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“Fractured Basement” Play in the Sabah Basin? – the Crocker and Kudat Formations As Hydrocarbon Reservoirs and Their Risk Factors Mazlan Madon1,*, Franz L
Bulletin of the Geological Society of Malaysia, Volume 69, May 2020, pp. 157 - 171 DOI: https://doi.org/10.7186/bgsm69202014 “Fractured basement” play in the Sabah Basin? – the Crocker and Kudat formations as hydrocarbon reservoirs and their risk factors Mazlan Madon1,*, Franz L. Kessler2, John Jong3, Mohd Khairil Azrafy Amin4 1 Advisor, Malaysian Continental Shelf Project, National Security Council, Malaysia 2 Goldbach Geoconsultants O&G and Lithium Exploration, Germany 3 A26-05, One Residences, 6 Jalan Satu, Chan Sow Lin, KL, Malaysia 4 Malaysia Petroleum Management, PETRONAS, Malaysia * Corresponding author email address: [email protected] Abstract: Exploration activities in the Sabah Basin, offshore western Sabah, had increased tremendously since the discovery of oil and gas fields in the deepwater area during the early 2000s. However, the discovery rates in the shelfal area have decreased over the years, indicating that the Inboard Belt of the Sabah Basin may be approaching exploration maturity. Thus, investigation of new play concepts is needed to spur new exploration activity on the Sabah shelf. The sedimentary formations below the Deep Regional Unconformity in the Sabah Basin are generally considered part of the economic basement which is seismically opaque in seismic sections. Stratigraphically, they are assigned to the offshore Sabah “Stages” I, II, and III which are believed to be the lateral equivalents of the pre-Middle Miocene clastic formations outcropping in western Sabah, such as the Crocker and Kudat formations and some surface hydrocarbon seeps have been reported from Klias and Kudat peninsulas. A number of wells in the inboard area have found hydrocarbons, indicating that these rocks are viable drilling targets if the charge and trapping mechanisms are properly understood. -
Mantle Structure and Tectonic History of SE Asia
Nature and Demise of the Proto-South China Sea ROBERT HALL, H. TIM BREITFELD SE Asia Research Group, Department of Earth Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, United Kingdom Abstract: The term Proto-South China Sea has been used in a number of different ways. It was originally introduced to describe oceanic crust that formerly occupied the region north of Borneo where the modern South China Sea is situated. This oceanic crust was inferred to have been Mesozoic, and to have been eliminated by subduction beneath Borneo. Subduction was interpreted to have begun in Early Cenozoic and terminated in the Miocene. Subsequently the term was also used for inferred oceanic crust, now disappeared, of quite different age, notably that interpreted to have been subducted during the Late Cretaceous below Sarawak. More recently, some authors have considered that southeast-directed subduction continued until much later in the Neogene than originally proposed, based on the supposition that the NW Borneo Trough and Palawan Trough are, or were recently, sites of subduction. Others have challenged the existence of the Proto-South China Sea completely, or suggested it was much smaller than envisaged when the term was introduced. We review the different usage of the term and the evidence for subduction, particularly under Sabah. We suggest that the term Proto-South China Sea should be used only for the slab subducted beneath Sabah and Cagayan between the Eocene and Early Miocene. Oceanic crust subducted during earlier episodes of subduction in other areas should be named differently and we use the term Paleo- Pacific Ocean for lithosphere subducted under Borneo in the Cretaceous. -
A Gravity High in Darvel Bay
