[ Top ] [ Japanese ]

Toyomasawa Formation Kamada, 1993

• Type locality: Toyomazawa, Motoyoshi town, Kesennuma city, Miyagi prefecture
• Coherent formation
• Pliocene (3.3, 3.2 Ma, FT)

• Sedimentary facies: Conglomerate
• Sedimentary facies (Minor): Sandstone, Siltstone, Tuff, Lignite

• Distribution: Toyomazawa - Tsuya - Koizumi, Motoyoshi town, Kesennuma city, Miyagi pref.; Kudanohama, Utatsu, Minamisanriku city, Motoyoshi county, Miyagi pref.
• Fossils: Conifers (Cones), Insects (Wings), Trace fossils (Pipe rocks)

• Kamada (1993) Geology of the Tsuya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 70p. (in Japanese with English abstract 6p.)