suggests that plants are important in Fe cycling that stabilises canga naturally. But in this experiment it was hard to discriminate the effect of the canga-plant-treatment compared to the unseeded treatments, because seed from the surrounding area blew in and germinated in all IBCs over the 10 months.. I think plant establishment will be critical in canga re-cementation in the real world though!

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