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TZID:Europe/Berlin
TZUNTIL:20120325T010000Z
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DTSTART:20091025T030000
TZOFFSETFROM:+0200
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RDATE:20101031T030000
RDATE:20111030T030000
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UID:www.bayceer.uni-bayreuth.de-bayceer-t85433id
DTSTAMP:20260818T213138Z
DESCRIPTION:Iron sulfide oxidation in drained coastal lowland soils liberat
 es acidity\, Fe and SO4\, and leads to the accumulation of secondary Fe(II
 I) minerals\, such as schwertmannite and jarosite. In this seminar\, I wil
 l describe recent advances in understanding iron\, sulfur and arsenic biog
 eochemistry in acid-sulfate wetland soils. In particular\, I will discuss 
 new discoveries from the world's first landscape-scale reflooding of a tid
 al acid-sulfate wetland. In addition to field observations\, the presentat
 ion will also include a discussion of new findings from controlled laborat
 ory-based experiments examining sorption-desorption of arsenic and transfo
 rmations of iron-sulfur in model wetland systems. This will be linked to f
 ield observations on the formation and transformation of iron-sulfide mine
 rals\, including greigite and pyrite\, and the impact on in-situ arsenic b
 ehaviour. 
DTSTART;TZID=Europe/Berlin:20100629T160000
DTEND;TZID=Europe/Berlin:20100629T180000
LOCATION:S21
SUMMARY:Dr. Ed Burton\, Southern Cross University\, Australia: Iron\, sulfu
 r and arsenic biogeochemistry in an acid-sulfate wetland: new insights fro
 m a landscape-scale experiment
TRANSP:TRANSPARENT
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