IJOG : Indonesian Journal on Geoscience
Vol 7, No 3 (2020)

The Significance of the Banda Sea: Tectonic Deformation Review in Eastern Sulawesi

Adept Titu-Eki (Department of Mining Engineering, University of Nusa Cendana, Jln. Adisucipto, Penfui, Kupang - West Timor, Nusa Tenggara Timur 85228)
Robert Hall (SE Asia Research Group, Department of Earth Science, Royal Holloway University of London, Egham, Surrey TW20 0EX)



Article Info

Publish Date
07 Sep 2020

Abstract

DOI:10.17014/ijog.7.3.291-303The geology of eastern Sulawesi is widely known for its complexity due to multiple deformation stages.The geology on land has been studied excessively, but little assessment has been made on the offshore geology, thus the geological evolution of the area remains a subject of controversy. A thorough observation of high multibeam bathymetry dataset offshore and SRTM dataset onshore provides an understanding on the geological features relating to the tectonic deformation. Exquisite morphological features include carbonate buildups and gravitational collapse dominating the shelf areas whereas distinct form of ridges and seamount exists in the offshore. Structural features in this area including the major Tolo Thrust and South Sula Fault varied structural lineations on land with several polygonal extensional faulting and accretionary wedge on the west of the North Banda Sea. The existence of these features may indicate that the area was majorly deformed during Neogene, specifically relating to the opening of the Banda Sea due to the subduction rollback of Banda.

Copyrights © 2020






Journal Info

Abbrev

IJOG

Publisher

Subject

Earth & Planetary Sciences

Description

The spirit to improve the journal to be more credible is increasing, and in 2012 it invited earth scientists in East and Southeast Asia as well as some western countries to join the journal for the editor positions in the Indonesia Journal of Geology. This is also to realize our present goal to ...