Cenozoic arc processes in Indonesia: Identification of the key influences on the stratigraphic record in active volcanic arcs

Hall, Robert; Smyth, Helen R.

doi:10.1130/2008.2436(03)

Cited by 59 publications

(65 citation statements)

References 82 publications

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“…As Jones et al (2009) have noted, the Paleoproterozoic climate may have been conducive to the type of intense weathering required to produce quartz-rich fi rst-cycle sediments in southern Laurentia. A much younger example of fi rst-cycle quartz-rich sediments is provided by sandstones interbedded with Tertiary arc vol canic rocks on the island of Java in the Indonesian arc (Hall and Smyth, 2008). Although these sediments plot in the recycled orogen fi eld of Dickinson et al (1983), they are fi rst-cycle sediments that have been subject to intense tropical weathering (see also van Hattum et al, 2006).…”

Section: Approach and Methodsmentioning

confidence: 99%

The Pinal Schist of southern Arizona: A Paleoproterozoic forearc complex with evidence of spreading ridge-trench interaction at ca. 1.65 Ga and a Proterozoic arc obduction event

Meijer

2014

Geological Society of America Bulletin

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The Pinal terrane of southern Arizona is composed mostly of quartz-sericite schists, meta-wackes, metavolcanic rocks, and granitoid and gneissic rocks, with minor metachert, meta-conglomerate, and carbonate rocks. Various tectonic settings have been suggested for the origin of this terrane. The existence of tectonic mélanges within the terrane, the presence of granitic rocks in close proximity to the mélanges, the presence of both oceanic and arc-like metavolcanic rocks within the terrane, the age distributions of igneous and meta-igneous rocks within the terrane, the deformational patterns within the terrane, and the width of the terrane all support a model in which the terrane was formed as a forearc-subduction complex that experienced a ridge subduction event at ca. 1.65 Ga. The Pinal terrane was likely the forearc-subduction complex to the Mazatzal arc terrane, which lies immediately to the north. Regional variations in the mineralogy of metavolcanic and metasedimentary rocks exposed within the terrane together with structural data suggest the terrane may have experienced an arc obduction event in the Proterozoic after the ridge subduction event. If it did, most of this arc terrane was eroded off the Pinal terrane in the 300 m.y. following the obduction event and prior to deposition of the Apache Group at ca. 1.32 Ga. There is a Paleoproterozoic arc terrane exposed in northern Mexico that may represent remnants of an obducted arc terrane. High-pressure-high-temperature metamorphic rocks (e.g., blueschists) have not been identifi ed within the Pinal terrane. PALEOPROTEROZOIC METASEDIMENTARY ROCKS OF THE PINAL TERRANEThis section will discuss aspects of the metasedimentary rocks in the Pinal terrane that may be critical to an evaluation of its original tectonic setting. Two areas where extensive For permission to copy, contact editing@geosociety.org

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Section: Approach and Methodsmentioning

confidence: 99%

The Pinal Schist of southern Arizona: A Paleoproterozoic forearc complex with evidence of spreading ridge-trench interaction at ca. 1.65 Ga and a Proterozoic arc obduction event

Meijer

2014

Geological Society of America Bulletin

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“…Bledug Kuwu is an active mud volcano located near the village of Kuwu in Central Java (Figure ) in the back‐arc region of the Java subduction system [ Whittaker et al ., ]. The subduction process and its associated arc volcanism shape the topography of Java [ Hall and Smyth , ].…”

