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TZUNTIL:20161030T010000Z
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DTSTART:20131027T030000
TZOFFSETFROM:+0200
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RDATE:20141026T030000
RDATE:20151025T030000
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UID:www.bayceer.uni-bayreuth.de-bayceer-t125212id
DTSTAMP:20260911T125559Z
DESCRIPTION:Trace elements in black shales encode information about profoun
 d events in earth history\, including mass extinction events.   Reading th
 e code requires understanding the chemical processes that trigger transfer
  of trace elements from seawater to sediments in response to changing envi
 ronmental conditions.   Trace elements that form stable oxyanions in seawa
 ter are of particular interest because they have long mean residence times
  which favor their global homogenization and enrichment in seawater.\nConv
 entionally\, transfer of these elements to sediments has been attributed s
 imply to reduction.  Through study of chemical mechanisms\, a more detaile
 d characterization of ancient environments should become possible.  Curren
 t research on this problem will be reviewed\, focusing particularly on mol
 ybdenum (Mo) and rhenium (Re).\n \n***\nInvited by the Environmental Geoch
 emistry Group (Prof. Dr. Britta  Planer-Friedrich)- anyone who would like 
 to join is cordially invited!
DTSTART;TZID=Europe/Berlin:20141016T081500
DTEND;TZID=Europe/Berlin:20141016T094500
LOCATION:S 135 (NW III)
SUMMARY:Prof. Dr. George Helz\, University of Maryland (Homepage): What reg
 ulates trace element paleoredox proxies in black shales?
TRANSP:TRANSPARENT
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