b1 Member
, U-II Formation, Himenoura Group
b2 Member
, U-II Formation, Himenoura Group
b3 Member
, U-II Formation, Himenoura Group
Baba Formation
Babame Dolerite
Baba-Shirasawa Group
Baba Tuff
Baba Tuff Member
Baba Welded Tuff
Baitoushan-Tomakomai Tephra
Baitoushan-Tomakomai Tuff Bed
Ban-cho Gravels Member
Banda Basalt
Bandai AD1888 Debris Avalanche Deposit
Bandai AD1888 Lahar Deposit
Bandai-Hayama 1 Pyroclastic Flow Deposit
Bandai-Hayama 2 Pyroclastic Flow Deposit
Bandai volcano
Banded sulphur deposit
Bando2 Tephra
Bando2-O1 Tephra
Bandodani Formation
Bandokoro Conglomerate
Bandokoro Lava
Bangamoriyama Formation
Bangoya Lava
Banjin Sand
Banki Lava
Bannaguro Sand Bed
Banno-sawa Pyroclastic Rock and Lava
Banshoyama Subunit
Banzan Andesite
Basal Formation
, Mifune Group
Basal Gravel
Basal Member
, Hashikadani Formation
Basal tonalite
, Hidaka Plutonic Rocks
Basaltic Volcaniclastics Member
BB-I
BB-II
BCVA
B' craters
, Miyakejima volcano
BDH suite
Becchari Formation
Benkeinai Formation
Benkenemisaki Lava
Bentenjima Rhyolite
Bentenjima Rhyolite Member
Benten-no-hana Lavas
Bentozawa Formation
Beppo Formation
Besshi Eclogite Unit
Besshi nappe
Besshi Unit
Besshi Unit
, after Aoki, 2019
Bessho Formation
Betsuyama Tuff
Bg
Bg-1
Bg-2
Bg-3
Bibai Formation
Biei Unit
Bihoku Group
Biman Gravel Bed
Bio2
Biotite Loam
Biscuit Pumice 1 Tephra
Bisei Formation
Bisho Formation
Biwajimaoki Formation
Biwako Cauldron
Biwako Ring Complex
Black sand
, Shonai sand dunes
B Member
, Gumizaki Formation
b Member
, U-II Formation, Himenoura Group
b Member
, U-III Formation, Himenoura Group
b Member
, U-IV Formation, Himenoura Group
B Mudstone Member
Bnd2-O1
Bn-HP1
Bn-HP2
Bo
Bodaijiyama Formation
Bodaijiyama Volcanics
Bodaira Tuff
B-Og
Bokujo Formation
Bokujokita Andesite
Bomborigawa Formation
Bomborigawa Unit
Bonari Pyroclastic Flow Deposit
Bonborigawa Formation
Bonborigawa Unit
Bonju Formation
Bonoya Formation
BoP
Boroishi Formation
Bosawa Andesite
Bottom Formation
, Maizuru Group
BP
BP1
BP2
Bs
Bs-1
Bs-2
Bs-3
Bs-4
Bs-5
BSc
B scoria cone
, Miyakejima volcano
Btg 1
Btg 2
Btg 3
Btg 4
B-Tm
Budo Formation
Budozawa Formation
Budozawa Green Tuff
Bunamoribokujo Welded Tuff
Bunamori Lava
Bunatai Lava
Bunera Clay Formation
Buno Formation
Busetsu Granite
Bushi Formation
Butaijima Basalt
Butaijima Conglomerate
BW
By2
Byk-E
Byobudake Pyroclastic Rocks
Byobugaura Formation
Byobuiwa Formation
Byobuiwa Lavas
Byobuiwa Sandstone Member
Byobuiwa Tuff Member
Byobuiwa volcanic body
Byobunoatama Granophyre
BZ