Number 36 10/2016

(1)

Page 1 of 67 Berita Sedimentologi

Number 36 – October 2016

Published by

The Indonesian Sedimentologists Forum (FOSI)

The Sedimentology Commission - The Indonesian Association of Geologists (IAGI)

Number 36

10/2016

(2)

Editorial Board Minarwan

Chief Editor

Bangkok, Thailand

E-mail: [email protected] Herman Darman

Deputy Chief Editor PT. Eksindo Pratama Jakarta, Indonesia

E-mail: [email protected] Fatrial Bahesti

IAGI Link Coordinator & Reviewer

PT. Pertamina E&P, NAD-North Sumatra Assets Standard Chartered Building 23^rd Floor

Jl. Prof Dr Satrio No 164, Jakarta 12950 - Indonesia E-mail: [email protected]

Mohamad Amin Ahlun Nazar University Link Coordinator Jakarta, Indonesia

E-mail: [email protected] Indra Gunawan

University Link Coordinator & Reviewer Program Studi Teknik Geologi

Institut Teknologi Bandung Jl. Ganesha 10 Bandung Email: [email protected] Rina Rudd

Reviewer Husky Energy Jakarta, Indonesia

E-mail: [email protected] Visitasi Femant

Treasurer, Membership & Social Media Coordinator Pertamina Hulu Energi, Kwarnas Building 6^th Floor Jl. Medan Merdeka Timur No.6, Jakarta 10110 E-mail: [email protected]

Sarah Sausan

Halliburton Landmark

Kawasan Industri dan Pergudangan Taman Tekno Blok D1/1 Sektor XI BSD City, Tangerang Selatan E-mail: [email protected]

Rahmat Utomo Bangkok, Thailand

E-mail: [email protected]

Advisory Board Prof. Yahdi Zaim Quaternary Geology

Institute of Technology, Bandung Prof. R. P. Koesoemadinata

Emeritus Professor

Institute of Technology, Bandung Wartono Rahardjo

University of Gajah Mada, Yogyakarta, Indonesia Ukat Sukanta

ENI Indonesia Mohammad Syaiful

Exploration Think Tank Indonesia F. Hasan Sidi

Woodside, Perth, Australia Prof. Dr. Harry Doust

Faculty of Earth and Life Sciences, Vrije Universiteit De Boelelaan 1085

1081 HV Amsterdam, The Netherlands E-mails: [email protected];

[email protected] Dr. J.T. (Han) van Gorsel

6516 Minola St., HOUSTON, TX 77007, USA www.vangorselslist.com

E-mail: [email protected] Dr. T.J.A. Reijers

Geo-Training & Travel

Gevelakkers 11, 9465TV Anderen, The Netherlands E-mail: [email protected]

Dr. Andy Wight

formerly IIAPCO-Maxus-Repsol, latterly consultant for Mitra Energy Ltd, KL

E-mail: [email protected]

• 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.

Cover Photograph:

Eocene - Brani Formation (Fletcher and Yarmanto, 1993), interpreted as middle-proximal facies of alluvial fan.

Photo courtesy of Enry Horas Sihombing (2014).

(3)

Dear Readers,

We are very pleased to deliver another volume of Berita Sedimentologi to your hands. This volume is Berita Sedimentologi No. 36, with a main theme on

“Palaeogene of the Eastern Margin of Sundaland (Part 2)”.

This issue includes three research articles written by young geoscientists and one discussion

& reply initiated by late Prof. H.D.

Tjia. The research articles are from Lake Singkarak and Ombilin Basin (both in West Sumatra) and the other article is a report from field work done on Wulan Delta in the northern part of Central Java.

On organizational note, we have just restarted FOSI Evening Discussion program and so far there were already two meetings in last August & September. The Evening Discussion program is designed for technical discussion on various basins, one basin for each month, starting from South Sumatra Basin in August and then followed by East Natuna in September. The next meeting in November will discuss North Sumatra Basin.

We also would like to announce that one of our local editors Farid Ferdian is leaving BS editorial team and he is replaced by Rina Rudd. We thank Farid for his contribution to FOSI and in the

same time, we’re excited to have Rina on board.

The next volume of Berita Sedimentologi will be published in early 2017 (BS No. 37). We are seeking contribution from all of you to share your knowledge to our fellow readers. If you would like to submit your articles to Berita Sedimentologi, please contact one of our editors.

As usual, we hope you enjoy reading this publication and thank you for your continuous support.

Best regards, Minarwan Chief Editor

INSIDE THIS ISSUE

Baram Line or West Baram Line?

A discussion with Late Prof. H.D. Tjia on its nomenclature in Jong et al. (2016) – F.L.

Kessler & J. Jong

5

Alluvial-fluvial architecture of synrift deposits: An observation from the outcrops of Brani Fm., Ombilin Basin, West Sumatra – A. Wibowo & I. Fardiansyah

35

Book Review : The SE History and Tectonic of the Australian-Asia Collision, editor: Robert Hall et J.A.

Reijers 56

Modern fluvio-lacustrine system of Lake Singkarak, West Sumatra and its application as an analogue for Upper Red Bed Fm. in the Central Sumatra Basin – E.H. Sihombing et al.

9

Longshore bar deposits in a modern fluvial-dominated delta: A case study from the Wulan Delta, Demak, Central Java, Indonesia – H.T. Atmojo et al.

44 58

Berita Sedimentologi

A sedimentological Journal of the Indonesia Sedimentologists Forum (FOSI), a commission of the Indonesian Association of Geologist (IAGI)

From the Editor

Call for paper BS #37 –

to be published in Early 2017

(4)

About FOSI

he forum was founded in 1995 as the Indonesian Sedimentologists Forum (FOSI). This organization is a communication and discussion forum for geologists, especially for those dealing with sedimentology and sedimentary geology in Indonesia.

The forum was accepted as the sedimentological commission of the Indonesian Association of Geologists (IAGI) in 1996. About 300 members were registered in 1999, including industrial and academic fellows, as well as students.

FOSI has close international relations with the Society of Sedimentary Geology (SEPM) and the International Association of Sedimentologists (IAS).

Fellowship is open to those holding a recognized degree in geology or a cognate subject and non-graduates who have at least two years relevant experience.

FOSI has organized 2 international conferences in 1999 and 2001, attended by more than 150 inter-national participants.

Most of FOSI administrative work will be handled by the editorial

team. IAGI office in Jakarta will help if necessary.

The official website of FOSI is:

http://www.iagi.or.id/fosi/

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.

T

FOSI Membership

FOSI Group Member as of OCTOBER 2016:

986 members