[40, 80)       1179           43           24           36
[80, 400)       344           21            4            9

=== crust: medians (positive = mass excess vs 1.5-3R), [95% cell bootstrap] ===
[20, 40)   highland     n=3094  C=-0.41[-0.44,-0.37] F=-0.18[-0.21,-0.15] W=+0.07[+0.05,+0.08] Rm=+0.16[+0.14,+0.18] CmF=-0.22[-0.23,-0.20]
[20, 40)   mare_intact  n=  28  C=-0.37[-0.67,+0.02] F=-0.08[-0.31,-0.00] W=+0.01[-0.06,+0.13] Rm=+0.14[+0.03,+0.23] CmF=-0.21[-0.39,-0.15]
[20, 40)   mare_partly  n=  58  C=-0.41[-0.75,-0.04] F=-0.21[-0.58,+0.02] W=-0.16[-0.33,+0.09] Rm=-0.03[-0.24,+0.16] CmF=-0.09[-0.11,-0.01]
[20, 40)   mare_buried  n= 107  C=+0.13[-0.02,+0.27] F=+0.08[-0.02,+0.21] W=+0.09[+0.03,+0.24] Rm=+0.10[+0.04,+0.18] CmF=-0.00[-0.03,+0.02]
[40, 80)   highland     n=1179  C=-0.23[-0.37,-0.13] F=-0.50[-0.58,-0.42] W=-0.40[-0.48,-0.29] Rm=-0.27[-0.34,-0.19] CmF=+0.25[+0.23,+0.27]
[40, 80)   mare_intact  n=  24  C=-0.02[-0.40,+0.71] F=-0.45[-0.69,-0.05] W=-0.31[-0.73,+0.17] Rm=-0.16[-0.55,+0.16] CmF=+0.50[+0.37,+0.57]
[40, 80)   mare_partly  n=  36  C=+0.15[-0.17,+0.89] F=+0.06[-0.25,+0.47] W=+0.04[-0.30,+0.48] Rm=+0.11[-0.22,+0.47] CmF=+0.19[+0.11,+0.29]
[40, 80)   mare_buried  n=  43  C=+0.14[-0.31,+0.80] F=+0.17[-0.36,+0.76] W=-0.11[-0.39,+0.69] Rm=-0.15[-0.37,+0.45] CmF=+0.08[+0.04,+0.13]
[80, 400)  highland     n= 344  C=-1.24[-1.59,-0.96] F=-1.38[-1.69,-0.97] W=-1.22[-1.49,-0.85] Rm=-0.65[-0.86,-0.45] CmF=-0.32[-0.37,-0.19]
[80, 400)  mare_intact  n=   4  C=-2.18[-2.75,+1.26] F=-2.04[-2.98,-0.22] W=-1.84[-3.05,-1.21] Rm=-1.55[-2.23,-1.32] CmF=+0.06[-0.18,+1.48]
[80, 400)  mare_partly  n=   9  C=-1.28[-3.03,+0.71] F=-0.88[-4.16,+1.23] W=-1.03[-4.67,+0.68] Rm=-0.43[-3.74,+0.48] CmF=-0.08[-0.82,+0.65]
[80, 400)  mare_buried  n=  21  C=+0.85[-1.27,+2.68] F=+0.34[-1.61,+2.12] W=+0.10[-2.09,+1.88] Rm=+0.19[-1.12,+1.04] CmF=+0.33[-0.01,+1.15]

=== does the excess follow the missing depth? (mare partly+buried) ===
[20, 40)   crust_F  n=165  vs missing depth rho=+0.20 p=0.0114   vs size rho=+0.02 p=0.757
[20, 40)   crust_C  n=146  vs missing depth rho=+0.24 p=0.00323   vs size rho=+0.04 p=0.602
[40, 80)   crust_F  n= 79  vs missing depth rho=+0.01 p=0.96   vs size rho=-0.08 p=0.475
[40, 80)   crust_C  n= 79  vs missing depth rho=-0.03 p=0.774   vs size rho=-0.05 p=0.69
[80, 400)  crust_F  n= 30  vs missing depth rho=+0.07 p=0.716   vs size rho=-0.15 p=0.431
[80, 400)  crust_C  n= 30  vs missing depth rho=+0.21 p=0.256   vs size rho=+0.04 p=0.835
all        crust_F  n=274  vs missing depth rho=+0.11 p=0.0588   vs size rho=+0.00 p=0.944
all        crust_C  n=255  vs missing depth rho=+0.16 p=0.0109   vs size rho=+0.07 p=0.271

=== mare buried vs highland, same size: floor ring F and centre-minus-floor (Mann-Whitney) ===
[20, 40)   crust_C   buried +0.13 (n=93) vs highland -0.41 (n=2636)  p=3.09e-10
[20, 40)   crust_F   buried +0.08 (n=107) vs highland -0.18 (n=3090)  p=1.41e-05
[20, 40)   crust_Rm  buried +0.10 (n=107) vs highland +0.16 (n=3091)  p=0.408
[20, 40)   crust_CmF buried -0.00 (n=93) vs highland -0.22 (n=2632)  p=5.18e-22
[40, 80)   crust_C   buried +0.14 (n=43) vs highland -0.23 (n=1179)  p=0.0361
[40, 80)   crust_F   buried +0.17 (n=43) vs highland -0.50 (n=1179)  p=0.00237
[40, 80)   crust_Rm  buried -0.15 (n=43) vs highland -0.27 (n=1179)  p=0.0546
[40, 80)   crust_CmF buried +0.08 (n=43) vs highland +0.25 (n=1179)  p=2.23e-06
[80, 400)  crust_C   buried +0.85 (n=21) vs highland -1.24 (n=344)  p=0.00295
[80, 400)  crust_F   buried +0.34 (n=21) vs highland -1.38 (n=344)  p=0.0147
[80, 400)  crust_Rm  buried +0.19 (n=21) vs highland -0.65 (n=344)  p=0.158
[80, 400)  crust_CmF buried +0.33 (n=21) vs highland -0.32 (n=344)  p=0.00092
