SimilarityRank
devonian 0.914 17422
permian 0.905 18568
palaeozoic 0.901 17635
precambrian 0.900 28924
silurian 0.900 24411
triassic 0.892 19513
pleistocene 0.883 19850
cretaceous 0.877 15845
dalradian 0.868 31062
mesozoic 0.866 21369
metamorphic 0.866 30217
eocene 0.862 39949
carboniferous 0.859 10443
proterozoic 0.855 68404
archaean 0.855 68387
chert 0.852 49404
miocene 0.852 31987
gneiss 0.849 38681
facies 0.848 23456
lewisian 0.848 43492
metasedimentary 0.845 73812
igneous 0.843 20899
breccia 0.843 37637
namurian 0.838 53188
glaciation 0.834 30769