Geochemistry of quaternary volcanism in the Sunda-Banda arc, Indonesia, and three-component genesis of island-arc basaltic magmas

Wheller, G.E.; Varne, R.; Foden, John; Abbott, M. J.

doi:10.1016/0377-0273(87)90041-2

Cited by 145 publications

(57 citation statements)

References 64 publications

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“…The emplacement age of the arc tholeiites that constitute part of the MRU remains unknown from the present geochronological evidence. Despite this uncertainty, we assume that the mafic and felsic magmatisms are roughly coeval, as observed in some present-day magmatic arcs (e.g., Wheller et al, 1987;Ohba et al, 2009). At the end of the Norian, the Luang Prabang Basin was drowned as attested by conodonts and ammonites from the ML Fm.…”

Section: Toward a Geodynamical Evolution Model For The Luang Prabang mentioning

confidence: 99%

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The volcaniclastic series from the Luang Prabang Basin, Laos: A witness of a triassic magmatic arc?

Rossignol

Bourquin

Poujol

et al. 2016

Journal of Asian Earth Sciences

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Section: Toward a Geodynamical Evolution Model For The Luang Prabang mentioning

confidence: 99%

“…comparison with the present day distribution of tholeiitic rocks that are intimately associated with calk-alkaline magmatic suites cropping out within the Japan arc (e.g., Ohba et al, 2009) or the Sunda-Banda arc (e.g., Wheller et al, 1987).…”

Section: Toward a Geodynamical Evolution Model For The Luang Prabang mentioning

confidence: 99%

The volcaniclastic series from the Luang Prabang Basin, Laos: A witness of a triassic magmatic arc?

Rossignol

Bourquin

Poujol

et al. 2016

Journal of Asian Earth Sciences

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“…Petrochemical data were collected from various publications and primary data. Secondary petrochemical data from Quaternary volcanoes were compiled from Whitford (1975), Nicholls et al (1980), Nicholls and Whitford (1983), Wheller et al (1987), Soeria-Atmadja et al (1985, 1991, Bellon et al (1989), Bronto (1990), Leterrier et al (1990), Sitorus (1990), Vukadinovic and Sutawidjaja (1995), Bogie and MacKenzie (1998), Sunardi and Kimura (1998), Camus et al (2000), Carn and Pyle (2001), and Gertisser and Keller (2003). Petrochemical data from Tertiary volcanoes were collected from, among others, Alderton et al (1994), Soeria-Atmadja et al (1991, 1994, Sukarna (1998), Sunardi and Kimura (1998), Alves et al (1999), andJICA-JOGMEC (2004).…”

Section: Datasetsmentioning

confidence: 99%

“…Therefore, spatial-temporal evolutions and geochemical variations of island arc volcanoes can be related with different tectonic settings and sources of partial melting (Green, 1980;Nicholls et al, 1980;Gill, 1981;Wheller et al, 1987;Peacock et al, 1994;Martin, 1999).…”

mentioning

confidence: 99%

Cenozoic Island Arc Magmatism in Java Island (Sunda Arc, Indonesia): Clues on Relationships between Geodynamics of Volcanic Centers and Ore Mineralization

Setijadji¹,

Kajino²,

Imai³

et al. 2006

Resource Geology

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. Java island, regarded as a classic example of island arcs, is built through multi events of Cenozoic arc magmatism produced by the subduction of Indian‐Australian oceanic crusts along the southern margin of Eurasian plate. Regional crustal compositions, subducted slabs, and tectonics determined the spatial‐geochemical evolution of arc magmatism and regional metallogeny. Tertiary geodynamics of island arc was dominated by backarc‐ward migrations of volcanic centers. Only after the Miocene‐Pliocene roll‐back effects of retreating slab, slab detachment, and backarc magmatism took place in central Java. The source of arc magmas is mainly partial melting of mantle wedge, triggered by fluids released from dehydrated slabs. Increasing potassium contents of arc magmas towards the backarc‐side and younger magmas is typical for all magmas, while alkali and incompatible trace elements ratios are characteristics for different settings of volcanic centers. The oceanic nature of crust and the likely presence of hot slab subducted beneath the eastern Java determine the occurrences of adakitic magmas. Backarc magmatism has a deeper mantle source with or without contributions from subduction‐related materials. The domination of magnetite‐series magmatism determines the sulfide mineralization for the whole island. District geology, geodynamics, and magma compositions in turn control particular styles and scales of precious metals concentrations. Deep‐seated crustal faults have focused the locations of overlapping volcanic centers and metalliferous fluids into few major gold districts. Porphyry deposits are mostly concentrated within Lower Tertiary (early stage) volcanic centers in eastern Java which are not covered by younger volcanic centers, and whose sulfides are derived from partial melting of basaltic parental materials. On the other hand, high‐grade low‐sulfidation epithermal gold deposits formed in later stages of arc development and are spatially located within younger volcanic centers (Upper Miocene‐Pliocene) that overlap the older ones. Gold in low‐sulfidation epithermal system is likely to be derived from crustal materials. The overall interacting factors resulting in the petrochemical systematics that are applicable for exploration: 1) early‐stage volcanic centers with high Sr/Y and Na2O/K2O ratios are more prospective for porphyry mineralization, while 2) later‐stage volcanic centers with high K2O, total alkali, and K2O/Na2O ratios are more prospective for low‐sulfidation epithermal mineralization.

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“…Seismic reflection data suggest that Flores is built on a 5 10 km thick oceanic crust (Curray et al, 1977). East of Flores Island, the volcanic rocks from the southern part of the Banda arc have a distinctive chemical and isotopic composition when compared with those located to the west of Flores (Varne and Foden, 1986;Wheller et al, 1987). The former, eastern situation is widely regarded as an example of arc volcanic rocks that have been modified by interaction with continental crustal material (Whitford et al, 1977;Margaritz et al, 1978;Whitford and Jazek, 1979).…”

Section: Geologic and Volcanic Settingmentioning

confidence: 99%

Morphometric age and petrological characteristics of volcanic rocks from the Bajawa Cinder Cone Complex, Flores, Indonesia

Sucipta

Takashima

Muraoka

2006

Journal of Mineralogical and Petrological Sciences

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The Bajawa Cinder Cone Complex consists of at least 78 cinder cones, which can be grouped into five morphometric ages. The oldest group, Bajawa 01, is dated between 0.53 and 0.73 Ma. The groups Bajawa 02, 03, and 04 have an age range from 0.41 Ma to 0.51 Ma, 0.32 Ma to 0.40 Ma, and 0.22 Ma to 0.31 Ma, respectively; the youngest cinder cone group, Bajawa 05, is aged between 0 and 0.20 Ma.Three batches of magma have contributed to the long eruptive episode of the complex. Magma mixing and fractional crystallization were important processes in differentiation. Magma mixing may have been caused by recharge of a mafic contributor to form a mixed magma in a temperature range of 836 °C 978 °C and at a pressure of less than 1.25 kbar before eruption.

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Geochemistry of quaternary volcanism in the Sunda-Banda arc, Indonesia, and three-component genesis of island-arc basaltic magmas

Cited by 145 publications

References 64 publications

The volcaniclastic series from the Luang Prabang Basin, Laos: A witness of a triassic magmatic arc?

The volcaniclastic series from the Luang Prabang Basin, Laos: A witness of a triassic magmatic arc?

Cenozoic Island Arc Magmatism in Java Island (Sunda Arc, Indonesia): Clues on Relationships between Geodynamics of Volcanic Centers and Ore Mineralization

Morphometric age and petrological characteristics of volcanic rocks from the Bajawa Cinder Cone Complex, Flores, Indonesia

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