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CATEGORIES:Bullard Laboratories Wednesday Seminars
SUMMARY:Probing Into the Crust Through eastern Scotland: S
 eismological constraints on the Highland Boundary 
 Fault - Amy Gilligan -- University of Aberdeen
DTSTART;TZID=Europe/London:20230503T160000
DTEND;TZID=Europe/London:20230503T170000
UID:TALK200299AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/200299
DESCRIPTION:The Highland Boundary Fault (HBF) delineates a fun
 damental division\n in the topography and surface 
 geology in Scotland\, separating 1000-\n500Ma meta
 morphic rocks to the north from predominantly ~440
 -\n360Ma sedimentary rocks of the Midland Valley t
 o the south. Despite \ndetailed geological mapping
  of the HBF and surrounding areas\, the \nrole(s) 
 of the HBF in the tectonic history of Scotland is 
 contested. \n\nTo investigate crustal structure ac
 ross the HBF and any seismicity in \nthe region in
  spring 2022 we deployed a new network of 10 \nsei
 smometers in north eastern Scotland as part of the
  PICTS (Probing \nInto the Crust Through eastern S
 cotland) project\, which\, together with\n a BGS S
 eismology permanent station\, DRUM\, form three tr
 ansects \nacross the HBF. These instruments form t
 he first dense seismometer \ndeployment in this re
 gion and data from them will allow us to place \nh
 igh-resolution constraints on the structure of the
  crust and \nuppermost mantle across the HBF\, det
 ermine crustal thickness in this\n region\, and to
  investigate if any seismicity is occurring on the
  eastern\n portion of the HBF. Preliminary results
  from crustal receiver functions \nindicate that t
 he crystal structure is different to the north and
  the \nsouth of the HBF.
LOCATION:Wolfson Lecture Theatre
CONTACT:Lisanne Jagt
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