Informasi Data Leksikon Stratigrafi Indonesia
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Bandung, Geological Research & Development Centre: 2003
Name of Unit: Limauhantu Volcanics
Geology
Description
Typically consists of glass shards and 5 to 80% white pumice fragments (almost devoid of mafic minerals), 1-20 cm in diameter; slightly consolidated. Locally contain layers of quartz rich sand as well as layers of gravel consisting of pebbles and cobbles of quartz, volcanic rocks and limestone. Local concentration of obsidian and pitchstone boulders. Andesitic (basaltic) association consists of undifferentiated flows, lahars tuff, fanglomerate and other colluvial deposits from conical, little dissected strato volcanoes of Pleistoceneor Holocene age.
Typically consists of glass shards and 5 to 80% white pumice fragments (almost devoid of mafic minerals), 1-20 cm in diameter; slightly consolidated. Locally contain layers of quartz rich sand as well as layers of gravel consisting of pebbles and cobbles of quartz, volcanic rocks and limestone. Local concentration of obsidian and pitchstone boulders. Andesitic (basaltic) association consists of undifferentiated flows, lahars tuff, fanglomerate and other colluvial deposits from conical, little dissected strato volcanoes of Pleistoceneor Holocene age.
Stratigraphic Relationship
Hornblende hypersthene pumiceous tuff overlies the unit.
Hornblende hypersthene pumiceous tuff overlies the unit.
Formation Name
Pumice Tuff and Andesite (Basalt) of PADANG (Qpt) [1996]
Nomenclature
Kastowo et al. (1996)
Pumice Tuff and Andesite (Basalt) of PADANG (Qpt) [1996]
Nomenclature
Kastowo et al. (1996)
Fossils
No data
Unit Code:
Qpt
Qpt
Age :
No Data
No Data
Thickness (m):
No Data
No Data
Tectonic Settings:
Magmatic arc or volcanic arc
Magmatic arc or volcanic arc
Depositional Settings:
Terrestrial or subaerial volcanism
Terrestrial or subaerial volcanism
Geographic Information
Coordinate:
100.192, -0.526
100.192, -0.526
Region :
Kab. Agam
Kab. Agam
Province :
Sumatera Barat
Sumatera Barat
Type Locality:
Southwest and northeast Maninjau Lake, Padang Quadrangle, Sumatera
Southwest and northeast Maninjau Lake, Padang Quadrangle, Sumatera
Map Sheet:
Solok
Solok
Map Scale:
1:250.000
1:250.000
Map Sheet number:
815
815
Distribution of Unit:
Padang and Solok Quadrangle
Padang and Solok Quadrangle