Ceol. Soc. MaLaYJia, BulLetill 59, July 1996,. pp. 1lJ-122 A gravity high in Darvel Bay PATRICK J.e. RYALL! AND DWAYNE BEATTIE2 1 Department of Geology Dalhousie University Halifax, Nova Scotia Canada B3H 3J5 2Geoterrex Ltd. 2060 Walkley Road Ottawa, Ontario Canada K1 G 3P5 Abstract: A gravity survey was carried out along the coastlines of Darvel Bay and many of the islands (e.g. Sakar, Tabauwan, Silumpat) in the Bay. In addition stations were located along the road from Kunak to Lahad Datu. The resulting Bouguer anomaly map shows a broad gravity high of at least 60 mgal which strikes west northwest with its maximum on the southern coast of Pulau Sakar. The anomaly narrows and decreases where it comes ashore and may continue along the Silam-Beeston Complex. This large positive anomaly suggests that there is an extensive ultramafic body beneath Darvel Bay. The gravity anomaly can best be modelled as a 3 to 5 km thick slab of ultramafic rock under the Bay with amphibolites on its northern and southern edges dipping away from the Bay. This model is consistent with a folded structure which brings upper mantle rocks to the surface. It is unlikely that there is a significant thickness of Chert-Spilite Formation beneath Darvel Bay, although the gravity data w.ould permit a thickness of up to a few hundred metres. INTRODUCTION Hutchison (1968,1975) considers the ophiolitic rocks of Darvel Bay as part of a strongly arcuate Borneo line which runs from the Sulu Archipelago in the northeast, through Darvel Bay and northwestern The island of Borneo is located in a complex Sabah and along Palawan (Fig. -
Geological Mapping of Sabah, Malaysia, Using Airborne Gravity Survey
Downloaded from orbit.dtu.dk on: Oct 05, 2021 Geological Mapping of Sabah, Malaysia, Using Airborne Gravity Survey Fauzi Nordin, Ahmad; Jamil, Hassan; Noor Isa, Mohd; Mohamed, Azhari; Hj. Tahir, Sanudin; Musta, Baba ; Forsberg, René; Olesen, Arne Vestergaard; Nielsen, Jens Emil; Majid A. Kadir, Abd Total number of authors: 13 Published in: Borneo Science, The Journal of Science and Technology Publication date: 2016 Document Version Publisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Fauzi Nordin, A., Jamil, H., Noor Isa, M., Mohamed, A., Hj. Tahir, S., Musta, B., Forsberg, R., Olesen, A. V., Nielsen, J. E., Majid A. Kadir, A., Fahmi Abd Majid, A., Talib, K., & Aman Sulaiman, S. (2016). Geological Mapping of Sabah, Malaysia, Using Airborne Gravity Survey. Borneo Science, The Journal of Science and Technology, 37(2), 14-27. General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research. You may not further distribute the material or use it for any profit-making activity or commercial gain You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. -
Occurrences of Red Tide in Brunei Darussalam and Methods of Monitoring and Surveillance
Occurrences of Red Tide in Brunei Darussalam and Methods of Monitoring and Surveillance Matdanan Haji Jaafar and Selvanathan Subramaniam Fisheries Department, Brunei Darussalam Introduction Red Tide Occurrence in 1976 Negara Brunei Darussalam is situated in the On 11 March 1976, Fisheries Department northwest of Borneo Island and lies between biologists were conducting unrelated work at sea Sarawak to the southwest and Sabah to the when they noticed an extensive reddish-brown northeast. It lies between latitudes 4°N and 5° 05’ N discolouration 4 nautical miles north-northeast of and longitudes 114° 04’E and 115° 22’E. Muara Port. This was suspected as being a To the northeast of Brunei Darussalam, lies planktonic bloom and samples were collected. Brunei Bay and Brunei River estuary. These are Subsequent microscopic examination of the fringed by mangroves and form the basis of an samples showed the presence of heavy important prawn and seasonal Rastrelliger fishery. concentrations of a marine dinoflagellate that was The deep channel entering the bay between later identified as Pyrodinium bahamense Plate Pulau Muara Besar and Tanjong Trusan and the (1906). Although red tide was unknown in Brunei at dredged areas in the Muara Port area are relatively that time, its potentially toxic nature when deep but generally the water in the inner bay area concentrated was recognized and the Director of varies between 2 and 6 m. Fine sands, silts, and Medical Services was advised of the situation. A muds with a high organic content comprise the statement warning the public not to eat shellfish was sediment. Salinity in the bay varies from 15—28 ppt, broadcast over the radio and television the same but this fluctuates depending on tidal activity and evening. -
Incision of Rivers in Pleistocene Gravel and Conglomeratic Terraces: Further Circumstantial Evidence for the Uplift of Borneo During the Neogene and Quaternary
