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Matsue Formation (Tomita and Sakai, 1937) Tai, 1952

• Type locality: Hokki town, Matsue city, Shimane prefecture
• Coherent formation
• middle - late Miocene (12 - 11 Ma)
• Correlation: Takashibiyama Formation, Hikawa Formation

• Sedimentary facies: Marine, Brackish
• Sedimentary facies: Inner bay, Shallow lakes
• Water temperature: Warm ocean current
• Lithofacies: Sandstone, Mudstone
• Lithofacies (Minor): Alkali basalt lava, Trachyte, Tuff, Lignite

• Thickness: ca. 350 - 550 m
• Upper limit: Unconformity (Wakurayama Dacite)
• Lower limit: Conformity (Furue Formation, Fujina Formation)

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

• Distribution: Hokki town - Otsuka, Matsue city, Shimane pref.
• Fossils: Shrimps, Fish
• Fossils (Matsue fauna):

• Kano (2018) Jour. Geol. Soc. Japan, vol.124, no.10, pp.781-803 DOI
• Sawada et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.4, pp.267-284 DOI
• Matsuura et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.4, pp.312-320 DOI
• Sato et al. (2011) Jour. Geol. Soc. Japan, vol.117, no.8, pp.439-450 DOI
• Tanaka and Nomura (2009) Jour. Geol. Soc. Japan, vol.115, no.6, pp.261-265 DOI
• Utada (2007) Jour. Geol. Soc. Japan, vol.113, no.8, pp.438-453 DOI
• Kano et al. (1991) Geology of the Imaichi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 5p.)
• Kano and Yoshida (1985) Geology of the Sakaiminato District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 57p. (in Japanese with English abstract 5p.)