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(2020) Ca Isotope Study of Hyaloclastite Weathering in the Icelandic Highlands

Nelson C, Jacobson A & Weisenberger T

https://doi.org/10.46427/gold2020.1907

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14g: Plenary Hall, Tuesday 23rd June 07:12 - 07:15

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 Daniel Ibarra on Monday 22nd June 06:45
Have you done XRD on the altered Hyaloclastite, are the altered products mostly smectite? Or just on the suspended sediments? What are the secondary minerals you’ll measure for d44/40Ca? Any estimates on the portion of the catchments that are altered versus unaltered? Do you see anything systematic in isotope versus ratio space (i.e. higher d44/40Ca for more alteration)?


Submitted by Gerrit Müller on Tuesday 23rd June 00:20
Very interesting presentation! Do you also see the possibility of secondary Calcite being transported by rivers in particulate form? And do you plan to quantify this for your catchments in Iceland?


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