Bulletin of the Geological Society of Malaysia, Volume 61, December 2015, pp. 49 – 57 Incision of rivers in Pleistocene gravel and conglomeratic terraces: Further circumstantial evidence for the uplift of Borneo during the Neogene and Quaternary FRANZ L. KESSLER1* & JOHN JONG2 1Independent Geoscience, Oil and Gas Consultant 2JX Nippon Oil and Gas Exploration (Deepwater Sabah) Limited Level 51, Menara 3 PETRONAS, Persiaran KLCC, Kuala Lumpur City Centre, 50088 Kuala Lumpur *Corresponding author: [email protected] Abstract: Incised Pleistocene gravel beds and conglomerates are a common feature of the Baram, Limbang and Temburong drainage systems in NW Sarawak and Brunei. Incision values vary from 9 to 76 m, a likely result of strong temporary precipitation, in combination with ongoing uplift. Conglomerates and gravels are monomictic, almost exclusively formed by the Lower Miocene Meligan sandstone, and deposited in nested fluvial terraces. The described pattern differs from coastal terraces of the Miri area; the latter do not contain conglomerates other than locally-derived and recycled quartz clasts. The available age and uplift data, when plotted log-normal, suggest that the mountainous central Borneo uplift was continuous of some 6-7 mm a-1, whilst low-lying coastal wetland areas in Brunei and Sarawak may only have seen a very minor uplift in the order of 0.8 mm a-1. The uplift may be ongoing at the present day. Keywords: NW Borneo, Neogene, Quaternary, terraces, uplift, Sarawak, Brunei, geomorphology INTRODUCTION research poses the question, to which extent climate may This paper is in many ways a compilation, given there have prompted the rise the Borneo hinterlands, as well as is a need to align older data with modern results, and mountainous regions of Sulawesi, New Guinea and other from different branches of science. -
Download Programme Book
Contents iv Members of the 18th Council & Organising Committee of 36th Scientifi c Conference v Welcome Message from President of Nutrition Society of Malaysia vii Acknowledgements 1 Conference Scientifi c Programme 2 Conference Information 11 NSM Prizes 2021 • Postgraduate and Undergraduate Prizes • Publication Prizes • Young Researchers’ Symposium Prizes • Poster Competition Prizes 19 NSM Publication Prizes 2022 Announcements 26 List of Scientifi c Posters 36 Messages from Sponsors 43 43 57 72 Conference Secretariat 12-A, Jalan PJS 8/4, Mentari Plaza, Bandar Sunway, 46150 Petaling Jaya, Selangor. Tel: 03-5632 3301 Fax: 03-5638 9909 Email: [email protected] iii Members of the 18th Council & Organising Committee of 36th Scientifi c Conference President Dr Tee E Siong Vice-President Assoc Prof Dr Mahenderan Appukutty Honorary Secretary Assoc Prof Dr Chin Yit Siew Honorary Treasurer Dr Roseline Yap Wai Kuan Assistant Honorary Secretary Dr Wong Jyh Eiin Council Members Prof Dr Norimah A Karim Assoc Prof Dr Gan Wan Ying Asst Prof Dr Satvinder Kaur Nachatar Singh Dr Yasmin Ooi Beng Houi iv President’s Welcome Tee E Siong, PhD President, Message Nutrition Society of Malaysia [email protected] On behalf of the Organising Committee, including government agencies, academic I welcome everyone to the 36th Annual institutions, professional bodies and private Scientifi c Conference of Nutrition Society sectors, as well as the public to collaborate of Malaysia (NSM). Unfortunately with the together to systematically implement the current on-going COVID-19 pandemic, we identifi ed strategies and action plans. It is have to bring you this annual scientifi c even more crucial for all stakeholders to conference via virtual platform again. -
25 the Land Capability Classification of Sabah Volume 2 the Sandakan Residency
