Adakites without a slab: Remelting of hydrous basalt in the crust and shallow mantle of Borneo to produce the Miocene Sintang Suite and Bau Suite magmatism of West Sarawak
H. Tim Breitfeld,Colin G. Macpherson,Robert Hall,Matthew F. Thirlwall,Chris J. Ottley,Juliane Hennig-Breitfeld +5 more
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TLDR
In this paper, geochronological and geochemical data for Neogene magmatism from West Sarawak were presented, showing that the geochemical diversity is consistent with the Bau and West SARawak Sintang suites representing mixtures of mafic, mantle-derived magma with felsic magma derived from remelting of hydrous basaltic rocks in the crust.About:
This article is published in Lithos.The article was published on 2019-11-01 and is currently open access. It has received 22 citations till now. The article focuses on the topics: Adakite & Mafic.read more
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Lithosphere Erosion and Crustal Growth in Subduction Zones: Insights from Initiation of the Nascent East Philippine Arc
TL;DR: In this paper, the East Philippine Arc was studied and local variations in lithosphere thickness suggest that thinning is rapid and may be piecemeal, and the evolution of the arc lithosphere has been observed over time.
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Mesozoic Paleo-Pacific Subduction Beneath SW Borneo: U-Pb Geochronology of the Schwaner Granitoids and the Pinoh Metamorphic Group
H. Tim Breitfeld,Lorin Davies,Robert Hall,Richard Armstrong,Marnie Forster,Gordon S. Lister,Matthew F. Thirlwall,Nathalie Grassineau,Juliane Hennig-Breitfeld,Marco W. A. van Hattum +9 more
TL;DR: In this article, the authors presented new geochemistry, zircon U-Pb and 40Ar/39Ar age data from igneous and metamorphic rocks from the Schwaner Mountains to investigate their tectono-magmatic histories.
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Adakitic rocks at convergent plate boundaries: Compositions and petrogenesis
Qiang Wang,Qiang Wang,Lu-Lu Hao,Xiu-Zheng Zhang,Jin-Sheng Zhou,Jun Wang,Qi-Wei Li,Lin Ma,Long Zhang,Yue Qi,Gong-Jian Tang,Wei Dan,Jing-Jing Fan +12 more
TL;DR: In this article, the authors show that partial melting of mafic rocks can generate adakitic magmas under pressure, temperature, and hydrous conditions of 1.2-3.0 GPa, 800-1000°C, and 1.5-6.0 wt.% H2O.
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A Triassic to Jurassic arc in north Borneo: Geochronology, geochemistry, and genesis of the Segama Valley Felsic Intrusions and the Sabah ophiolite
Alex Burton-Johnson,Colin G. Macpherson,Ian L. Millar,Martin J. Whitehouse,Chris J. Ottley,Geoff Nowell +5 more
TL;DR: The Segama Valley Felsic Intrusions (SVFI) of Sabah, north Borneo, shows them to be arc-derived tonalites; not windows or partial melts of a crystalline basement beneath Sabah as mentioned in this paper.
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Oligocene-Miocene drainage evolution of NW Borneo: Stratigraphy, sedimentology and provenance of Tatau-Nyalau province sediments
H. Tim Breitfeld,Juliane Hennig-Breitfeld,Marcelle K. BouDagher-Fadel,Robert Hall,Thomson Galin +4 more
TL;DR: In this article, the Nyalau Formation (Biban sandstone Member and Upper Nyalua Member), Kakus Unit, and Merit-Pila Formation are divided into Oligocene to Lower Miocene sequences.
References
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Age and petrology of the Usun Apau and Linau Balui volcanics : windows to central Borneo’s interior.
Andrew Cullen,Colin G. Macpherson,Nur Iskandar Taib,Alex Burton-Johnson,Dennis Geist,Terry L. Spell,Richard Mani Banda +6 more
TL;DR: The Usun Apau plateau is composed largely of dacite and andesite erupted between 3.9 and 4.1 Ma as discussed by the authors, which is similar in age and character to the Linau Balui basalts about 100 km SE of the plateau.
Geologic Setting of the Kerendan Gas and Condensate Discovery, Tertiary Sedimentation and Paleogeography of the Northwestern Part of the Kutei Basin, Kalimantan, Indonesia
TL;DR: In this article, the authors recognized four phases of Tertiary sedimentation in the northwest part of the Kutei Basin and showed that the earliest phase of sedimentation probably began in the Early Eocene and continued through the Middle Eocene with basal deposits consisting of coarse non-marine clastics grading upwards into shallow-water clastics.
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Relationships Among Carbonate-Replacement Gold Deposits, Gold Skarns, and Intrusive Rocks, Bau Mining District, Sarawak, Malaysia
TL;DR: In this article, the authors discuss the key features of various styles of mineralization that formed the different types of gold deposits and discuss spatial and genetic relationships among the carbonate-replacement, vein, and calcic skarn gold deposits with Tertiary, calc-alkaline porphyritic intrusions.
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Le magmatisme post-collisionnel du Nord-Ouest de Borneo, produit de la fusion d'un fragment de croute oceanique ancre dans le manteau superieur
TL;DR: Benito et al. as mentioned in this paper found that microtonalites and dacites are typically subduction-related from a geochemical point of view, and they likely derive from the partial melting of metabasalts (garnet amphibolites or eclogites).