Geology Type Difference in means Lower confidence interval Upper confidence interval Adjusted p-value
Grey-bedded Ash - Black Lava 1.043 0.276 1.809 0.001*
Grey Lava - Black Lava 0.059 -0.074 0.193 0.802
Recent (Post 1980) - Black Lava -0.024 0.698 0.641 0.999
Scoria - Black Lava 0.101 -0.146 0.348 0.853
Wind-blown Ash - Black Lava 0.035 -0.561 0.631 0.999
Grey Lava - Grey-bedded Ash -0.984 -1.753 -0.214 0.004*
Recent (Post-1980) - Grey-bedded Ash -1.067 -2.075 -0.058 0.031*
Scoria - Grey-bedded Ash -0.942 -1.740 -0.145 0.010*
Wind-blown Ash – Grey-bedded Ash -1.008 -1.972 -0.044 0.035*
Recent (Post-1980) - Grey Lava -0.083 -0.752 0.586 0.999
Scoria - Grey Lava 0.041 -0.215 0.298 0.997
Wind-blown Ash - Grey Lava -0.024 -0.624 0.576 0.999
Scoria - Recent (Post-1980) 0.124 -0.576 0.824 0.996
Wind-blown Ash - Recent (Post 1980) 0.059 -0.827 0.944 0.999
Wind-blown Ash - Scoria -0.066 -0.701 0.569 0.999