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Abstract Details

(2020) Oxyhydroxide Hydrothermal Crusts from Saldanha Hydrothermal Field

Costa P & Dias Á


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08m: Room 3, Tuesday 23rd June 22:42 - 22:45

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 Gregory on Friday 19th June 04:29
Thank you for the presentation. You mention that there are enrichment in Cu, P, V and Ag. How enriched are they (~ppm) and in what minerals are these elements held? Do they form their own minerals or are they found as accessory elements in other minerals?

Submitted by Akira Usui on Tuesday 23rd June 12:54
Is your hydrothermal manganese (probably modern) oxide precipitate of different chemistry or mineralogy from other preported precipitates, or close to those reported elsewhere in the active areas?

Submitted by Kira Mizell on Tuesday 23rd June 21:44
What is the scale of these hydrothermal deposits? Is all of the Mn mineralization on the smaller mm-cm scale as replacement or precipitation in the other various rock types? Or are there hand-sized or larger pieces of hydrothermal Mn?

Submitted by Kira Mizell on Tuesday 23rd June 21:46
Is there any spatial relationship between the precipitation of the Mn oxide minerals and distance from the ridge?

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