Multi-objective inversion of surface waves and receiver functions by competent genetic algorithm applied to the crustal structure of the Paraná Basin, SE Brazil

Details Multi-objective inversion of surface waves and receiver functions by competent genetic algorithm applied to the crustal structure of the Paraná Basin, SE Brazil Multi-objective inversion of surface waves and receiver functions by competent genetic algorithm applied to the crustal structure of the Paraná Basin, SE Brazil

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3105615a&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 5, CiteID L05615

Physics

Geophysics

6

Mathematical Geophysics: Inverse Theory, Seismology: Lithosphere And Upper Mantle, Seismology: Surface Waves And Free Oscillations

Scientific paper

Surface wave dispersion and receiver functions are sensitive to different, but dependent, seismic properties. Their joint inversion is multi-objective and can provide tight constraints on layer-interfaces and S-velocities. We used one of the competent genetic algorithms, Bayesian optimization algorithm, as the multi-objective inversion technique. Multi-objective criterion of receiver functions and surface wave dispersion can better constrain solutions than each separate objective. We applied this new method to data from three stations in the Paraná Basin, Brazil, and found S-velocity structure well-constrained down to 150 km depth. The inverted S-velocities in the lower crust are less than 3.8 km/s and are lower than in the surrounding foldbelts. Some indication of high velocities (Vs > 4 km/s) in the 5-7 km lowermost crust is given by a Moho transition zone. This may suggest that possible underplating was not widespread in the Paraná basin.

Affiliated with

Also associated with

No associations

Rating

Multi-objective inversion of surface waves and receiver functions by competent genetic algorithm applied to the crustal structure of the Paraná Basin, SE Brazil 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 Multi-objective inversion of surface waves and receiver functions by competent genetic algorithm applied to the crustal structure of the Paraná Basin, SE Brazil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-objective inversion of surface waves and receiver functions by competent genetic algorithm applied to the crustal structure of the Paraná Basin, SE Brazil will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1133840