Physics – Geophysics
Scientific paper
Feb 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004eostr..85...70v&link_type=abstract
EOS Transactions, AGU, Volume 85, Issue 7, p. 70-70
Physics
Geophysics
Meetings, Marine Geology And Geophysics: Marine Seismics, Seismology: Earthquake Dynamics And Mechanics
Scientific paper
Great earthquakes in subduction zones occur after stable slip in the proto-seismogenic zone transitions to the unstable slip that characterizes seismogenic zones. Subducted material input to seismogenic zones affects this transition. Material structure, lithology, and physical properties change progressively during subduction, and according to current hypotheses, specific material transformations trigger the stable to unstable slip transition. Where accretion dominates a convergent margin, material input is trench sediment that is easily drill-sampled. However, where erosion dominates a margin, material input is unknown because it originates along the base of the upper plate and alters differently. The depth at which material is eroded lies beyond the sampling capabilities of past scientific ocean drilling, so the proto-seismogenic zone transformed material has never been drill-sampled nor does geophysics resolve its structure, lithology, and physical properties. The Japanese riser drill ship Chikyu in the Integrated Ocean Drilling Program (IODP) overcomes this difficulty. Preparing a site for deep drilling is a much greater task than preparing the shallower sites of past programs, so this is accomplished during workshops.
Ranero César R.
Saito Saneatsu
Vannucchi Paola
von Huene Roland
No associations
LandOfFree
Focusing on Proto-Seismic Zone of Erosional Convergent Margin does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Focusing on Proto-Seismic Zone of Erosional Convergent Margin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focusing on Proto-Seismic Zone of Erosional Convergent Margin will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1018420