Open AccessPerkembangan Fasies Sedimen Formasi Mamberamo Berumur Miosen Akhir-Pliosen di Cekungan Papua Utara
Author(s) -
David Victor Mamengko,
Yoga B.Sendjadja,
Budi Mulyana,
Hermes Panggabean,
Iyan Haryanto,
Eko Budi Lelono,
Juwita Trivianty Musu,
Panuju Panuju
Publication year - 2019
Publication title -
jurnal geologi dan sumberdaya mineral
Language(s) - English
Resource type - Journals
eISSN - 2549-4759
pISSN - 0853-9634
DOI - 10.33332/jgsm.v20i1.399
Subject(s) - geology , clastic rock , facies , conglomerate , molasse , orogeny , structural basin , quaternary , paleontology , geochemistry , late miocene , geomorphology , foreland basin
North Papua Basin is a fore arc basin located in northern coastal of Papua Island. This basin filled by Middle-Upper Miocene turbidite sediment and overlied by Upper Miocene – Quarternary clastic sediment. Upper Miocene – Quaternary clastic sediments (Mamberamo Formation) composed by interbedding conglomerate, sandstone and shale as molasses deposit. A detailed stratigraphic study was performed to identify facies and its association of the Mamberamo Formation to that give a new perspective on the characteristics and development of facies succession of Lower Mamberamo Formation. Result shows that the Lower Mamberamo Formation consists of three facies: A) cross bedding sandstone (subtidal), B) heterolothic silty shale (intra-tidal), C) carbonaceous shale (supra-tidal) deposited on Late Miocen to Plio-Pleistocene during centra range orogeny (syn-orogeny) as molasses deposits.Keywords: Fore arc basin, North Papua Basin, Mamberamo Formation, molasse deposits.
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