Iwamurotoho Ultramafic Rocks

[ Top ] [ Japanese ]

Iwamurotoho Ultramafic Rocks

Plutonic rocks
Ophiolite

Lithofacies:

Katashina Belt
[ Upper ]
/--/--/--/--/-
Nakanotake Metagabbros
/--/--/--/--/-
Shibutsusan Ultramafic Rocks
/--/--/--/--/-
Tokura Ophiolite
/--/--/--/--/-
Kawaba Ultramafic Rocks-Metagabbro-Schist Complex
/--/--/--/--/-
Iwamurotoho Ultramafic Rocks
/--/--/--/--/-
[ Lower ]

Joetsu Belt
[ Upper ]
/--/--/--/--/-
Katashina Belt
/--/--/--/--/-
Tanigawadake Belt
/--/--/--/--/-
[ Lower ]

Maizuru Belt
[ North ]
/--/--/--/--/-
North zone
/--/--/--/--/-
Central zone
/--/--/--/--/-
South zone
/--/--/--/--/-
[ South ]

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

Distribution: Iwamuro, Numata city, Gunma pref.

Chihara and Komatsu (1992) Geology of the Hakkaisan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 107p. (in Japanese with English abstract 8p.)