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UID:4459
LOCATION:Virtual
DTSTAMP:20170315T140000
DTSTART:20170315T140000
DTEND:20170315T150000
SUMMARY:Webinar - Results from the Salton Seismic Imaging Project (S
 SIP)
DESCRIPTION:Please register for Results from the Salton Seismic Imaging 
 Project (SSIP) on March 15\, 2017 2:00 PM EDT at: \n\nhttps:/
 /attendee.gotowebinar.com/register/7166409363286169347\n\nSpea
 ker: Dr. Liang Han\, UTIG\, Austin\, TX \n\nAbstract: The Salton
  Seismic Imaging Project (SSIP) acquired controlled-source s
 eismic refraction and wide-angle reflection data in the Sal
 ton Trough\, Southern California and northern Mexico\, in 2011
 \, which provide constraints on the crustal and upper mantle
  structure. Almost 2800 land seismometers and 50 OBS’s we
 re deployed at almost 4300 sites\, in spacing as dense as 100
  m\, which received seismic signals from 126 explosive shots
  up to 1400 kg and over 2300 airgun shots. The actively exte
 nding crust in the central Salton Trough is only 17-18 km t
 hick\, with a strongly layered but relatively one-dimensional
  structure for ~100 km in the direction of plate motion. Th
 is thin transitional crust is mostly new\, created by metamo
 rphism of young sediment from the Colorado River and underpl
 ating magmatism from hot upper mantle. Both seismicity dist
 ribution and thermal modeling suggest narrow brittle deforma
 tion in the upper crust and distributed ductile deformation
  in the lower crust. The creation of new crust keeps the cr
 ust thick and predominantly ductile\, which delays the contin
 ental breakup and the initiation of seafloor spreading. If 
 the Salton rift succeeds\, this new transitional crust will b
 ecome part of the continental margin.\n\nAfter registering\, y
 ou will receive a confirmation email containing information 
 about joining the webinar.  NOTE: Registration does not con
 firm or guarantee you will have a spot during the webinar\, a
 s we are limited to 100 participants. Webinars are archived 
 for later viewing at https://www.youtube.com/playlist?lis
 t=PLD4D607C2FA317E6D
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