Crust and upper mantle resistivity structure in the southwestern end of the Kuril Arc as revealed by the joint analysis of conventional MT and network MT data

Details Crust and upper mantle resistivity structure in the southwestern end of the Kuril Arc as revealed by the joint analysis of conventional MT and network MT data Crust and upper mantle resistivity structure in the southwestern end of the Kuril Arc as revealed by the joint analysis of conventional MT and network MT data

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ep%26s...53..829s&link_type=abstract

Earth, Planets and Space, Volume 53, p. 829-842.

Other

2

Scientific paper

A joint analysis of data obtained by conventional magnetotellurics and network magnetotellurics (band-width, 0.003-7,680 sec) revealed detailed resistivity structure from the shallow crust to the upper mantle in the eastern part of Hokkaido, Japan, situated in the southwestern end of the Kuril Arc. The results are summarized as follows: (1) A conductive layer (a few to 10 Wm), having a basin structure, is distributed widely to a maximum depth of about 6 km in the upper crust. Considering other independent studies, such as seismic reflection, gravity and drill core analyses, the bottom of this layer coincides with the boundary between the Tertiary and the Cretaceous formations. (2) A conductive layer (10-40 Wm) situated in the lower crust extends from the volcanic front toward the backarc side, and is similar to feature with the Northeastern Japan Arc. (3) A highly resistive layer (5,000-10,000 Wm) is analyzed in the upper to middle crust of the forearc side. Since the distribution of this layer is consistent with the high positive gravity anomaly region (227 mgal in maximum), the causative material may be common. A collisional tectonic event between the Eurasia plate and the Okhotsk Paleoland in the Cretaceous period may possibly be related with the existence of the layer, although the detailed tectonic implications are left to be solved. (4) The resistivity of the upper mantle is 40-100 Wm. (5) The resistivity of the Pacific plate is estimated as 700-1,000 Wm, which is almost consistent with that of the Northeastern Japan Arc (500 Wm).

Affiliated with

Also associated with

No associations

Rating

Crust and upper mantle resistivity structure in the southwestern end of the Kuril Arc as revealed by the joint analysis of conventional MT and network MT data 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 Crust and upper mantle resistivity structure in the southwestern end of the Kuril Arc as revealed by the joint analysis of conventional MT and network MT data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crust and upper mantle resistivity structure in the southwestern end of the Kuril Arc as revealed by the joint analysis of conventional MT and network MT data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-953428