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Sawayama Formation (Sasa, 1932) Shimazu and Teraoka, 1962
Invalid synonym: Kadonosawa Formation
- Coherent formation
- Ezo forearc basin
- Late Cretaceous
- Sedimentary facies: Regressive deposit
- Lithofacies: Sandstone, Siltstone, Conglomerate, Rhyolitic tuff
- Lithofacies (Minor): Coal, Amber
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Tamagawa seashore, Noda city, Kunohe county, Iwate pref.
- Fossils (Plants): Adiantopteris eximinum, Araucarites kujiensis, Araucarites longifolia, Asplenium dicksonianum, Asplenium? cfr. puilasokense, Carpolithes arcticus, Cinnamomophyllum sp., Cladophlebis borealis, Cladophlebis oerstedti, Cuplicarpus kujiensis, Cyparissidium gracile, Debeya tikhonovichii, Dicotylophyllum iwateanum, Dillenites lanceolatus, Dryophyllum subfalcatum, Equisetum sp., Gleichenites gracilis, Hemitrapa angulata, Laurophyllum kujianum, Menispermites kujiensis, Metasequoia sp., Monocotylophyllum sp., Nilssonia variabilis, Otozamites schenkii, Platanus cuneifolia, Sachalinia sachalinensis, Salix lancensis, Salvinia mildeana, Sapindophyllum quercifolium, Thuja cretacea, Trochodendroides arctica, Zamiopsis cf. pinnatifida, Ziziphus kujiensis
- Fossils (Pollen): Abietineaepollentites sp., Aquilapollenites evanidus, Cedripites sp., Foveosporites sawayamaensis, Gleicheniidites laelus, Jimboisporites kujiensis, Laevigatosporites haardti, Laevigatosporites ovatus, Laricoidites sp., Lycopodiacidites hamulatis, Monocolpopollenites kyushuensis, Monocolpopollenites pflugii, Monocolpopollenites cf. universallis, Piceaepollenites saccellus, Reticulosporites sp., Retitricolpites vulgaris, Rugubivesiculites fluens, Schizosporis scabratus, Stereisporites antiquosporites
- Umetsu et al. (2013) Jour. Geol. Soc. Japan, vol.119, Supplement, pp.82-95 DOI
- Yoshida et al. (1987) Geology of the Rikuchu-Ono District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 70p. (in Japanese with English abstract 6p.)
- Shimazu and Teraoka (1962) Rikuchu-Noda, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 53p. (in Japanese with English abstract 11p.)