Section: Geologic Setting Of Bledug Kuwumentioning

confidence: 99%

CO₂ flux from Javanese mud volcanism

et al. 2017

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Studying the quantity and origin of CO 2 emitted by back‐arc mud volcanoes is critical to correctly model fluid‐dynamical, thermodynamical, and geochemical processes that drive their activity and to constrain their role in the global geochemical carbon cycle. We measured CO 2 fluxes of the Bledug Kuwu mud volcano on the Kendeng Fold and thrust belt in the back arc of Central Java, Indonesia, using scanning remote sensing absorption spectroscopy. The data show that the expelled gas is rich in CO 2 with a volume fraction of at least 16 vol %. A lower limit CO 2 flux of 1.4 kg s −1 (117 t d −1 ) was determined, in line with the CO 2 flux from the Javanese mud volcano LUSI. Extrapolating these results to mud volcanism from the whole of Java suggests an order of magnitude total CO 2 flux of 3 kt d −1 , comparable with the expected back‐arc efflux of magmatic CO 2 . After discussing geochemical, geological, and geophysical evidence we conclude that the source of CO 2 observed at Bledug Kuwu is likely a mixture of thermogenic, biogenic, and magmatic CO 2 , with faulting controlling potential pathways for magmatic fluids. This study further demonstrates the merit of man‐portable active remote sensing instruments for probing natural gas releases, enabling bottom‐up quantification of CO 2 fluxes.

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“…In Sumatra volcanic activity became widespread from the Middle Eocene (Crow 2005). Recent work in Java suggests subduction resumed in the Middle Eocene forming a volcanic arc that ran the length of Java (Hall & Smyth 2008, Smyth et al 2007). In Sumatra the Palaeogene arc was in a similar position to older subduction arcs (McCourt et al 1996, Crow 2005) but in Java it formed well to the south of the youngest Cretaceous active margin.…”

Section: Eocene Resumption Of Subduction and Its Consequencesmentioning

confidence: 99%

Southeast Asia's changing palaeogeography

Hall¹

2009

blum - j plant tax and plant geog

375

482

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Geology provides the basis for understanding distributions of faunas and floras in Southeast Asia but only via a complex interplay of plate movements, palaeogeography, ocean circulation and climate. Southeast Asia grew incrementally by the addition of continental fragments, mainly rifted from Australia, and added to the margins of Sundaland as a result of subduction. Sundaland was an almost permanent land area from the beginning of the Mesozoic. The addition of the continental fragments of Southwest Borneo and later East Java -West Sulawesi formed a much larger emergent land area by the Late Cretaceous that extended from Indochina to West Sulawesi. Subduction resumed at the Sundaland margin in the Eocene and this led to widespread rifting within Sundaland, and formed one of the most important barriers at its edge, the Makassar Straits. Australia began to collide with Southeast Asia about 25 million years ago, effectively closing the former deep ocean separating the two continents, and forming the region now known as Wallacea. Collision, volcanism, and subduction-related processes have led to rise of mountains but also formed new oceans within this complex region. Plate tectonic movements and collisions were intimately linked to changing topography, bathymetry and land/sea distributions which have in turn influenced oceanic circulation and climate. As the deep-water barrier between Australia and Southeast Asia was eliminated and mountains rose, deep marine basins also formed. Eustatic changes in sea level further contributed to a complex palaeogeography. The present gateway between the Pacific and Indian Oceans is the only low latitude oceanic passage between the world's oceans, and is an important influence on local and probably global climate. The gateway is likely to have been just as significant in the past. Understanding the geology, then palaeogeography, and then their oceanic and climatic consequences are vital steps on the way to interpreting present distributions of plants and animals.

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Cenozoic arc processes in Indonesia: Identification of the key influences on the stratigraphic record in active volcanic arcs

Cited by 59 publications

References 82 publications

The Pinal Schist of southern Arizona: A Paleoproterozoic forearc complex with evidence of spreading ridge-trench interaction at ca. 1.65 Ga and a Proterozoic arc obduction event

The Pinal Schist of southern Arizona: A Paleoproterozoic forearc complex with evidence of spreading ridge-trench interaction at ca. 1.65 Ga and a Proterozoic arc obduction event

CO₂ flux from Javanese mud volcanism

Southeast Asia's changing palaeogeography

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Cenozoic arc processes in Indonesia: Identification of the key influences on the stratigraphic record in active volcanic arcs

Cited by 59 publications

References 82 publications

The Pinal Schist of southern Arizona: A Paleoproterozoic forearc complex with evidence of spreading ridge-trench interaction at ca. 1.65 Ga and a Proterozoic arc obduction event

The Pinal Schist of southern Arizona: A Paleoproterozoic forearc complex with evidence of spreading ridge-trench interaction at ca. 1.65 Ga and a Proterozoic arc obduction event

CO2 flux from Javanese mud volcanism

Southeast Asia's changing palaeogeography

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Product

Resources

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CO₂ flux from Javanese mud volcanism