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SUMMARY:Rock magnetic estimation of past precipitation from topsoil calibr
 ation - recent studies in Europe and India - Christian Zeeden\, Leibniz In
 stitute for Applied Geophysics
DTSTART:20250618T163000Z
DTEND:20250618T180000Z
UID:TALK231616@talks.cam.ac.uk
CONTACT:123217
DESCRIPTION:Several rock magnetic parameters have been demonstrated to be 
 related to climate. The concept behind magnetic enhancement is that during
  soil formation\, specific iron minerals are formed depending on soil prop
 erties\, which depend on amongst others precipitation and temperature. In 
 the mid-latitudes\, mainly magnetite and maghemite are formed\, and these 
 minerals represent a proxy for ‘soil formation intensity’ in some regi
 ons\, which is driven by i.a. precipitation. While most studies focus on E
 urasian Chernozems due to their rather simple stratigraphy and formation p
 rocesses\, other soil types such as luvisols also show elevated magnetic p
 roperties in topsoils in relation to climate.\n\nIn this presentation\, I 
 will provide a short overview of the concept of using magnetic proxies for
  (paleo)climate studies. Further\, first data from ongoing studies in Euro
 pe and India will be presented and discussed in a climate perspective. At 
 this point magnetic properties of last interglacial soils appear clearly s
 tronger than Holocene soil properties\, suggesting a wetter than recent la
 st interglacial.
LOCATION:Latimer Room\, Clare College
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