Hatakechaya Ultramafic Rocks

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Hatakechaya Ultramafic Rocks Uchino et al., 2017 (Photo)

Type locality: Hatakechaya, Matsuo town, Toba city, Mie prefecture
Accretionary complex
Serpentinite Mélange
Ultramafic rocks along Gokasho-Arashima Tectonic Line
Glaucophane schist: Silurian (437 Ma, U-Pb)

Lithofacies: Serpentinite
Lithofacies (Minor): Clinopyroxinite
Lithofacies (Blocks): Dolerite, Diorite, amphibolite, Glaucophane schist

Thickness: ca. 500 m or thicker
Distribution (South - North): 500 m
Upper limit: Thrust fault (Shiraki Complex)
Lower limit: Thrust fault (Aonomine Complex, Matsuo Formation)

Kurosegawa Belt (Toba, Mie pref.)
[ Young ]
/--/--/--/--/-
Toya Complex
/--/--/--/--/-
Toba Group
/--/--/--/--/-
Yufune Formation
/--/--/--/--/-
Kunaga Formtion
/--/--/--/--/-
Hatakechaya Ultramafic Rocks
/--/--/--/--/-
[ Old ]

Chichibu Belt
[ Upper ]
/--/--/--/--/-
Kurosegawa Belt
/--/--/--/--/-
Northern Chichibu Belt
/--/--/--/--/-
Southern Chichibu Belt
/--/--/--/--/-
[ Lower ]

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

Distribution: Matsuo town - Shiraki town, Toba city, Mie pref.; Gochi, Isobe town, Shima city, Mie pref.

Uchino et al. (2017) Geology of the Toba District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 141p. (in Japanese with English abstract 5p.)