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Fujii Sandstone and Mudstone Member (Kosaka and Yamagishi, 1988) Yamada et al., 2004
Invalid synonym: Fujii Sandstone and Mudstone Facies
- Type locality: Asama hotspring, Matsumoto city, Nagano prefecture
- Coherent formation
- middle Miocene
- Contemporaneous heterotopic facies: Mozawa Tuffaceous Sandstone Member
- Intruded by: Diorite porphyry
- Sedimentary facies: Proximal - Distal turbidite
- Depth of water: Bathyal or deeper (Foraminifera)
- Lithofacies (Upper): Mudstone-dominant interbedded sandstone and mudstone
- Lithofacies (Upper, Minor): Sandstone
- Lithofacies (Lower): Sandy mudstone
- Lithofacies (Minor): Pumice tuff
- Paleocurrent: from West to East, from Southwest to Northeast
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Asama hotspring - Ibuka - Fujiisawa creek - Ashiurazawa creek - Mount Hakamagoshiyama - Mount Takeshimine, Matsumoto city, Nagano pref.; Mount Hachibuseyama - Mount Takabocchi, Okaya city, Nagano pref.
- Fossils: Trace fossils
- Fossils (Foraminifera): Ammodiscus incertus, Ammonia takanabensis, Bulimina striata, Cibicides sp., Cribrostmoides sp., Cyclammina sp., Dentalina sp., Dorothia sp., Fissurina sp., Frondicularia sp. Globigerina falconensis, Globigerina praebulloides, Globigerinita glutinata, Globigerinoides immaturus, Globigerinoides? sicanus, Globobulimina sp., Goesella sp., Haplophragmoides spp., Martinottiella sp., Nonion? sp., Pullenia bulloides, Signoilopsis sp., Sphaeroidinellopsis seminulina seminulina, Textularia spp., Trochammina sp., Valvulinelia nipponica
- Kosaka et al. (2022) Earth Science (Chikyu Kagaku), vol.76, no.4, pp.179-194 DOI
- Harayama et al. (2009) Geology of the Matsumoto District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 63p. (in Japanese with English abstract 3p.)