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Kumano Group

Invalid synonym: Miyai Group

• Type locality: Mie prefecture
• Coherent formation
• early - middle Miocene
• Contemporaneous heterotopic facies: Interfingered (Shionomisaki Ingeous Complex)
• Correlation (Lower): Owase Group
• Intruded by: Kozagawa Arculate Dyke

• Sedimentary facies: Marine
• Depth of water: Shallow - Bathyal
• Lithofacies: Conglomerate, Sandstone, Mudstone

• Thickness: ca. 1,500 - 4,000 m
• Upper limit: Unconformity (Konogi Rhyolite, Owase-Shirahama Pyroclastic Rocks)
• Lower limit: Unconformity (Otonashigawa Group, Uchikoshi Formation)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Kumano city, Mie pref.; Kushimoto city, Higashimuro county, Wakayama pref.; Komugi, Irokawa, Nachikatsuura city, Higashimuro county, Wakayama pref.
• Fossils (Shellfishes): Anadara kiiensis, Anadara setoensis, Angulus cf. venulosus, Barbatia sp., Callista macra, Conus tokunagai, Crassatellites nanus, Dentalium cf. lentum, Dosinia akaisiana, Dosinia anguloides, Dosinia nomura, Dosinia odosensis, Felaniella ferruginata, Gari sp., Glauconome sp., Glycymeris junghuhuni, Glycymeris vestiioides, Macoma tokyoensis, Meretrix cf. meretrix, Monia cf. radiata, Natica janthostoma, Neptunea cf. arthritica, Nassarius cf. japonicus, Nassarius seclusus, Neverita cf. didyma, Olivella cf. iwakiensis, Phaxas sp., Pecten sp., Saccella congiensis, Solen cf. gouldi, Timoclea nipponica, Trochus sp., Turritella kadonosawaensis, Turritella kiiensis, Turritella s-hatai sagai, Vasticardium sp., Venerupis siratoriensis

• Bessho and Nakaya (2011) Jour. Geol. Soc. Japan, vol.117, no.8, pp.423-438 DOI
• Nakajima et al. (2010) Jour. Geol. Soc. Japan, vol.116, no.7, pp.374-387 DOI
• Kawakami and Hoshi (2007) Jour. Geol. Soc. Japan, vol.113, no.7, pp.296-309 DOI
• Suzuki et al (1979) Geology of the Kurisugawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 54p. (in Japanese with English abstract 5p.)
• Murayama (1954) Shingu, Atawa, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 27p. (in Japanese with English abstract 6p.)