Physics
Scientific paper
Aug 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26.2585k&link_type=abstract
Geophysical Research Letters, Volume 26, Issue 16, p. 2585-2588
Physics
7
Geodesy And Gravity: Rotational Variations
Scientific paper
A refraction/wide-angle reflection survey in northwestern Ontario investigated the Archean Superior Province of the Canadian Shield. Images of apparent Moho topography were produced from both the PmP and SmS Moho wide angle reflections. The average Moho depth is 41 km, and average P- and S-wave velocities 6.6 and 3.8 (+/-0.05) km/s respectively. The Moho dips southward from 39.5 to 42 km depth over roughly 400 km. From ratios of S and P travel times to the Moho, profiles of Vp/Vs were constructed. The average Vp/Vs ratios are 1.74 and 1.76 for on the E-W and N-S lines (Poisson's ratio σ=0.253 and 0.262 respectively). Vp/Vs profiles show a sharp increase from west to east and a gradual increase from north to south, correlating with the distribution of more felsic continental crust and composite crust in the Western Superior.
Asudeh Isa
Farrell David
Forsyth Don
Hajnal Zoltán
Kay I.
No associations
LandOfFree
Imaging the Moho and Vp/Vsratio in the western Superior Archean Craton with wide angle reflections 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 Imaging the Moho and Vp/Vsratio in the western Superior Archean Craton with wide angle reflections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Imaging the Moho and Vp/Vsratio in the western Superior Archean Craton with wide angle reflections will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1459347