Table 6: A priori constraint cluster centers of the DSRP 2002 section of the South China Sea and cluster centers of the two algorithms.
|
|
Density (g/cm3) |
Velocity (km/s) |
Magnetization intensity (A/m) |
||||||
|
Constraint center |
FCM |
Guided FCM |
Constraint center |
FCM |
Guided FCM |
Constraint center |
FCM |
Guided FCM |
|
|
Seawater |
1.00 |
1.02 |
1.00 |
1.50 |
1.54 |
1.52 |
0.00 |
0.00 |
0.00 |
|
Sedimentary stratum |
2.40 |
2.08 |
2.30 |
3.50 |
3.49 |
3.58 |
0.01 |
0.00 |
0.00 |
|
Upper crust |
2.80 |
2.27 |
2.76 |
6.20 |
4.88 |
6.16 |
0.05 |
0.10 |
0.09 |
|
Lower crust |
2.90 |
2.74 |
2.89 |
6.50 |
6.26 |
6.51 |
1.00 |
0.20 |
0.92 |
|
Lower crust high-velocity layer |
3.20 |
3.19 |
3.19 |
7.60 |
7.48 |
7.56 |
1.00 |
1.54 |
1.01 |
|
Anomaly body |
2.85 |
2.96 |
2.86 |
6.60 |
6.77 |
6.60 |
2.10 |
0.75 |
1.75 |