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Project Acronym: HOTSPOT | State: Completed | Expedition ID: 5036

ins.: 2011-06-16 02:00, 14 yrs ago
By: Scientists
Category: SnakeRiver
SnakeRiver

HOTSPOT: 2011-06-16

Partners from Boise State University and University of Alberta seismic ...
Doug and the seismic technicians in the 4 wheeler seismic special

Partners from Boise State University and University of Alberta seismic teams have begun to deploy geophones on a 2 km east-west transect of the drill site. The combined Boise-Alberta system is a 360 channel geophone array with a 6000 pound force Vibroseis source. The raw shoot gathers look great and we will begin initial processing tomorrow to see how they shape up. A 3 km north-south transect was shot this past Tuesday and Wednesday. As of Wednesday 15 June, we are at TD of ~ 2000 m. The rods are stuck on the bottom, but we will deal with that later. The borehole geophysics company Colog is here to obtain nuclear source neutron logs through the drill rods, along with a gamma log for reference. After they finish, the ICDP Operation Support Group (OSG) will take over to carry out the open hole logging. These logs are critical to establishing stratigraphy, calibrating formation boundary depths, and determining the physical properties of the country rock. Logging will continue for another 10 days.