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Title: The Celebes Molasse: a revised Neogene stratigraphy for Sulawesi, Indonesia
Authors: Nugraha, Abang Mansyursyah Surya
Hall, Robert
BouDagher-Fadel, Marcelle
Keywords: Science::Geology
Issue Date: 2022
Source: Nugraha, A. M. S., Hall, R. & BouDagher-Fadel, M. (2022). The Celebes Molasse: a revised Neogene stratigraphy for Sulawesi, Indonesia. Journal of Asian Earth Sciences, 228, 105140-.
Journal: Journal of Asian Earth Sciences 
Abstract: Over the past century, a wide variety of poorly dated sediments that unconformably overlie pre-Neogene rocks in Sulawesi have been assigned to the Celebes Molasse and interpreted as post-orogenic rocks deposited after a major collision. New data from fieldwork and laboratory studies, including mineralogical, palaeontological and zircon geochronological analyses, provide the basis for a new Neogene stratigraphy and show that sediments assigned to the Celebes Molasse have significant variations in age, environment of deposition, composition and sedimentation history. Identified unconformities in the (1) Early Miocene (c. 23 Ma), (2) Middle Miocene (c. 15 Ma), (3) Mio-Pliocene (c. 6–5.3 Ma), and (4 and 5) Pleistocene (c. 1.8 and 0.1 Ma) separate Lower Miocene, Middle to Upper Miocene, Pliocene, Pleistocene and Holocene mega-sequences. These mega-sequences resulted from Early Miocene collision followed by extension, driven by subduction rollback, causing both uplift and subsidence, in contrast to previous interpretations of multiple collisions.
ISSN: 1367-9120
DOI: 10.1016/j.jseaes.2022.105140
Research Centres: Earth Observatory of Singapore 
Rights: © 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
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