[ Top ] [ Japanese ]
Zempoji Formation (Tanai, 1951) Nishida and Chihara, 1966
Formerly defined as Kamigo Formation together with Oyama Formation.
- Type locality: Zenpoji - Yunohama, Tsuruoka city, Yamagata prefecture
- Coherent formation
- Miocene
- Intruded by: Shorenji Dolerite
- Lithofacies: Acidic - medium lapilli tuff, Tuffaceous sandstone, Mudstone
- Lithofacies (Minor): Andesite lava, Volcanic breccia, Conglomerate
- Tsuruoka, Yamagata pref.
- [ Upper ]
- --------------
- Oyama Formation
- --------------
- Zempoji Formation
- ~~~~~~~~~~~~~~
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Zenpoji - Yunohama - Mount Takadate - Mount Kinbo - Yuda river, Tsuruoka city, Yamagata pref.
- Fossils (Daijima flora): Acer protojaponica, Acer prototrifidium, Acer psedoginnala, Acer subpictum, Alangium cf. aequalifolium, Alnus miojaponica, Aralia miobippinata, Asplenium sp., Betula kamigoensis, Carpinus miocenica, Carpinus shimizui, Carpinus subcordata, Carpinus subyendoensis, Carpolithes japonica, Castanea atavia, Castanea castanefolia, Castanea miomollissima, Celtis bungeana, Celtis miobungeana, Cepharotaxus sp., Cercis sp., Cinnamomum oguniense, Comptonia naumanni, Cunninghamia protokonishii, Cyclobalanopsis huziokai, Dryophyllum cfr. dewalquei, Dryopteris cf. uttoensis, Entada mioformosana, Eucommia japonica, Fagus antipofi, Fagus hayatae, Ficaus sp., Flaegnus sp., Hydrangea sp., Ilex heerii, Juglans japonica, Leguminosites sp., Liquidambar formosa, Liquidambar miosinica, Magnolia cf. nipponica, Metasequoia occidentalis, Michilus nathorsti, Michilus ugoana, Ostrya huziokai, Ostrya uttoensis, Paliurus protonipponicus, Pistacia miochinensis, Platanus cf. aceroides, Platycarya miojaponica, Populus sp., Prabenzoin protopraecox, Pseudolarix sp., Pseudotsuga sp., Pterocarya asmmetrosa, Pterocarya ezonia, Quercus huziokai, Quercus mandraliscae, Quercus miovariabilis, Rhus hinokinaiensis, Rhus miosuccedanea, Rhus protoambigua, Robinia nipponica, Rosa usyuensis, Salix sp., Sapindus cf. kaneharai, Sapindus miocenicus, Sophora miojaponica, Quercus nathorsti, Torreya sp., Tsuga miocenica, Ulmus parvifolia, Ulmus subparvifolia, Zelkova serrata, Zelkova ungeri
- Tsuchiya et al. (1984) Geology of the Tsuruoka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 77p. (in Japanese with English abstract 5p.)