Sasago Unit

Accretionary complex
Deposition: middle Oligocene (Radiolarians)

Sedimentary facies: Marine
Lithofacies: Sandstone, Shale
Lithofacies (Minor): Serpentinite, Talc-amphibole rocks

Sagamiko Group
[ Upper ]
/--/--/--/--/-
Fukashiro Unit
/--/--/--/--/-
Gongenyama Unit
/--/--/--/--/-
Seto Unit
/--/--/--/--/-
Sasago Unit
/--/--/--/--/-
[ Lower ]

Shimanto Belt (Sagamihara, Kanagawa pref).
[ Upper ]
/--/--/--/--/-
Kobotoke Group
/--/--/--/--/-
Sagamiko Group
/--/--/--/--/-
[ Lower ]

Shimanto Belt
[ Upper ]
/--/--/--/--/-
Northern Shimanto Belt
/--/--/--/--/-
Southern Shimanto Belt
?--?--?--?--?-
[ Lower ]

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

Distribution: Sasago, Otsuki city, Yamanashi pref.
Fossils (Radiolarians): Albatrossidium sp., Artophormis gracilis, Bathropyramis sp., Bekoma sp., Calocylas asperum, Carpocanistrum sp., Cornutella sp., Dictyophimus pocillum, Dorcadospyris cf. ateuchus, Eucyrtidiidae gen. et sp. indet., Lamptonium fabaeforme, Lithocyclia angusta, Lithomitra lineata, Lychnocanoma conica, Lychnocanoma grande, Periphaena decora, Podocyrtis ampla, Podocyrtis (Lampterium) mirabilis, Siplocyclas sp., Theocyrtis tuberisa

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.)