Berita Sedimentologi No. 46 is Now Online!

Dear FOSI members and readers,

We are excited to announce that Berita Sedimentologi No. 46 has been published and can now be downloaded from the following link or by clicking the cover image below:

Berita Sedimentologi No. 46 contains the following articles:

  • Sedimentary record of Paleogene sequences in the Penyu and Malay Basins, offshore Peninsular Malaysia by Franz L. Kessler, John Jong and Mazlan Madon
  • Seismic expression of Paleogene Talangakar Formation – Asri & Sunda Basins, Java Sea, Indonesia by Dwandari Ralanarko, Deni Wahyuadi, Pranowo Nugroho, Wahyu Senoaji and Wrahaspati Rulandoko
  • Hydrocarbon prospectivity and petroleum system in West Sumatra Forearc Basin by Perdana Rakhmana Putra and Rusalida Ragunawati
  • Hydrocarbon columns of oil and gas fields in the South Sumatra Basin by Veridaus Napitupulu, Miftahul Jannah, Michael Silaen and Herman Darman
  • Jozef Zwierzycki, a prolific Polish geological mapping expert in Indonesia, 1914-1938 by J.T (Han) van Gorsel, Alina Chrzastek and Anna Gorecka-Nowak

Due to file size limitation, we had to upload a slightly lower resolution version of BS No. 46 into this website. Should readers need a standard resolution version of our publication, please contact our editors.

We hope this publication will contribute towards better geological understanding of the discussed areas and if you have any feedback please do not hesitate to contact us.

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Berita Sedimentologi No. 45 is available now!

Berita Sedimentologi No. 45 is now available online and can be downloaded from here. You can also click the following cover image to download BS#45:

Download Berita Sedimentologi No. 45 here

The contents of this volume are as follow:

  •  Late Cretaceous radiolarians from the Noni Formation, West Timor, Indonesia – Munasri and Agus H. Harsolumakso
  • A new insight of Talang Akar Formation in the Ridho Field, North Palembang Sub-basin, Indonesia: An integrated approach – Togi Y. Sitinjak, Ricky A. Tampubolon, Ardian Pratama, Wildanto P. Nusantara, Aziza Muis and Harsanti Setiani
  • Sedimentary basins of Indonesia: Outline and thickness variation understanding – Herman Darman and Doddy Yuliong B.A.

Enjoy your reading and please do not hesitate to contact the editors to send us your manuscripts.

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Langkawi Fun (Field) Trip – presented by IAGI-FOSI

The Kuala Lumpur Branch of Association of Indonesian Geologists (IAGI), Himpunan Ahli Geofisika Indonesia (HAGI) and Indonesian Sedimentologist Forum (FOSI) are organizing a field trip to Langkawi Island. This field trip was also supported by the Geological Society of Malaysia.

The field trip will take place on Thursday to Sunday from the 30th of January to the 2nd of February, 2020. The trip is aimed to investigate and learn about Pre-Tertiary Play analogue in the island. The instructors for this field trip are Herman Darman and Maradona Mansyur, both of IAGI-FOSI.

The field trip will cost MYR 2,000 per person (to cover logistics, meal and accommodation costs during the trip). Number of participants are limited to 25 persons only. If you’re interested to take part, please contact Mr. Fendi Yusuf to register yourself as soon as possible.

Langkawi Field Trip

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FREE/GRATIS: 2-Days Course on Basic Seismic Interpretation in Kingdom Software

Kingdom workshop Pertamina UnivA free of charge 2-Days Course on Basic Seismic Interpretation by using Kingdom Software is penciled to take place on the 23rd – 24th of November 2019 in Pertamina University, Jakarta. This course is a result of collaboration by Indonesia Brain Gain, FOSI and Pertamina University.

The course will be led by Oskar Pakpahan (Sr. Geophysicist, IBG), Maradona Mansyur (Sr. Geologist, FOSI) and Joseph Gnapragasan (IHS Markit). It will be held in the Computer Lab of Griya Legita Building of Pertamina University Campuss.

