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SUMMARY:Probing Into the Crust Through eastern Scotland: Seismological con
 straints on the Highland Boundary Fault - Amy Gilligan -- University of Ab
 erdeen
DTSTART:20230503T150000Z
DTEND:20230503T160000Z
UID:TALK200299@talks.cam.ac.uk
CONTACT:Lisanne Jagt
DESCRIPTION:The Highland Boundary Fault (HBF) delineates a fundamental div
 ision\n in the topography and surface geology in Scotland\, separating 100
 0-\n500Ma metamorphic rocks to the north from predominantly ~440-\n360Ma s
 edimentary rocks of the Midland Valley to the south. Despite \ndetailed ge
 ological mapping of the HBF and surrounding areas\, the \nrole(s) of the H
 BF in the tectonic history of Scotland is contested. \n\nTo investigate cr
 ustal structure across the HBF and any seismicity in \nthe region in sprin
 g 2022 we deployed a new network of 10 \nseismometers in north eastern Sco
 tland as part of the PICTS (Probing \nInto the Crust Through eastern Scotl
 and) project\, which\, together with\n a BGS Seismology permanent station\
 , DRUM\, form three transects \nacross the HBF. These instruments form the
  first dense seismometer \ndeployment in this region and data from them wi
 ll allow us to place \nhigh-resolution constraints on the structure of the
  crust and \nuppermost mantle across the HBF\, determine crustal thickness
  in this\n region\, and to investigate if any seismicity is occurring on t
 he eastern\n portion of the HBF. Preliminary results from crustal receiver
  functions \nindicate that the crystal structure is different to the north
  and the \nsouth of the HBF.
LOCATION:Wolfson Lecture Theatre
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