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On-Pm1 Tephra Kobayashi, 1960
Abbr.: On-Pm1
Invalid synonym: Pm-I, UP (Omiya Terrace)
- Tephra
- Pleistocene (100 - 95 ka; MIS 5c; 95.7 ka, 18O; 82 ka, U-Th; 90 - 70 ka, FT; 100 ka, TL)
- Correlation: Ka-1?
- Lithofacies: Volcanic ash, Pumice
- Source: Mamahahadake volcano group
- Host: Nakamura Formation, Nakaya Loam, Omiya Formation, Hitsujiyama Loam, Joso Formation, Shimosueyoshi Loam, Narimasu Formation, Sagamihara Terrace Deposit, Oshika Gravel Bed, Kakamigahara Terrace Deposits, Atsuta Formation
- Thickness: ca. 3 cm - 1 m
- On-Pm1
- [ Upper ]
- ~~~~~~~~~~~~~~
- SoP
- --------------
- OP1
- ~~~~~~~~~~~~~~
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Tohoku region - Chubu region, Honshu island, Japan; Lake Tsurugaike, Shimogo city, Minamiaizu county, Fukushima pref.; Mimakigahara, Komoro city, Nagano pref.; Tenryu river, Ina city, Nagano pref.; Nishiaraijuku, Kawaguchi city, Saitama pref.; Sankoji, Kisarazu city, Chiba pref.; Nomugitoge pass, Takane town, Takayama city, Gifu pref.
- Ito et al. (2022) Geology of the Kiryu and Ashikaga District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 101p. (in Japanese with English abstract 4p.)
- Okuno (2019) Jour. Geol. Soc. Japan, vol.125, no.1, pp.41-53 DOI
- Ueki et al. (2013) Geology of the Hachioji District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 137p. (in Japanese with English abstract 6p.)
- Nakazawa and Tanabe (2011) Geology of the Noda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 72p. (in Japanese with English abstract 3p.)
- Hara et al. (2010) Geology of the Mitsumine District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 110p. (in Japanese with English abstract 4p.)
- Komatsubara et al. (2004) Geology of the Kisarazu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 64p. (in Japanese with English abstract 3p.)
- Yoshida and Wakita (1999) Geology of the Gifu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 71p. (in Japanese with English abstract 4p.)
- Yamamoto (1999) Geology of the Tajima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 8p.)
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- Oka et al. (1984) Geology of the Tokyo-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 148p. (in Japanese with English abstract 7p.)
- Mitsunashi and Kikuchi (1982) Geology of the Yokohama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 105p. (in Japanese with English abstract 4p.)
- Kodama et al. (1980) Geology of the Misaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 38p. (in Japanese with English abstract 3p.)
- Oka et al. (1979) Geology of the Fujisawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 5p.)
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