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Tule Pond Paleoseismology
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Taking a Peel From the Wall of the Trench
Tsuyoshi Haraguchi of Fukkon Co., LTD. carefully hand pasets the epoxy on the south wall of the Tule Pond trench, Fremont, CA.... 
Taking a Peel From the Wall of the Trench
Tsuyoshi Haraguchi of Fukkon Co., LTD places a mesh backing over the drying epoxy on the south wall of the Tule Pond trench, Fremont, CA....
Taking a Peel From the Wall of the Trench
Tsuyoshi Haraguchi of Fukkon Co., LTD adds more epoxy to the mesh backing on the south wall of the Tule Pond trench, Fremont, CA....
Taking a Peel From the Wall of the Trench
Tsuyoshi Haraguchi of Fukkon Co., LTD checks the epoxy and mesh for readiness on the south wall of the Tule Pond trench, Fremont, CA....
Digging a Paleoseismic Trench
Tim Dawson, Jim Lienkamper and Tom Fumal of the USGS direct the backhoe operator on the depth in which to dig the Tule Pond trench, Fremont, CA....
Taking a Peel From the Wall of the Trench
The mesh backing and epoxy are drying, adhering to the south wall of the Tule Pond trench, Fremont, CA....
Taking a Peel From the Wall of the Trench
The mesh backing is peeled off the south wall of the Tule Pond trench in Fremont, CA, taking with it a thin string of the sediment....
Using the Geoslicer
The wedge portion of the Geoslicer hangs in the air as the crane moves it towards the Tule Pond trench in Fremont, CA....
Using the Geoslicer
Workers help place the Geoslicer wedge into the Tule Pond trench floor in Fremont, CA....
Using the Geoslicer
The wedge of the Geoslicer is placed in the Tule Pond trench bottom, Fremont, CA....
Using the Geoslicer
A Vibrohammer is used to push the wedge into the soil through the bottom of the Tule Pond trench in Fremont, CA. Tsuyoshi Haraguchi of Fukkon Co., LTD. holds the wedge steady....
Using the Geoslicer
The shutter plate is being moved out of the way so the wedge can be driven into the ground at the Tule Pond trench in Fremont, CA. ...
Using the Geoslicer
The shutter plate is driven alongside the Geoslicer wedge into the ground by the Vibrohammer at the Tule Pond trench in Fremont, CA....
Using the Geoslicer
The Geoslicer wedge is driven further into the bottom of the trench by the Vibrohammer at the Tule Pond trench in Fremont, CA....
Using the Geoslicer
The Vibrohammer drives the Geoslicer wedge into the ground beneath the trench bottom at the Tule Pond trench in Fremont, CA....
Using the Geoslicer
The Vibrohammer holds the tab of the Geoslicer wedge to manipulate its location at the Tule Pond trench in Fremont, CA....
Using the Geoslicer
The shutter plate is carefully lowered by Tsuyoshi Haraguchi of Fukkon Co., LTD. next to the Geoslicer wedge at the Tule Pond trench in Fremont, CA....
Using the Geoslicer
The shutter plate is carefully lowered by Tsuyoshi Haraguchi of Fukkon Co., LTD. next to the Geoslicer wedge at the Tule Pond trench in Fremont, CA....
Using the Geoslicer
Tsuyoshi Haraguchi of Fukkon Co., LTD. is fixing the shutter plate and wedge contact to the crane at the Tule Pond trench in Fremont, CA....
Using the Geoslicer
Tsuyoshi Haraguchi of Fukkon Co., watches as the shutter and wedge are lifted out of the ground at the Tule Pond trench in Fremont, CA....
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U.S. Geological Survey
URL: http://www.usgs.gov/sets/default.asp?set=Tule_Pond_Paleoseismologylistas=listp=kOFr3VTh20_0CurPage=1
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Page Last Modified: Wednesday, October 14, 2009
