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List of geological units in Osaka prefecture

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

Triassic-Jurassic

Tanba group

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

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 part

Ma 10

Ma 9

Ma 8

Ma 7

Ma 6

Ma 5

Ma 4

Ma 3

Lower part

Ma 2

Ma 1

Ma 0

Ma -1

Lowermost part

Inuidani formation

Zakuro formation

Mizutori formation

Higashibata formation

Shimakumayama formation

Fuke formation

Larix 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

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