The Indonesian Sedimentologists Forum (FOSI) the Sedimentology Commission - the Indonesian Association of Geologists (IAGI)
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Berita Sedimentologi SUMATERA RReevviiieeww oofff ttthhee PPaalllaaeeoozzooiiicc SStttrraatttiiiggrraapphhyy oofff ttthhee LLaannggkkaawwiii IIsslllaannddss,,, MMaalllaayyssiiiaa ppaaggee 55 AA FFiiieellldd TTrriiipp tttoo ttthhee SSyynn---RRiiifffttt PPeetttrroollleeuumm SSyyssttteemmss oofff CCeenntttrraalll SSuummaattteerraa ppaaggee 1188 SStttuuddeennttt aarrtttiiicclllee::: EEccoonnoommiiicc vvss FFrraacctttuurreedd BBaasseemmeennttt::: AA CCaassee SStttuuddyy fffrroomm NNoorrttthh SSuummaatttrraa BBaassiiinn ppaaggee 2211 Published by The Indonesian Sedimentologists Forum (FOSI) The Sedimentology Commission - The Indonesian Association of Geologists (IAGI) Number 27 –August 2013 Page 1 of 31 Berita Sedimentologi SUMATERA Editorial Board Advisory Board Herman Darman Prof. Yahdi Zaim Chief Editor Quaternary Geology Shell International Exploration and Production B.V. Institute of Technology, Bandung P.O. Box 162, 2501 AN, The Hague – The Netherlands Fax: +31-70 377 4978 Prof. R. P. Koesoemadinata E-mail: [email protected] Emeritus Professor Institute of Technology, Bandung Minarwan Deputy Chief Editor Wartono Rahardjo Mubadala Petroleum (Thailand) Ltd. University of Gajah Mada, Yogyakarta, Indonesia st 31 Floor, Shinawatra Tower 3, 1010 Viphavadi Rangsit Rd. Ukat Sukanta Chatuchak, Bangkok 10900, Thailand ENI Indonesia E-mail: [email protected] Mohammad Syaiful Fuad Ahmadin Nasution Exploration Think Tank Indonesia Total E&P Indonesie Jl. Yos Sudarso, Balikpapan 76123 E-mail: [email protected] F. Hasan Sidi Woodside, Perth, Australia Fatrial Bahesti PT. Pertamina E&P NAD-North Sumatra Assets Prof. Dr. Harry Doust Standard Chartered Building 23rd Floor Faculty of Earth and Life Sciences, Vrije Universiteit Jl Prof Dr Satrio No 164, Jakarta 12950 - Indonesia De Boelelaan 1085 E-mail: [email protected] 1081 HV Amsterdam, The Netherlands E-mails: [email protected]; Wayan Heru Young [email protected] University Link coordinator Legian Kaja, Kuta, Bali 80361, Indonesia Dr. J.T. (Han) van Gorsel E-mail: [email protected] 6516 Minola St., HOUSTON, TX 77007, USA www.vangorselslist.com Visitasi Femant E-mail: [email protected] Treasurer Pertamina Hulu Energi Dr. T.J.A. Reijers Kwarnas Building 6th Floor Geo-Training & Travel Jl. Medan Merdeka Timur No.6, Jakarta 10110 Gevelakkers 11, 9465TV Anderen, The Netherlands E-mail: [email protected] E-mail: [email protected] Rahmat Utomo Peter M. Barber PhD Mubadala Petroleum (Thailand) Ltd. Principal Sequence Stratigrapher 31st Floor, Shinawatra Tower 3, 1010 Viphavadi Isis Petroleum Consultants P/L Rangsit Rd. 47 Colin Street, West Perth, Western Australia 6005 Chatuchak, Bangkok 10900, Thailand E-mail: [email protected] E-mail: [email protected] Cover Photograph: The contact of Sawahlunto Formation (dark color at the bottom part) and Sawahtambang Formation (bright color) outcrop near Sawahlunto city – West Sumatera. Taken in June 2012. Photo courtesy of Kirandra Ferari and Peri Raudatul Akmal from IAGI Riau. • 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 27 –August 2013 Page 2 of 31 Berita Sedimentologi SUMATERA Berita Sedimentologi A sedimentological Journal of the Indonesia Sedimentologists Forum (FOSI), a commission of the Indonesian Association of Geologist (IAGI) From the Editor Welcome to Berita Sedimentologi prepared by Andrew Carnell and a Invitations have been sent out to number 27! student article on fractured potential contributors to seek basement in the Malacca Strait by articles for both volumes. We We’re very pleased to deliver Ignatius Primadi. hope to get enough responses for another volume of Berita future publications and in the Sedimentologi to you. In this 27th Lee Chai Peng submitted an meantime, we hope you will edition of Berita Sedimentologi, article on stratigraphy of the benefit from the current edition of we received 5 articles, including 2 Langkawi