• D'
• D1 Dyke
• D1 Terrace Deposit
• D2 Terrace Deposit
• D4 Dyke
• D4, Himenoura Group

• Da-5
• Dachikawarasawa Conglomerate, Sandstone and Mudstone Formation
• Dacite Tephra
• Daibogawa Rhyolite Tuff Member
• Daibutsu volcano
• Daibutsuyama Rhyolite
• Daifugendake Complex
• Daigamine Conglomerate
• Daigenta Granite
• Daigosawa Granite
• Dai Gravel
• Daihannyayama
• Dai-Hiyakujima Intrusive Rock
• Daihoji Tephra, Shiga pref.
• Daihoji Tuff, Aichi pref.
• Daijima Formation
• Daijima Group
• Daijoji Conglomerate
• Daikokudake Granodiorite
• Daikoku Diorite
• Daikoku Lava
• Daikokumori Agglomerate
• Daikonjima Basalt
• Daikura Granite
• Daimanjisan Basalt
• Daimanjisanminami Basalt
• Daimonsawa Formation, Tozawa Formation
• Daimyojin Debris Deposit
• Daimyojin Lava
• Dainenji Formation
• Dainenji Shell Bed
• Dainenjiyama Shell Bed
• Dainenzan and Hikoemonzawa Pumice and Pyroclastic Flow Deposit
• Dainenzan Pyroclastic Flow Deposit
• Dainiakakuzuregawa Lava
• Dainichi Sand Member
• Dainichi Sandstone
• Daioin Formation
• Dairaike Tephra
• Daira-Komagatake Volcanic Products
• Daira-Komagatake Volcano
• Dairyo Trachyte
• Daisaku Zawa Body
• Daisangoyama Andesite
• Daisanyama Volcaniclastic Deposits
• Daisengendake Complex
• Daisen-Hidani Pumice
• Daisenji Debris Avalanche Deposit
• Daisenjobu Tephra
• Daisen-Kurayoshi Pumice Bed
• Daisen-Kurayoshi Tephra
• Daisen-Matsue Pumice
• Daisen-Namatake Pumice Bed
• Daisen-Namatake Tephra
• Daisen-Sekigane Pumice Bed
• Daisen-Sekigane Tephra
• Daisen volcano
• Daisenyama Formation
• Daishaka Formation
• Daishojinokashira Basalt Formation
• Daito Formation
• Daito Granodiorite
• Daito volcanic rocks
• Daiwa? Member, upper
• Daiwa? Member, lower
• Daiyama Body
• Daiyama Quartz Diorites
• Dakedani Lava
• Dake Lava
• Dakyoji Gravel Bed
• D Alternation of Sandstone and Mudstone
• Danahigashidani Lava
• Dananotaki Lava
• Danashintani Lava
• Dan-yama lava flow
• Daruma volcano
• Dashiwaradani Lava
• Datekawarasawa Sandstone Member
• Dayoshi Formation

• Dedana Formation
• Deguchi Sandstone and Mudstone Member
• Dengaku Formation
• Denoto Formation
• Deto Formation
• Deyashikitoge Formation

• DHP

• Diatomaceous Siltstone Member
• Dike, Dozen volcano
• Diorite Porphyry 1
• Diorite Porphyry 2
• Diorite Porphyry 3

• DKP

• Dlp

• DMP

• DNP

• Do
• Doai Quartz Diorite
• Dobaru Formation
• Dobashi Quartz Diorite
• Dochi Formation
• Dodo Pyroclastic Dike
• Dogahora Mass
• Doganaro Formation
• Dogashima Formation
• Dogo-Minamidani Granite
• Doguchi Alternation of Sandstone and Mudstone Member
• Dokidani I Tephra
• Dokuzawa Formation
• Dokyo Granodiorite Porphyry
• Domeki Sandstone Member
• Domi Formation
• Donabe Lava
• Dongahata Formation
• Donishikitoge Gabbro
• Donzurubo Formation
• Doro Formation
• Dorogawa Body
• Dorokujin mass
• Doroyu Formation
• Dosaiyama Conglomerate Member
• Doshi Body
• Doshisha Tephra
• Dotaira Formation
• Dotsudake Formation
• Douden Formation
• Doyabara Formation
• Doyama Formation, Kanagawa pref.
• Doyama Formation, Toyama pref.
• Doyama Tuffaceous Member
• Dozen volcano

• DP
• DPm

• Drg

• D scoria cone
• Ds-Oh
• DSP

• Dtbt
• D Tephra

• Dy-I
• Dy-II