Cretaceous radiolarians from the Luk-Ulo Melange Complex in the Karangsambung area, central Java, Indonesia

Wakita, Koji; Munasri,; Bambang, Widoyoko

doi:10.1016/0743-9547(94)90063-9

Cited by 74 publications

(43 citation statements)

References 2 publications

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“…High-pressure and ultrahigh-pressure (UHP) metamorphic rocks at Karangsambung, East Java, such as jadeite-quartz-glaucophane bearing rocks and eclogites, are diagnostic of subduction metamorphism . Radiolarian biostratigraphy (Wakita et al 1994) and K-Ar dates on muscovite from quartz-mica schist (124-110 Ma; Miyazaki et al 1998;Parkinson et al 1998) yield Cretaceous ages for subduction-related rocks. In the Meratus Mountains, SE Borneo, ultramafic rocks, basalt, chert, siliceous shale, mélange and schist are interpreted to represent accreted arc and oceanic-type crust (Parkinson et al 1998;Wakita et al 1998).…”

Section: Subduction Complexesmentioning

confidence: 99%

“…The collision must have been later than the youngest radiolarian ages (Wakita et al 1994;Wakita et al 1998) associated with pillow basalts in Java and Borneo (early Late Cretaceous), and the microcontinent must have been in place before initiation of the present phase of subduction at c. 45 Ma (Hall 2002(Hall , 2009). The timing of collision between the Woyla Arc and Sumatra is estimated at 98-92 Ma (M. J.…”

Section: Subduction Complexesmentioning

confidence: 99%

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A record of continental collision and regional sediment flux for the Cretaceous and Palaeogene core of SE Asia: implications for early Cenozoic palaeogeography

Clements

Hall

2011

JGS

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Section: Subduction Complexesmentioning

confidence: 99%

Section: Subduction Complexesmentioning

confidence: 99%

A record of continental collision and regional sediment flux for the Cretaceous and Palaeogene core of SE Asia: implications for early Cenozoic palaeogeography

Clements

Hall

2011

JGS

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“…Geologically, the basement of South Sulawesi consists mainly of metamorphic, volcanic and sedimentary rocks emplaced during the early to late Cretaceous (van Bemmelen, 1949;Hamilton, 1979;Wakita and Bambang, 1994) and subsequently covered by Paleogene to Neogene volcanics and clastic sediments (van Bemmelen, 1949;Katili, 1978;Bergman et al, 1996). Sulawesi belongs to an area that has a complex tectonic setting (Hall and Blundell, 1996).…”

Section: The Spermonde Archipelagomentioning

confidence: 99%

Reef Island Evolution and Dynamics: Insights from the Indian and Pacific Oceans and Perspectives for the Spermonde Archipelago

Kench

Mann

2017

Front. Mar. Sci.

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Along southwestern Sulawesi, Indonesia, the Spermonde Archipelago comprises some 120 islands of variable size and degree of anthropogenic modification. Comparable to adjacent areas in Southeast Asia, the Spermonde Archipelago is characterized by the congregation of a naturally high marine biodiversity and, at the same time, a high population density influencing the surrounding environmental conditions. As a consequence, during the last decades, research projects that have been carried out in the Spermonde mainly focused on social, ecological, political and economic interactions. However, geological and geomorphological aspects of the coral reef islands are less well understood and there have been few studies undertaken since the pioneering work of Umbgrove, Kuenen, and Verstappen in the Indonesian archipelago in the early to mid-twentieth century. Here we review the existing studies, with a focus on the Spermonde Archipelago, and reconcile them with more recent works on reef island evolution and dynamics from the Indian and Pacific Oceans. This synthesis shows that reef islands in the Spermonde Archipelago are well suited for geomorphological investigations, and provides perspectives for future reef island research in that area that will have global interest. We identify four research priorities: (1) To identify the timing and chronology of island formation; (2) Improved understanding of carbonate budgets and sediment generation that contribute to island building; (3) Document morphological changes in reef islands at seasonal to decadal timescales, and; (4) Quantify the process regime that drives sediment transport and island change with particular focus on the role of different monsoon seasons.

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“…5d), are diagnostic of subduction metamorphism . Radiolarian biostratigraphy (Wakita & Munasri 1994) and K -Ar dates on muscovite from quartz-mica schist (124 -110 Ma; Miyazaki et al 1998;Parkinson et al 1998) yield Cretaceous ages for subduction-related rocks. In the Meratus Mountains, SE Borneo, ultramafic rocks (Fig.…”

Section: Subduction Complexesmentioning

confidence: 99%

Subsidence and uplift by slab-related mantle dynamics: a driving mechanism for the Late Cretaceous and Cenozoic evolution of continental SE Asia?

Clements

Burgess

Hall

et al. 2011

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Continental SE Asia is the site of an extensive Cretaceous-Paleocene regional unconformity that extends from Indochina to Java, covering an area of c. 5 600 000 km 2 . The unconformity has previously been related to microcontinental collision at the Java margin that halted subduction of Tethyan oceanic lithosphere in the Late Cretaceous. However, given the disparity in size between the accreted continental fragments and area of the unconformity, together with lack of evidence for requisite crustal shortening and thickening, the unconformity is unlikely to have resulted from collisional tectonics alone. Instead, mapping of the spatial extent of the mid-Late Cretaceous subduction zone and the Cretaceous-Paleocene unconformity suggests that the unconformity could be a consequence of subduction-driven mantle processes. Cessation of subduction, descent of a northward dipping slab into the mantle, and consequent uplift and denudation of a sediment-filled Late Jurassic and Early Cretaceous dynamic topographic low help explain the extent and timing of the unconformity. Sediments started to accumulate above the unconformity from the Middle Eocene when subduction recommenced beneath Sundaland.

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Cretaceous radiolarians from the Luk-Ulo Melange Complex in the Karangsambung area, central Java, Indonesia

Cited by 74 publications

References 2 publications

A record of continental collision and regional sediment flux for the Cretaceous and Palaeogene core of SE Asia: implications for early Cenozoic palaeogeography

A record of continental collision and regional sediment flux for the Cretaceous and Palaeogene core of SE Asia: implications for early Cenozoic palaeogeography

Reef Island Evolution and Dynamics: Insights from the Indian and Pacific Oceans and Perspectives for the Spermonde Archipelago

Subsidence and uplift by slab-related mantle dynamics: a driving mechanism for the Late Cretaceous and Cenozoic evolution of continental SE Asia?

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