Those interested to join should contact: Aulia Rahman Pangaribuan at +62-812-1373-2324.

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Berita Sedimentologi No. 44 is Published

Berita Sedimentologi No. 44

BERITA SEDIMENTOLOGI No. 44 has been published and is now available online. The bundle can be downloaded by clicking the cover image above or the following link:

Click here to download Berita Sedimentologi No. 44

BERITA SEDIMENTOLOGI No. 44 contains the following papers:


The next BERITA SEDIMENTOLOGI is planned for publication in late December this year. Stay tuned!

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Berita Sedimentologi No. 43

Berita Sedimentologi No. 43

FOSI has published Berita Sedimentologi No. 43 and it is now available online. Readers can download this issue by clicking the cover image above or click here.

Berita Sedimentologi No. 43 contains the following papers:
– Destructive diagenesis observed in outcrop examples of Neogene sandstone reservoir and clay contact zones in Miri, Northern Sarawak, written by Franz L. Kessler and John Jong
– The stratigraphic distribution of Neogene dinoflagellate cysts from a deep water well, offshore Sabah, Northern Borneo, written by Huibert van den Brink

One of the objectives of our publication is to spread SE Asian geological knowledge of our contributors to the readers in the region and beyond. So, we hope that both papers will be useful to our readers, especially for researchers who work on northern Borneo.

We also invite you to contribute through publishing your research in Berita Sedimentologi. Please contact one of our editors if you’re interested to submit your manuscripts to Berita Sedimentologi.

Enjoy your reading!

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Kepulauan Seribu Fun Trip – 5-7 April 2019

Kep Seribu Fun Trip - 5-7 April 2019

FOSI (Indonesian Sedimentologist Forum) are organizing a geological fun-trip to Kepulauan Seribu, offshore northern Jakarta (Java Sea) on the 5ft-7th of April 2019. This event is supported by the Geological Society of Malaysia ( and Sekolah Bumi, Indonesia.

The trip will combine classroom lecture, outcrop visit and snorkeling to see modern carbonate environment in the region. The trip leader and instructor is Maradona Mansyur, an experienced Carbonate Sedimentologist. Maradona Mansyur received his Sarjana Teknik degree from Institute of Technology, Bandung and M.Sc from Chulalongkorn University, Bangkok, Thailand. His main research interests are sedimentology, sequence stratigraphy and carbonate sedimentology.

Registration is now open and the deadline is March 23rd, 2019. There are only 24 seats available for this fun-trip so, book your seat as soon as possible by contacting Ricky Tampubolon (contact number at +62-857-6238-5601). Ricky can also be reached via whatsapp.

The registration fees are as follow:
1) IDR 2,000,000/person for IAGI, FOSI, GSM, IPA, AAPG, IAS and SEPM members.
2) IDR 2,500,000/person for non member (normal rate)
3) IDR 1,500,000/person for student

Payment can be transferred to:
VM Juliana Femant
Bank Mandiri, acc. no. 135 000 649 0021

Company payment can be transferred to Sekolah Bumi, additional tax will applied, please contact Ricky for further information.

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Berita Sedimentologi No. 42

We’re pleased to announce that Berita Sedimentologi No. 42 is now available online from the following link. The entire volume can also be downloaded by clicking the cover image below:

Berita Sedimentologi No. 42

This volume contains the following articles:
– How did channel systems survive high sea level periods? New sedimentological insights from outcrop, modern analogue and subsurface data in the Lower Kutai Basi, E. Kalimantan – by Erlangga Septama et al.
– Coaly petroleum source rocks in Malaysia – is the Present the Key to the Past? – by Kim-Kiat Liaw
– Reservoir potential of Neogene rocks in the Biak Island and its surrounding areas – by Alviyanda et al.

The next volume will be published in April 2019, if you’re interested to contribute, please contact one of our editors.

