- Fukadani Debris Flow Deposit
- Fukae Granite
- Fukami Serpentinite Unit
- Fukami Tectonic Line
- Fukasawa Formation
- Fukashiro Unit
- Fukatani Formation
- Fukatani Member
- Fukaura Formation
- Fukawa Formation
- Fukazawa Formation, Yamagata pref.
- Fukazawa Formation, Fukushima pref., Pleistocene
- Fukazawa Formation, Fukushima pref., Miocene
- Fukazawa Formation, Tokyo
- Fukazawa Formation, Kanagawa pref.
- Fukazawa Pyroclastic Flow Deposit
- Fukazawa Unit
- Fukenoyu Lava
- Fukinotaira Volcanic Rocks
- Fukizawa Formation
- Fukkiura Shale and Sandstone Member
- Fukkoshi Formation
- Fukuda Formation
- Fukuda Tephra
- Fukue Formation
- Fukuhara Formation
- Fukuhara Terrace Deposits
- Fukuhira Formation
- Fukuhira Pyroclastic Rock Member
- Fukuji Formation
- Fukuji Group
- Fukuji Tuff Breccia
- Fukumoto Group
- Fukuoka-cho Muds Member
- Fukuoka Formation (a part)
- Fukuoka Formation (a part)
- Fukuoka Granite
- Fukuoka Pumice (a part)
- Fukuoka Pumice (a part)
- Fukura Lava
- Fukura Sands
- Fukuregi Formation
- Fukushima Formation, Aomori pref.
- Fukushima Formation, Niigata pref.
- Fukushima Formation, Tokyo
- Fukushima Lava
- Fukushi Member
- Fukuyama Andesite