25 The land capability classification of Sabah Volume 2 The Sandakan Residency Q&ffls) (Kteg®QflK§@© EAï98©8CöXjCb Ö^!ÖfiCfDÖ©ÖGr^7 CsX? (§XÄH7©©©© Cß>SFMCS0®E«XÄJD(SCn3ß Scanned from original by ISRIC - World Soil Information, as i(_su /Vorld Data Centre for Soils. The purpose is to make a safe jepository for endangered documents and to make the accrued nformation available for consultation, following Fair Use Guidelines. Every effort is taken to respect Copyright of the naterials within the archives where the identification of the Copyright holder is clear and, where feasible, to contact the >riginators. For questions please contact soil.isricOwur.nl ndicating the item reference number concerned. The land capability classification of Sabah Volume 2 The Sandakan Residency 1M 5>5 Land Resources Division The land capability classification of Sabah Volume 2 The Sandakan Residency P Thomas, F K C Lo and A J Hepburn Land Resource Study 25 Land Resources Division, Ministry of Overseas Development Tolworth Tower, Surbiton, Surrey, England KT6 7DY 1976 in THE LAND RESOURCES DIVISION The Land Resources Division of the Ministry of Overseas Development assists developing countries in mapping, investigating and assessing land resources, and makes recommendations on the use of these resources for the development of agriculture, livestock husbandry and forestry; it also gives advice on related subjects to overseas governments and organisations, makes scientific personnel available for appointment abroad and provides lectures and training courses in the basic techniques of resource appraisal. The Division works in close co-operation with government departments, research institutes, universities and international organisations concerned with land resource assessment and development planning. -
Brunei Darussalam's Preliminary Submission Concerning the Outer
Brunei Darussalam’s Preliminary Submission concerning the Outer Limits of its Continental Shelf Brunei Darussalam’s Preliminary Submission to the Secretary-General concerning the Outer Limits of its Continental Shelf 1. Introduction (a) Relevant Provisions of UNCLOS 1. Brunei Darussalam (‘Brunei’) is a State party to the 1982 United Nations Convention on the Law of the Sea (‘UNCLOS’), which it signed on 5 December 1984 and ratified on 5 November 1996. 2. Article 77, paragraphs 1 – 3, of UNCLOS provide that: “1. The coastal State exercises over the continental shelf sovereign rights for the purpose of exploring it and exploiting its natural resources. 2. The rights referred to in paragraph 1 are exclusive in the sense that if the coastal State does not explore the continental shelf or exploit its natural resources, no one may undertake these activities without the express consent of the coastal State. 3. The rights of the coastal State over the continental shelf do not depend on occupation, effective or notional, or on any express proclamation.” 3. Article 76, paragraph 1, of UNCLOS establishes the right of coastal States to determine the outer limits of the continental shelf. This provision states that: “The continental shelf of a coastal State comprises the sea-bed and subsoil of the submarine areas that extend beyond its territorial sea throughout the natural prolongation of its land territory to the outer edge of the continental margin, or to a distance of 200 nautical miles from the baselines from which the breadth of the territorial sea is measured where the outer edge of the continental margin does not extend up to that distance.” Article 76, paragraph 8, of UNCLOS further states that: “Information on the limits of the continental shelf beyond 200 nautical miles from the baselines from which the breadth of the territorial sea is measured shall be submitted by the coastal State to the Commission on the Limits of the Continental Shelf set up under Annex II on the basis of equitable geographic representation. -
Maritime Briefing
International Boundaries Research Unit MARITIME BRIEFING Volume 1 Number 3 The Brunei-Malaysia Dispute over Territorial and Maritime Claims in International Law Renate Haller-Trost Maritime Briefing Volume 1 Number 3 ISBN 1-897643-07-1 1994 The Brunei-Malaysia Dispute over Territorial and Maritime Claims in International Law by R. Haller-Trost Edited by Clive Schofield and Martin Pratt International Boundaries Research Unit Department of Geography University of Durham South Road Durham DH1 3LE UK Tel: UK + 44 (0) 191 334 1961 Fax: UK +44 (0) 191 334 1962 e-mail: [email protected] www: http://www-ibru.dur.ac.uk The Author R. Haller-Trost holds a B.A. (Hons) in Anthropology, Southeast Asian Studies and Law from the University of Kent at Canterbury, UK. She is presently writing a PhD in International Law at Monash University, Melbourne, Australia. Her research interests are mainly the territorial