List of geological units in Osaka prefecture

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A list of stratigraphic units, igneous bodies, and geological structures reported from Osaka prefecture, Kinki region, Honshu island, Japan.

Photographs of geological units in Osaka prefecture

Permian (298.9-252.17 Ma)

Ultra-Tamba Belt: Kunisaki Complex; Inagawa Complex; Takatsuki Formation

Jurassic (201.3-145.0 Ma)

Tamba Belt: Minoo Complex; Shiroyama Complex; Honzanji Complex; Tano Complex

Cretaceous (145.0-66.0 Ma)

Ryoke granites

Senan group

Sennan Rhyolites

Izumi Group

Northern marginal facies

Mutsuo Formation: Takihata Alternation Member; Azenotani Mudstone Member; Kasayama Conglomerate Member

Main facies: Kokawa Formation; Iwade Formation; Shindachi Formation; Kada Formation

Southern facies: Nate Formation

Younger Ryoke Granitoids: Takijiri Adamellite

Arima Group: Sasori Tuff Breccia; Rurikei Formation

Kenbi Granite

Sugio Granite Porphyry

Kodaiji Quartz Diorite

Ibaragi Granitic Complex: Myoken Pluton; Nose Pluton

Mikusayama Granitic Complex

Hara Granite

Settsukyo Granite

Miocene (23.03-5.33 Ma)

Muro Pyroclastic Flow Deposit

Kobe group

Yamabe group

Kannabi formation

Shionomiya volcanic rocks

Dakeyama volcanic rocks

Tamateyama Tuff Bed

Pliocene-Pleistocene

Miyakojima Formation

Pleistocene (2.58- 0.01Ma)

Tenman formation

Osaka Group

Upper Most part: Ma 10; Ma 9; Ma 8; Ma 7

Upper part: Ma 6; Ma 5; Ma 4; Ma 3

Lower part: Ma 2; Ma 1; Ma 0; Ma -1

Lower Most part

Shodai Formation

Inuidani formation

Zakuro formation

Mizutori formation

Higashibata formation

Shimakumayama formation

Fuke formation

Larix formation

Shitsukawa Formation

Terrace Deposits

Higher Terrace Deposits: Ma 11

Middle Terrace Deposits: Ma 12

Lower Terrace Deposits

Tanaka Formation: Ma 11 (3); Ma 11 (2); Ma 11 (1); Ma 1.7; Ma 1.5; Ma 1.3; Ma 0.5

Shishimuta-Azuki Tephra

Yellow tuff bed

Pink tuff bed

Shimakumayama tuff bed

Kasuri tuff bed

Hacchoike tuff bed

Sakura tuff bed

Kitadani tuff bed

Higashibata tuff bed

Fugenji tuff bed

Higashibataguchi tuff bed

Susudani-I tuff bed

Susudani-II tuff bed

Zakuro tuff bed

Inuidani tuff bed

Rotary tuff bed

Tsuchimaru tuff bed

Shinden tuff bed

Senriyama tuff bed

Tatsugaike tuff bed

Komyoike tuff bed

Yamada tuff bed

Imakuma tuff bed

Lower Terrace Deposits, Nishiyama hills

Pleistocene-Holocene

Namba Formation: Ma 13

Holocene (0.01-0 Ma)

Umeda formation

Age unknown

Kabutoyama andesite

Geological structures

Arima-Takatsuki tectonic line

Koyo fault

Ashiya fault

Gosukebashi fault

Otsuki fault

Butsunenjiyama fault

Ikoma fault