Baitoushan-Tomakomai Tephra
Baitoushan-Tomakomai Tuff Bed
Banda Basalt
Bandai 1888 debris avalanche deposit
Bandai 1888 Lahar Deposit
Bandai volcano
Banded sulphur deposit
Bandodani Formation
Bannaguro Sand Bed
Banno-sawa Pyroclastic Rock and Lava
Banshoyama Subunit
Basal Gravel
Basal Member
, Hashikadani Formation
Basal tonalite
, Hidaka Plutonic Rocks
Benten-no-hana Lavas
Beppo Formation
Besshi Eclogite unit
Besshi unit
Bihoku Group
Black sand
, Shonai sand dunes
B Member
Bodaijiyama Formation
Bodaijiyama Volcanics
Boroishi Formation
Busetsu Granite
Butaijima Basalt Member
Byobuiwa Lavas
Byobuiwa volcanic body