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dc.contributor.authorHarpel, Christopher J.en
dc.contributor.authorStimac, Jamesen
dc.contributor.authorPrimulyana, Sofyanen
dc.contributor.authorde Harpel, Cecilia F. Avendaño Rodríguezen
dc.identifier.citationHarpel, C. J., Kushendratno., Stimac, J., de Harpel, C. F. A. R., & Primulyana, S. (2019). The Orange Tuff : a Late Pleistocene tephra-fall deposit emplaced by a VEI 5 silicic Plinian eruption in West Java, Indonesia. Bulletin of Volcanology, 81(6), 33-. doi:10.1007/s00445-019-1292-yen
dc.description.abstractA VEI 5 dacite eruption emplaced the Orange Tuff about between 34.3 cal kBP and 17.2 cal kBP. Gunung Salak is the unit’s source and the Orange Tuff represents the most recent such eruption from any of the volcanoes southwest of Bogor, Indonesia. The Orange Tuff is the region’s first such documented tephra-fall deposit whose characteristics and phenocryst geochemistry make it readily identifiable over at least 1250 km2. Magnetite compositions and temperature and fO2 estimates inferred from Fe-Ti oxide compositions are particularly useful for identifying the unit. Deposit characteristics suggest that the eruption lasted 1–11 h with mass eruption rates of 1.0–8.3 × 108 kg/s and a column height of 31–40 km. The eruption’s column height and the deposit’s 2.5–11 km3 volume suggest that the unit was dispersed over a much wider area than mapped. The unit is a marker bed throughout its mapped distribution and has potential to be applied over a much broader area as a regional marker bed. The large population and infrastructure proximal to Salak suggest that the unit should be considered in hazards assessments despite its age and the lack of subsequent similar eruptions.en
dc.format.extent19 p.en
dc.relation.ispartofseriesBulletin of Volcanologyen
dc.rights© 2019 The Author(s). This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.en
dc.subjectWest Javaen
dc.titleThe Orange Tuff : a Late Pleistocene tephra-fall deposit emplaced by a VEI 5 silicic Plinian eruption in West Java, Indonesiaen
dc.typeJournal Articleen
dc.contributor.researchEarth Observatory of Singaporeen
dc.description.versionPublished versionen
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