Island, Malaysia; and a Berita Sedimentologi. See you articles from students to show group of students from again in November. our commitment to engage their Diponegoro University in Central interest in publishing their work Java wrote a short article on Warm Regards, on sedimentology/stratigraphy. depositional environment analysis of Kali Banyumeneng (Demak, Berita Sedimentologi No. 27 Central Java). focuses on Sumatra island however only three articles will We would like to remind you of discuss about Sumatra, while the our plan for near future rest of them are on other areas. publication themes as follow: The articles on Sumatra include a • BS#28 Borneo: to be published short communication on late in November 2013 synrift turbidite systems in the • BS#29 SE Asia Biostratigraphy Minarwan North Sumatra Basin written by to be published in early 2014 Deputy Chief Editor Lawrence (Trey) Meckel, a field trip report to Central Sumatra INSIDE THIS ISSUE Book Review : The SE Asian Getway: History and Tectonic of the Australian- Review of the Palaeozoic Stratigraphy of Student article Asia Collision, editor: Robert Hall et al – T.J.A. Reijers the Langkawi Islands, Malaysia – Lee Chai 5 Economic vs Fractured Basement: A Case 21 56 Peng Study from North Sumatra Basin – Ignatius Primadi Short communication Student article Book Review - Biodiversity, Late Syn-Rift Turbidite Systems in the 15 Depositional Environment Analysis of Kali 26 Biogeography and Nature Conservation 58 North Sumatra Basin – Lawrence D. Meckel, Banyumeneng, Mranggen, Kabupaten in Wallacea and New Guinea (Volume 1), III Demak – Samuel R.N. Simorangkir et al. Edited by D. Telnov, Ph.D. – H. Darman A Field Trip to the Syn-Rift Petroleum System of Central Sumatera – Andrew 18 Carnell et al. Call for paper BS #28 – focus in Borneo to be published in November 2013 Number 27 –August 2013 Page 3 of 31 Berita Sedimentologi SUMATERA About FOSI he forum was founded in FOSI has close international team. IAGI office in Jakarta will 1995 as the Indonesian relations with the Society of help if necessary. TSedimentologists Forum Sedimentary Geology (SEPM) and (FOSI). This organization is a the International Association of commu-nication 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 AUGUST 2013 Number 27 –August 2013 Page 4 of 31 Berita Sedimentologi SUMATERA Review of the Palaeozoic Stratigraphy of the Langkawi Islands, Malaysia Lee Chai Peng University of Malaya, Kuala Lumpur Corresponding Author: [email protected] INTRODUCTION outcrops due to numerous recent development projects on the islands. A helpful compilation of The Langkawi group of 99 islands off the published and unpublished geological researches northwest coast of Malaysian Peninsula is located on Langkawi was compiled by Sarman et al. some 30 km off the coast of Perlis and 112 km (1997). north of Penang. These islands are a paradise for geologists, including some of the best and most The spectacular geological heritage of the islands interesting exposures of Palaeozoic sedimentary heralded the formation of the Langkawi rocks in Malaysia, ranging in age from Cambrian Geoforestpark by the Kedah State Government, to Permian. These consist of both clastics and Malaysia in May 2006 to preserve and display its carbonates, deposited within a range of unique geological features. The Geoforestpark was depositional and palaeoclimatic conditions ranging endorsed by the United Nations Educational, from shallow marine shoreface to turbidites with Scientific and Cultural Organization (UNESCO) dropstones. In addition, these sedimentary rocks under the Global Network of National Geoparks in had been intruded by younger Mesozoic granites June 2007 (Leman et al., 2007). with considerable contact metamorphic effects. REGIONAL GEOLOGICAL SETTING Since the initial publication of the Geological Map of Langkawi and the subsequent Geology and Langkawi is located within the Northwestern Mineral Resources Memoir 17 on the States of Domain of the Western Belt of Peninsular Malaysia Perlis, North Kedah