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Berita Sedimentologi MARINE GEOLOGY OF INDONESIA PPllliiioo---PPllleeiiisstttoocceennee SSeeiiissmmiiicc SStttrraatttiiiggrraapphhyy oofff ttthhee JJaavvaa SSeeaa bbeetttwweeeenn BBaawweeaann IIsslllaanndd aanndd EEaassttt JJaavvaa ppaaggee 55 FFrroonntttiiieerr EExxppllloorraatttiiioonn UUssiiinngg aann IInnttteeggrraattteedd Marine Expeditions in Indonesia AApppprrooaacchh oofff SSeeaafffllloooorr Mariine Expediittiions iin Indonesiia during the Colonial Years MMuullltttiiibbeeaamm,,, DDrroopp duriing tthe Colloniiall Years page 30 CCoorree aanndd SSeeiiissmmiiicc page 30 IInnttteerrpprreetttaatttiiioonn –– AA SStttuuddyy CCaassee fffrroomm NNoorrttthh BBaannggggaaiii SSuulllaa ppaaggee 2277 Published by The Indonesian Sedimentologists Forum (FOSI) The Sedimentology Commission - The Indonesian Association of Geologists (IAGI) Number 32 – April 2015 Page 1 of 34 Berita Sedimentologi MARINE GEOLOGY OF INDONESIA Editorial Board Advisory Board Minarwan Prof. Yahdi Zaim Chief Editor Quaternary Geology Bangkok, Thailand Institute of Technology, Bandung E-mail: [email protected] Prof. R. P. Koesoemadinata Herman Darman Emeritus Professor Deputy Chief Editor Institute of Technology, Bandung Shell International EP Kuala Lumpur, Malaysia Ir. Wartono Rahardjo E-mail: [email protected] University of Gajah Mada, Yogyakarta, Indonesia Fatrial Bahesti Dr. Ukat Sukanta PT. Pertamina E&P ENI Indonesia NAD-North Sumatra Assets rd Standard Chartered Building 23 Floor Mohammad Syaiful Jl Prof Dr Satrio No 164, Jakarta 12950 - Indonesia Exploration Think Tank Indonesia E-mail: [email protected] F. Hasan Sidi Wayan Heru Young Woodside, Perth, Australia University Link coordinator Legian Kaja, Kuta, Bali 80361, Indonesia E-mail: [email protected] Prof. Dr. Harry Doust Faculty of Earth and Life Sciences, Vrije Universiteit Visitasi Femant De Boelelaan 1085 1081 HV Amsterdam, The Netherlands Treasurer E-mails: [email protected]; Pertamina Hulu Energi [email protected] Kwarnas Building 6th Floor Jl. Medan Merdeka Timur No.6, Jakarta 10110 E-mail: [email protected] Dr. J.T. (Han) van Gorsel 6516 Minola St., HOUSTON, TX 77007, USA Rahmat Utomo www.vangorselslist.com E-mail: [email protected] Bangkok, Thailand E-mail: [email protected] Dr. T.J.A. Reijers Farid Ferdian Geo-Training & Travel Gevelakkers 11, 9465TV Anderen, The Netherlands Saka Energi Indonesia E-mail: [email protected] Jakarta, Indonesia E-mail: [email protected] Dr. Andy Wight formerly IIAPCO-Maxus-Repsol, latterly consultant Guest Editors for Mitra Energy Ltd, KL E-mail: [email protected] Dr. Susilohadi Pusat Penelitian dan Pengembangan Geologi Kelautan, (Marine Geological Institute) Bandung, Indonesia Dr. Udrekh Al Hanif BPPT (Agency for the Assessment and Application of Technology) Jakarta, Indonesia Cover Photograph: A 3D model of Indonesian seafloor, taken from the proceedings of a scientific meeting to commemorate the 10th anniversary of the French-Indonesian cooperation in oceanography (1993). • Published 3 times a year by the Indonesian Sedimentologists Forum (Forum Sedimentologiwan Indonesia, FOSI), a commission of the Indonesian Association of Geologists (Ikatan Ahli Geologi Indonesia, IAGI). • Cover topics related to sedimentary geology, includes their depositional processes, deformation, minerals, basin fill, etc. Number 32 – April 2015 Page 2 of 34 Berita Sedimentologi MARINE GEOLOGY OF INDONESIA Berita Sedimentologi A sedimentological Journal of the Indonesia Sedimentologists Forum (FOSI), a commission of the Indonesian Association of Geologist (IAGI) From the Editor Dear readers, particular theme. In this issue, we therefore he knows the geology of present you 2 full articles on the region pretty well. He replaces Welcome to the first volume of seismic stratigraphy and heat Dr. Peter Barber, who has been Berita Sedimentologi in 2015! flow estimation from bottom very helpful to FOSI in the past. simulating reflectors of gas On behalf of FOSI, I would like to Berita Sedimentologi publications hydrates; an extended abstract on express our gratitude and thanks in 2015 are dedicated to topics integrated multibeam, drop core to both Drs. Andy Wight and related to Marine Geology of and seismic interpretation of Peter Barber. Indonesia and are supported by North Banggai-Sula seafloor and Dr. Susilohadi of Marine a short article on marine We continue to seek high quality Geological Institute (Pusat expeditions in Indonesia during articles to be included in Berita Penelitian dan Pengembangan the Colonial years. Sedimentologi, so please contact Geologi Kelautan) and Dr. Udrekh one of the editors if you are Al Hanif of Agency for Assessment We also welcome Dr. Andy Wight interested to contribute to our and Application