STRATIGRAFI SEISMIK CEKUNGAN ARU, PAPUA BARAT | Zendy

Dida Kusnida | Zendy; Tommy Naibaho | Zendy; Yulinar Firdaus | Zendy; Ali Albab | Zendy

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STRATIGRAFI SEISMIK CEKUNGAN ARU, PAPUA BARAT

Author(s) -

Dida Kusnida,

Tommy Naibaho,

Yulinar Firdaus,

Ali Albab

Publication year - 2019

Publication title -

jurnal geologi kelautan

Language(s) - English

Resource type - Journals

eISSN - 2527-8851

pISSN - 1693-4415

DOI - 10.32693/jgk.v16i2.548

Subject(s) - geology , tectonics , structural basin , geochemistry , geomorphology , paleontology

Studi rekaman seismik multi-kanal dari Cekungan Aru, Papua Barat yang diperoleh dengan menggunakan KR Geomarin III pada tahun 2016, bertujuan untuk menginventarisir dan memetakan aspek-aspek geologi serta untuk studi geo-tektonik dan sejarah geologi. Data seismik menunjukan bahwa urutan sedimen di Cekungan Aru ditandai oleh sedimen pra-ekstensi, sedimen sin-ekstensi, sedimen pos-ekstensi dan sedimen sin-inversi. Pengamatan mikroskopis inti sedimen permukaan dasar laut umumnya menunjukkan adanya fragmen cangkang kerang dan foraminifera, mineral mafik dan residu organik dari lignit berwarna coklat kehitaman. Kata kunci: Cekungan Aru, stratigrafi seismik, sedimen.Study on multi-channel seismic records from the Aru Basin, West Papua obtained using RV Geomarin III in 2016 were aimed to invent and map geological aspects and for geo-tectonic and geological history studies. Seismic data confirmed that sediment sequence in Aru Basin is characterized by pre-extension sediments, syn-extension sediments, syn-extension sediments and syn-inversion sediments. Microscopic observations of the core of surficial sediments generally show the presence of shell fragments and foraminiferas, mafic minerals and organic residuals of blackish-brownish lignite. Key words: Aru Basin, seismic stratigraphy, sediments.

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