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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan
Mustafa Hanafi
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Library & Information Science

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THE CHARACTERISTIC OF DEEP SEA FORAMINIFERAL COMMUNITY IN TOMINI BAY, SULAWESI Kresna Tri Dewi; Mustafa Hanafi
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 5 No. 1 (2013): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (881.044 KB) | DOI: 10.29244/jitkt.v5i1.7742

Abstract

A total of 14 sediment samples from Tomini Bay, Sulawesi were used for this study as a component of sediment. The samples were carried out by using a gravity corer at water depth range between 600 and 1400 m. This study was a part of mapping activity on marine geology and geophysics during the first cruise of R/V Geomarin III in 2010. The purpose of this study was to examine the subsurface geology related to the potency of energy and mineral resources. Top core sediment samples were washed through 0.063mm opening sieve and then dried in an oven.  About maximum 300 foraminiferal specimens were picked from every dried washed residue sample to separate them from other particles under a binocular microscope with brush and water. The result showed that most samples were dominated by planktonic foraminifera (>90%), such as Globorotalia menardii, Orbulina universa, Globigerinoides ruber and others as typical of deep sea sediments.  On the other hand, benthic foraminifera was found less than 10% that was represented by Cibicidoides wuellerstorfi, Ceratobulimina pacifica, Pyrgo sp., Bolivinita quadralatera, Uvigerina peregrina, etc. The characteristic of deep sea foraminiferal community of this area may be used for interpreting environmental deposition in the adjacent areas that is useful for petroleum exploration. Keywords: foraminifera, deep sea, Tomini Bay, Sulawesi.
Karakteristik Kawasan Pesisir Pantai Cilamaya (Teluk Blanakan dan Teluk Ciasem), Kabupaten Subang, Propinsi Jawa Barat Ipranta, Ipranta; Mawardi, Soni; Hanafi, Mustafa; Christiana, Immaculata
JURNAL GEOLOGI KELAUTAN Vol 19, No 1 (2021)
Publisher : Pusat Penelitian dan Pengembangan Geologi Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32693/jgk.19.1.2021.667

Abstract

Kawasan pesisir utara Pulau Jawa merupakan kawasan yang sering mengalami perubahan akibat proses hidrometeorologi termasuk pesisir Cilamaya. Paling tidak ada 4 sungai yang mengalir bermuara antara lain Citarum (lama), Blanakan, Cilamaya dan Ciasem. Secara geomorfologi relatif datar yang tersusun dari proses proses fluvial dan proses asal laut sebagai endapan dataran banjir, endapan alur sungai, endapan estuari dan endapan laut. Endapan limpah banjir tersusun oleh lempung lanauan dan lempung kadang dijumpai adanya kerakal dan brangkal, dimanfaatkan oleh masyarakat sebagai Sawah, tanaman padi. Pasir, karekal dan berangkal merupakan material penyusun endapan alur sungai. Estuari terdiri dari material organik dan lempung. Daerah ini tertutup oleh hutan mangrove dan tambak. Endapan laut didominasi endapan yang berukuran halus lempung dan pasir (halus – kasar) dengan dibeberapa tempat kadang dijumpai pecahan cangkang.Kata kunci: Cilamaya, Kawasan Pesisir, estuariCoastal area in the northern of Java island is part of the always changes caused by hidrometeorogy aspect include the Cilamaya costal area. At least there are four river flow are (old) Citarum, Blanakan, Cilamaya and Ci Asem river. Geomorphologically the relief ralatively flat from the fluvial and marine proccesses, as floodplain, river (channel), estuaries (wet land), marine deposits. The floodplain deposits consists of silty clay and clay some time with pebble, use for the paddy field and some urban area. Sand, pebble and coble are from the river (channel). Estuary consists of organic material and clay, very weak. In the estuary cover by mangrove forest and fish pond. The marine deposits dominantly clay and sand (fine to coarse) with some place found broken shell. The hazards relation with the condition should be mitigate are subsidance, flood from the river and tide (rob).Keyword: Cilamaya, coastal area,  estuaries
Co-Authors Christiana, Immaculata Ipranta Ipranta, Ipranta Kresna Tri Dewi Mawardi, Soni