of Technology who recently agreed to become society. In the meantime, we hope (Badan Pengkajian dan one of our International you enjoy reading this volume. Penerapan Teknologi) as guest Reviewers. Dr. Wight is a highly editors. This volume, Berita experienced Petroleum Geologist Chief Editor Sedimentologi No. 32, will be the who has spent most of his Minarwan first of 3 volumes on the professional career in SE Asia, Regards, Minarwan Chief Editor INSIDE THIS ISSUE Book Review : The SE Asian : History and Plio-Pleistocene Seismic Stratigraphy of Tectonic of the Australian-Asia the Java Sea between Bawean Island and 5 Collision, editor: Robert Hall et J.A. 56 East Java – S. Susilohadi and T.A. Soeprapto Reijers Merits and Shortcomings of Heat Flow Book Review - Biodiversity, Estimates from Bottom Simulating Biogeography and Nature Conservation 17 Reflectors – Minarwan and R. Utomo in Wallacea and New Guinea (Volume 1), 58 Edited by D. Telnov, Ph.D. – H. Darman Frontier Exploration Using an Integrated Approach of Seafloor Multibeam, Drop Core and Seismic Interpretation – A Study 27 Case from North Banggai Sula – F. Ferdian Marine Expeditions in Indonesia during the Colonial Years – H. Darman 30 Call for paper BS #33 – to be published in August 2015 Number 32 – April 2015 Page 3 of 34 Berita Sedimentologi MARINE GEOLOGY OF INDONESIA About FOSI he forum was founded in FOSI has close international team. IAGI office in Jakarta will T 1995 as the Indonesian relations with the Society of help if necessary. Sedimentologists Forum Sedimentary Geology (SEPM) and (FOSI). This organization is a the International Association of communication and discussion Sedimentologists (IAS). forum for geologists, especially for Fellowship is open to those those dealing with sedimentology holding a recognized degree in and sedimentary geology in geology or a cognate subject and Indonesia. non-graduates who have at least two years relevant experience. The forum was accepted as the sedimentological commission of FOSI has organized 2 the Indonesian Association of international conferences in 1999 The official website of FOSI is: Geologists (IAGI) in 1996. About and 2001, attended by more than 300 members were registered in 150 inter-national participants. 1999, including industrial and http://www.iagi.or.id/fosi/ academic fellows, as well as Most of FOSI administrative work students. will be handled by the editorial FOSI Membership Any person who has a background in geoscience and/or is engaged in the practising or teaching of geoscience or its related business may apply for general membership. As the organization has just been restarted, we use LinkedIn (www.linkedin.com) as the main data base platform. We realize that it is not the ideal solution, and we may look for other alternative in the near future. Having said that, for the current situation, LinkedIn is fit for purpose. International members and students are welcome to join the organization. FOSI Group Member as of APRIL 2015 Number 32 – April 2015 Page 4 of 34 Berita Sedimentologi MARINE GEOLOGY OF INDONESIA Plio-Pleistocene Seismic Stratigraphy of the Java Sea between Bawean Island and East Java Susilohadi Susilohadi and Tjoek Azis Soeprapto Pusat Penelitian dan Pengembangan Geologi Kelautan, (Marine Geological Institute), Bandung, Indonesia Corresponding author: Jalan Dr. Junjunan 236, Bandung-40174, Indonesia; Tel.:+62-22-603-2020; Fax:+62-22-601-7887; E-mail address: [email protected] (S.Susilohadi) ABSTRACT The southeast Java Sea forms a submerged part of the Sunda Shelf and lies on a relatively stable continental shelf, which reached its final form during the Quaternary. Marine geological investigations in this area have mostly been carried out as part of regional studies on the Sunda Shelf. Detailed studies, particularly for younger sequences, are lacking and, as a result, the neo-tectonics and response of the shelf area to extreme sea level fluctuations during Plio-Quaternary times are poorly known. A set of high resolution reflection seismic profiles totalling some 3750 line km has been studied. All data were acquired by the Marine Geological Institute of Indonesia, which ran the survey in the southeast Java Sea in 1989-1990. The data show that the Late Tertiary sedimentation in the study area partly occurred in half graben basins, mostly bounded by northeastward trending faults which may be related to the regional suture belts running from central Java to south Kalimantan. Towards Pliocene time, the sedimentation occurred in east-trending synclinal basins, which indicate the dominance of a northward tectonic compressional stress. This continued until the Early Pleistocene, as indicated by some local thickening of the Early Pleistocene deposits. Since then, further