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Darman, Herman
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Geology of Labuan Bajo Area, East Nusa Tenggara: A short geological note as a supplemental information to Komodo National Park Purba, Junida R; Darman, Herman
Berita Sedimentologi Vol 51, No 1 (2025)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51835/bsed.2025.51.1.507

Abstract

Labuan Bajo is a captivating destination in the Lesser Sunda Islands, Eastern Indonesia. The location is renowned for its unique landscape–where volcanic remnants dramatically meet the ocean. The Komodo Dragon is the most famous animal living in the area. While the region's geological history undoubtedly encompasses a series of complex events, its regional geology has received little of the attention it deserves. This paper explores the geology of Labuan Bajo: the diverse rock formations, which consist of volcanic and carbonate sediments.The oldest rock encountered in the area is the Miocene volcanic rocks. Quaternary volcanics, which is the youngest unit, dominated the area. Columnar joints occur in some areas, indicating lava activities. Mio-Pliocene carbonates are common in the area. A cave system developed in the carbonate unit and the erosion processes develop unique shapes.
Seismic Expression of Geological Features in Seram Sea: Seram Trough, Misool-Onin Ridge and Sedimentary Basin Darman, Herman; Reemst, Paul
Berita Sedimentologi Vol 23, No 1 (2012)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2437.186 KB) | DOI: 10.51835/bsed.2012.23.1.190

Abstract

The Seram Sea is located between Seram Island and the Bird’s Head of Papua, Eastern Indonesia. This sea extends to the east towards Bintuni Bay. Some part of the sea, between Seram and Misool are deeper than 2000 m. The Seram Island is mountainous with altitudes reaching 3000 m above sea level at the center of the island.Several seismic surveys have been conducted to understand the geology of this region. The first seismic sections were published by Hamilton in 1979. These seismic sections were acquired by Western Geophysical for Phillips Petroleum. In 2000, Schlumberger published some seismic lines acquired in 1997 with an improved resolution improvement. More higher quality seismic lines were acquired as part of non exclusive and multi-client projects in the late 1990’s which provide a better geological understanding of the region and lead to several petroleum exploration opportunities.This article discusses the seismic expression of several geological features in the Seram Sea vicinity based on published seismic sections. The offshore seismic sections cover part of the imbricated complex in the north of Seram Island, the Seram Trough, the Misool-Onin High and the sedimentary basins the east of the Misool-Onin Ridge, such as the Tamaloi-Malagot Basin, the Semai-Berau Basin and the Bintuni Basin.