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Table 1 Location and average electrical conductivity (EC) of main conductors detected in electromagnetic studies of subduction zones

From: Geophysical assessment of migration and storage conditions of fluids in subduction zones

Subduction zone Backarc conductor Forearc or trench-close conductor References
  Depth (km) EC (S/m) Distance from trench (km) Depth (km) EC (S/m) Distance from trench (km)  
1. Chile-Bolivia (19.5°S-21°S) 20 0.04.-0.10 220   n.c.   Brasse et al. (2002)
2. Chile-Bolivia (17°S-19°S) 100 0.10-1 300   n.c.   Brasse and Eydam (2008)
3. Costa Rica 30 0.03-0.13 150 10 0.10-0.20 65 Worzewski et al. (2011)
4. Mexico 40 0.03-0.20 330 20 0.10-0.20 40 Joedicke et al. (2006)
5. Philippine Sea 85 0.50 320 40 0.50 140 Shimakawa and Honkura (1991)
6. South Chile 25 0.10-0.30 140 15 0.03-1 45 Brasse et al.(2009)
7. Central Argentina 200 0.03-1 800 30 0.02 300 or less Booker et al. (2004)
8. Cascadia, British Columbia 50 0.02-0.05 120 25 0.02 50 Soyer and Unsworth (2006)
9. Cascadia, Oregon 80 0.03-1 120 25 0.03-1 80 Evans et al. (2013)
10. Greece 40 0.002-0.006 170 - - - Galanopoulos et al. (2005)
11. Mariana 40 0.01 300 <30? 0.006? 50-150? Matsuno et al. (2012)
12. Taiwan 35 0.0590.10 100 10 0.05-0.12 30 Bertrand et al. (2012)
13. Kyushu, Japan 50 1 300   n.c.   Ichiki et al. (2000)
14. Hokkaido, Japan 40 0.01-0.10 400 40 0.01-0.10 100 Ichiki et al. (2009)
15. North Honshu, Japan 170 0.15-0.30 260 15 0.10 210 Toh et al. (2006)
16. Central New Zealand 35 0.01-0.04 200 20 0.10 150 Wannamaker et al. (2009)
  1. n.c, zone close to trench not covered by the electromagnetic survey.