Compilation of mantle transition zone (MTZ) discontinuity depths: 410 and 660 and MTZ thickness (|$\rm \Delta Z_{MTZ}$|).
| Study . | . | 410 [km] . | 660 [km] . | |$\rm \Delta Z_{MTZ}$| [km] . |
|---|---|---|---|---|
| This study | Global | 407.2 ± 7.5 | 651.5 ± 8.8 | 244.3 ± 7.7 |
| continents | 402.1 ± 6.5 | 648.1 ± 8.6 | 246.1 ± 8.6 | |
| oceans | 411.0 ± 5.8 | 654.0 ± 8.1 | 243.0 ± 6.7 | |
| Shearer (1993) | 413 | 653 | 240 | |
| Flanagan & Shearer (1998) | 418 | 660 | 242 | |
| Gu et al. (2003) | 409 | 649 | 240 | |
| Chambers et al. (2005b) | 409.2 | − | − | |
| Deuss (2007) | 410.1 | 652.6 | 242.5 | |
| Houser et al. (2008) | 420 | 660 | 240 | |
| Lawrence & Shearer (2008) | − | − | 242.3 ± 8.6 | |
| Huang et al. (2019) | 416.8 | 661.2 | 244.4 ± 8.6 | |
| Waszek et al. (2021) | PP | 414.4 ± 5.9 | − | − |
| SS | 410.0 ± 4.7 | 654.1 ± 6.3 | 244.1 ± 6.2 | |
| Study . | . | 410 [km] . | 660 [km] . | |$\rm \Delta Z_{MTZ}$| [km] . |
|---|---|---|---|---|
| This study | Global | 407.2 ± 7.5 | 651.5 ± 8.8 | 244.3 ± 7.7 |
| continents | 402.1 ± 6.5 | 648.1 ± 8.6 | 246.1 ± 8.6 | |
| oceans | 411.0 ± 5.8 | 654.0 ± 8.1 | 243.0 ± 6.7 | |
| Shearer (1993) | 413 | 653 | 240 | |
| Flanagan & Shearer (1998) | 418 | 660 | 242 | |
| Gu et al. (2003) | 409 | 649 | 240 | |
| Chambers et al. (2005b) | 409.2 | − | − | |
| Deuss (2007) | 410.1 | 652.6 | 242.5 | |
| Houser et al. (2008) | 420 | 660 | 240 | |
| Lawrence & Shearer (2008) | − | − | 242.3 ± 8.6 | |
| Huang et al. (2019) | 416.8 | 661.2 | 244.4 ± 8.6 | |
| Waszek et al. (2021) | PP | 414.4 ± 5.9 | − | − |
| SS | 410.0 ± 4.7 | 654.1 ± 6.3 | 244.1 ± 6.2 | |
Compilation of mantle transition zone (MTZ) discontinuity depths: 410 and 660 and MTZ thickness (|$\rm \Delta Z_{MTZ}$|).
| Study . | . | 410 [km] . | 660 [km] . | |$\rm \Delta Z_{MTZ}$| [km] . |
|---|---|---|---|---|
| This study | Global | 407.2 ± 7.5 | 651.5 ± 8.8 | 244.3 ± 7.7 |
| continents | 402.1 ± 6.5 | 648.1 ± 8.6 | 246.1 ± 8.6 | |
| oceans | 411.0 ± 5.8 | 654.0 ± 8.1 | 243.0 ± 6.7 | |
| Shearer (1993) | 413 | 653 | 240 | |
| Flanagan & Shearer (1998) | 418 | 660 | 242 | |
| Gu et al. (2003) | 409 | 649 | 240 | |
| Chambers et al. (2005b) | 409.2 | − | − | |
| Deuss (2007) | 410.1 | 652.6 | 242.5 | |
| Houser et al. (2008) | 420 | 660 | 240 | |
| Lawrence & Shearer (2008) | − | − | 242.3 ± 8.6 | |
| Huang et al. (2019) | 416.8 | 661.2 | 244.4 ± 8.6 | |
| Waszek et al. (2021) | PP | 414.4 ± 5.9 | − | − |
| SS | 410.0 ± 4.7 | 654.1 ± 6.3 | 244.1 ± 6.2 | |
| Study . | . | 410 [km] . | 660 [km] . | |$\rm \Delta Z_{MTZ}$| [km] . |
|---|---|---|---|---|
| This study | Global | 407.2 ± 7.5 | 651.5 ± 8.8 | 244.3 ± 7.7 |
| continents | 402.1 ± 6.5 | 648.1 ± 8.6 | 246.1 ± 8.6 | |
| oceans | 411.0 ± 5.8 | 654.0 ± 8.1 | 243.0 ± 6.7 | |
| Shearer (1993) | 413 | 653 | 240 | |
| Flanagan & Shearer (1998) | 418 | 660 | 242 | |
| Gu et al. (2003) | 409 | 649 | 240 | |
| Chambers et al. (2005b) | 409.2 | − | − | |
| Deuss (2007) | 410.1 | 652.6 | 242.5 | |
| Houser et al. (2008) | 420 | 660 | 240 | |
| Lawrence & Shearer (2008) | − | − | 242.3 ± 8.6 | |
| Huang et al. (2019) | 416.8 | 661.2 | 244.4 ± 8.6 | |
| Waszek et al. (2021) | PP | 414.4 ± 5.9 | − | − |
| SS | 410.0 ± 4.7 | 654.1 ± 6.3 | 244.1 ± 6.2 | |
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