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 Belt

Younger Ryoke Granitoids: Takijiri Adamellite; Ishikiri Tonalite; Kisaichi Granite; Katano Granite; Shijonawate Granodiorite; Tsuda Granite; Taike Granite

Ikomayama Gabbro

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

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)

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

Seika Formation

Manchidani Formation: Larix Formation

Ibaraki Formation: Hacchoike Member; Mitsuike Member

Senriyama Formation: Shinden Member; Shimakumayama Member

Shinkori Formation

Kori Formation

Ikaga Formation

Tanabe Formation: Zakuro Member; Mizutori Member

Inuidani formation

Higashibata formation

Shimakumayama formation

Fuke 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

Pink tuff bed

Shishimuta-Azuki Tephra

Hacchoike 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

Senriyama tuff bed

Tatsugaike tuff bed

Komyoike tuff bed

Imakuma tuff bed

Lower Terrace Deposits, Nishiyama hills

Holocene (0.01-0 Ma)

Osakawan Formation: Umeda Formation; Nanko Formation

Namba Formation: Ma 13

Age unknown

Kabutoyama andesite

Geological structures

Arima-Takatsuki tectonic line

Koyo fault

Ashiya fault

Gosukebashi fault

Otsuki fault

Butsunenjiyama fault

Ikoma fault