and maritime disputes of Southeast Asia, a topic on which she has published various papers (e.g the Spratly Islands, Sabah, Brunei). NB: The opinions and comments contained herein are those of the author and are not to be construed as those of IBRU. Contents 1. Introduction 1 2. Brunei's Maritime Maps 2 3. Brunei's Territorial Land Claims 5 3.1 UK/Brunei Treaties after 1888 6 3.2 The Origin of the Claims 9 3.2.1 The Limbang and Rangau 11 3.2.2 The Trusan and Lawas 16 3.2.3 The Transfer of Sarawak in 1946 and 1963 19 3.3 Legal Assessment 20 3.3.1 Change of Sovereignty and Tenure 22 3.3.2 Alienation of Territory 23 3.3.3 Protectorates 24 3.3.4 Geographical Extent of the Limbang 26 3.3.5 Annexation 27 3.3.6 Uti Possidetis Iuris 31 3.3.7 Brunei Bay 33 4. -
INDIGENOUS GROUPS of SABAH: an Annotated Bibliography of Linguistic and Anthropological Sources
INDIGENOUS GROUPS OF SABAH: An Annotated Bibliography of Linguistic and Anthropological Sources Part 1: Authors Compiled by Hans J. B. Combrink, Craig Soderberg, Michael E. Boutin, and Alanna Y. Boutin SIL International SIL e-Books 7 ©2008 SIL International Library of Congress Catalog Number: 2008932444 ISBN: 978-155671-218-0 Fair Use Policy Books published in the SIL e-Books series are intended for scholarly research and educational use. You may make copies of these publications for research or instructional purposes (under fair use guidelines) free of charge and without further permission. Republication or commercial use of SILEB or the documents contained therein is expressly prohibited without the written consent of the copyright holder(s). Series Editor Mary Ruth Wise Volume Editor Mae Zook Compositor Mae Zook The 1st edition was published in 1984 as the Sabah Museum Monograph, No. 1. nd The 2 edition was published in 1986 as the Sabah Museum Monograph, No. 1, Part 2. The revised and updated edition was published in 2006 in two volumes by the Malaysia Branch of SIL International in cooperation with the Govt. of the State of Sabah, Malaysia. This 2008 edition is published by SIL International in single column format that preserves the pagination of the 2006 print edition as much as possible. Printed copies of Indigenous groups of Sabah: An annotated bibliography of linguistic and anthropological sources ©2006, ISSN 1511-6964 may be obtained from The Sabah Museum Handicraft Shop Main Building Sabah Museum Complex, Kota Kinabalu, Sabah, -
Geological Heritage Features of Tawau Volcanic Sequence, Sabah
Bulletin of the Geological Society of Malaysia 56 (2010) 79 – 85 Geological heritage features of Tawau volcanic sequence, Sabah Sanudin Tahir, BaBa MuSTa & iSMail aBd rahiM Geology Programme, School of Science and Technology Universiti Malaysia Sabah, 88999 Kota Kinabalu, Sabah Abstract— Semporna Peninsula area was built up by thick Tertiary sequence of volcanic flows and volcaniclastic rocks. Early Cretaceous tholeiite basalt is the oldest sequence of volcanic rocks interpreted to have formed as part of a wide spread submarine volcano or volcanic complex within an MORB characterized by rapid volcanism. Miocene to Quaternary volcanisms from volcanic arcs contributed sequences of lava flows and pyroclastic rocks of dacitic, andesitic and basaltic rock types forming the major mountain chains of southeast Sabah. This Neogene volcanic sequence is dominated by low to high K-calc alkaline andesitic to dacitic volcanic rocks similar to modern island arc type. The subaerial of the latest lava flows of the region indicates volcanism consistent with tholeiitic basalt type. It has been accepted that during the Cenozoic, Sabah has been subjected to series of major tectonic regimes. A number of deformation phases have been determined include: Middle Eocene, Middle Miocene and Plio-Pleistocene phases of crustal movements of this region. The area appeared, therefore, to have been subjected to compressional tectonic regime throughout much of the late Cenozoic. However, the structural and sedimentological expression of these tectonic regimes varies considerably. It is suggested here that compressional episodes were interspersed with periods of active transtensional basin formation and that Late Miocene extension of the eastern part of Sabah which was related to compressional forces.