IDOR Photos

EarthScope Idaho-Oregon 2012 Seismic Refraction / Wide-Angle Reflection Survey

Contacts: John Hole or Kathy Davenport at Virginia Tech

IDOR Project site

missing figure link map of controlled-source seismic line

missing figure link Most of the 61-person IDOR Controlled-Source Seismic crew were volunteers, mostly students, from 22 different universities.

missing figure link the shot loading and stemming crew, led by Steven Harder (professor at University of Texas, El Paso), in front of the explosives pump truck

missing figure link the survey crew, led by Kathy Davenport (graduate student at Virginia Tech), surveyed the seismometer sites prior to arrival of the deployment crew

missing figure link George Slad (staff at IRIS-PASSCAL) training the crew how to deploy a seismometer (ground shaking sensor - orange) and seismomograph (recording unit - in plastic bag; this device is nicknamed a "Texan")

missing figure link Strawberry Mountain, near Prairie City, Oregon; these mountains are comprised of island-arc terranes accreted to North America

missing figure link Maureen Kahn (undergrad volunteer from Carleton College) deploying a Texan seismograph in eastern Oregon

missing figure link Snake River gorge, where the seismic line crosses the Idaho-Oregon boundary

missing figure link Messan Folivi (undergrad volunteer from Southern University) deploying a Texan seismograph in western Idaho

missing figure link one of two occasions that a vehicle had 2 flat tires simultaneously; it was a ~5-hour walk out in 95-degree sun

missing figure link sign in a ranching valley near Midvale, Idaho

missing figure link Long Valley, Idaho; the mountains in the background are the Western Idaho Shear Zone

missing figure link Ray Russo (IDOR project PI; professor at Univerity of Florida) enjoying the view from Snowbank Mountain, on the Western Idaho Shear Zone

missing figure link Rich Gaschnig (postdoc volunteer from the University of Maryland) meeting all Forest Service requirements for road work

missing figure link Basil Tikoff (IDOR project PI; professor at University of Wisconsin, Madison) and Annia Fayon (professor at University of Minnesota) teaching the crew about the Idaho Batholith and Western Idaho Shear Zone during a mid-project field trip

missing figure link another flat tire, being changed by Lindsay Sabey (Virginia Tech grad student)

missing figure link Jennifer All (undergrad volunteer from Radford University) leading a crew of seismometer deployers on a 16-km hike, crossing the Deadwood River, Idaho

missing figure link the Sawtooth Mountainns, central ID, in the Idaho Batholith

missing figure link the Halstead fire, central Idaho, as viewed from the seismic line; seismometers were not deployed as originally planned along the road in the foreground

missing figure link deploying under a menacing cloud of smoke from the Halstead fire, central Idaho

missing figure link when picking up the Texan seismographs, one was found under a piece of heavy machinery; it can be seen poking out at the end of the shovel

missing figure link the Lost River Valley and Lost River Range, eastern Idaho; this region is actively extending

missing figure link Borah Peak in the Lost River Range, eastern Idaho; the range front is the fault scarp of the 1983 magnitude 6.9 Borah Peak earthquake; this fault is actively extending

missing figure link bees on a desert flower near the Snake River canyon

missing figure link Band-pass filtered data from one shot. The image shows strong P-wave and S-wave energy that has refracted (turned) in the crust, energy that has reflected from the mid-crust and the Moho, and energy that has refracted in the uppermost mantle.