GSM Technical talk (in collaboration with the Geology Programme, UKM): “The Towuti Drilling Project and the Challenges in Reconstructing the Climate and Environmental History of Central Indonesia” - Satria Bijaksana (Professor, Institut Teknologi Bandung)

Event Code : GSMTT 3-27-2017 Venue Name : Bilik Mesyuarat Program Geologi, Bangunan Geologi, Fakulti Sains & Teknologi, Universiti Kebangsaan Malaysia, Bangi Host Name : Coordinator Name : Date From : 2017-03-29

The Towuti Drilling Project and the Challenges in Reconstructing the Climate and Environmental History of Central Indonesia

Satria BIJAKSANA(1), James RUSSELL(2), Hendrik VOGEL(3), Martin MELLES(4)

(1)Institut Teknologi Bandung, Indonesia, (2)Brown University, United States of America, (3)University of Bern, Switzerland, (4)University of Cologne, Germany

ABSTRACT

Located in the Island of Sulawesi, Lake Towuti is the largest tectonic lake in Indonesia, and the longest known terrestrial sediment archive in Southeast Asia. In 2015, 30 scientists from 8 different countries joined forces in the Towuti Drilling Project (TDP) and recovered over 1,000 meters of sediment core from 3 different drill sites in the northern part of Lake Towuti. The main objective of the TDP is to decipher the climate and environmental history of central Indonesia, which is important in the reconstruction of long-term changes in terrestrial climate in the Western Pacific warm pool, heart of the El Niño-Southern Oscillation (ENSO). Preliminary findings show that apart from alteration of lake clays and calcareous sediments in the upper ~ 100 m as well as peats and gravels in the basal units of our records, there are numerous tephra layers in the sediments. This presentation will show the operational aspects of the TDP and the challenges the TDP face in understanding the climate and environmental history of the region.

Talk begins at 11am, refreshments at 10:30am.