Happy reading!

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Berita Sedimentologi No. 41 – September 2018

Berita Sedimentologi No. 41

Berita Sedimentologi No. 41 is now published and available online. Pleas download this publication by clicking the cover image above. Otherwise, please click the following link.

In this volume we published two research papers on sandstone and carbonate diagenesis. The papers are:
– Sandstone diagenesis: establishing threshold temperature and depth of porosity deterioration, Penyu Basin and Tenggol Arch, offshore Peninsular Malaysia by F.L. Kessler and J. Jong
– The effect of meteoric phreatic diagenesis and spring sapping on the formation of submarine collapse structures in the Biak Basin, eastern Indonesia by D.P. Gold

We hope this publication will be useful to you all.

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FOSI-IAS-SEPM Regional Seminar: Past & Present Sedimentation in Tropical Region


3rd Ffosi-reg3-logo.OSI Regional Seminar titled “Past & Present Sedimentation in Tropical Region” will be held in Yogyakarta from 5 to 6 September 2018. This is a join seminar with IAS (International Association of Sedimentologists) and SEPM (Society of Sedimentary Geology). The seminar is hosted by Universias Gajah Mada. The committee has the privilege to host speakers Malaysia, Brunei, Taiwan, Thailand, Indonesia, Australia, USA, UK, and the Netherlands.

Universitas Gajah Mada
Grha Sabha Pranama, Yogyakarta, 55281
Google Map Location

The oral session have 9 key note / invited speakers and 12 presenters. About 24 posters will be presented in the program as well. Detail program is available downloadable HERE

Key note speakers in this seminar are:

  • Eko Yulianto LIPI, Indonesia
  • Han van Gorsel Geoscience Research, USA
  • Charlie Wu University of Indonesia
  • Moyra Wilson Western Australia
  • Liaw Kim Kiat UT Petronas, Malaysia
  • Meor Amir Hassan University of Malaya
  • Afroz Ahmad Shah University of Brunei Darussalam
  • John Warren Chulalongkorn Univ. – Thailand
  • Ludvig Lowermark National Taiwan University

FULL PROGRAMs up to August 16 are available below:

  • Full oral program is HERE
  • Full poster program is HERE

REGISTRATION – Standard Rate
Registration fee for general participants are listed below:

  • Professional US$ 110 (foreign) / IDR 1,100,000 (local)
  • Academic / researcher US$ 90 (foreign) / IDR 900,000 (local)
  • Graduate students / fresh graduates US$ 60 (foreign) / IDR 600,000 (local)
  • Undergraduate students US$ 45 (foreign) / IDR 450,000 (local)

Registration fee for FOSI-IAGI / IAS /SEPM members are listed below:

  • Professional US$ 95 (foreign) / IDR 950,000 (local)
  • Academic / researcher US$ 70 (foreign) / IDR 700,000 (local)
  • Graduate students / fresh graduates US$ 45 (foreign) / IDR 450,000 (local)
  • Undergraduate students US$ 35 (foreign) / IDR 350,000 (local)

Registration form:
Please fill In the online registration form in or download the PDF FORM here.
Payment is through bank transfer to the following account:
Bank Mandiri; Acc. Name: VM Juliana Fermant; Acc. Number: 1350006490021
The registration fee include 2 days meal and refreshers and exclude hotel / accommodation.


Registration will be closed 2 weeks before the field trip start.
Pre Seminar Mahakam Delta Field Trip
31 Aug – 4 Sept 2018
Meeting point: Balikpapan, East Kalimantan
Registration fee: IDR 12,500,000
Minimum participants: 15 pax
Contact person: Erlangga Septama (

Post Seminar Toba Field Trip
7 – 10 Sept
Meeting point: Silangit, North Sumatra
Registration fee: IDR 6,900,000 (tentative)
Minimum participants: 12 pax
Contact person: Gesit (

Sponsorship opportunity for this event is still available. Please contact the committee directly











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