San Andreas Fault SAFOD Project
Autor/Urheber:
USGS
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1574 x 1637 Pixel (955779 Bytes)
Beschreibung:
Schematic representation of the SAFOD borehole and pilot hole. The background colors show the structure of the upper crust determined from surface profiling, with blue dots representing and the approximate locations of microearthquakes located by the USGS and UC Berkeley seismology laboratories. The drill site will be located sufficiently far from the San Andreas Fault (as determined by surface fault creep, imaging, and microearthquake locations) to allow for rotary drilling and coring through the entire fault zone starting at a depth of about 3 km and continuing until relatively undisturbed country rock is reached on the far side of the fault. The main SAFOD hole will be drilled at the same surface location as the pilot hole, but offset from the pilot hole by about 20 m.
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Public domain
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Relevante Artikel
San Andreas Fault Observatory at DepthDas SAFOD Tiefenobservatorium ist eine Tiefbohrung in der Nähe von Parkfield (Kalifornien), die zur dauernden Untersuchung der San-Andreas-Verwerfung dient, die die Ursache vieler Erdbeben in der Region ist. .. weiterlesen