Luhut Pardamean Siringoringo
Institut Teknologi Sumatera, Jl. Terusan Ryacudu, Kecamatan Jati Agung, Lampung Selatan 35365, Indonesia.

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Journal : Journal of Geoscience, Engineering, Environment, and Technology

The Paleogene Tectonostratigraphy Of Northern Part Masalima Trench Basin Siringoringo, Luhut Pardamean; Noeradi, Dardji
Journal of Geoscience, Engineering, Environment, and Technology Vol 1 No 1 (2016): JGEET Vol 01 No 01 : December (2016)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3007.532 KB) | DOI: 10.24273/jgeet.2016.11.2

Abstract

Northern part of Masalima Trench Basin is located in the southern part of the Strait of Makassar, which includes Masalima Trough and Massalima High. The area of research is an extension of the South Makassar Basin which extends from South Makassar Basin to the Northeast part of Java Sea. Subsurface data are used such as 2D seismic sections (21 lines) and data drilling wells (2 wells) to understand the tectonic structure in the basin formation and understand the stratigraphic order of basin. Based on well data can be known that Northern part Masalima Trench Basin is aborted rift because marked by post rift phase. Northern part Masalima Trench Basin was formed by normal faults which have trend northeast-southwest with  pre rift, early syn rift, late syn rift, and post rift sediment geometry. Early syn rift sediment was Middle Eocene, late syn rift sediment was Middle Eocene till Early Oligocene and post rift sediment was Early Oligocene till Early Miocene. The Depositional environment of early syn rift phase such as beach, shallow marine, and land. The Depositional environment of late syn rift phase such as beach till deep marine, and the depositional environment of post rift is deep marine.
The Paleogene Tectonostratigraphy Of Northern Part Masalima Trench Basin Luhut Pardamean Siringoringo; Dardji Noeradi
Journal of Geoscience, Engineering, Environment, and Technology Vol. 1 No. 1 (2016): JGEET Vol 01 No 01 : December (2016)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3007.532 KB) | DOI: 10.24273/jgeet.2016.11.2

Abstract

Northern part of Masalima Trench Basin is located in the southern part of the Strait of Makassar, which includes Masalima Trough and Massalima High. The area of research is an extension of the South Makassar Basin which extends from South Makassar Basin to the Northeast part of Java Sea. Subsurface data are used such as 2D seismic sections (21 lines) and data drilling wells (2 wells) to understand the tectonic structure in the basin formation and understand the stratigraphic order of basin. Based on well data can be known that Northern part Masalima Trench Basin is aborted rift because marked by post rift phase. Northern part Masalima Trench Basin was formed by normal faults which have trend northeast-southwest with pre rift, early syn rift, late syn rift, and post rift sediment geometry. Early syn rift sediment was Middle Eocene, late syn rift sediment was Middle Eocene till Early Oligocene and post rift sediment was Early Oligocene till Early Miocene. The Depositional environment of early syn rift phase such as beach, shallow marine, and land. The Depositional environment of late syn rift phase such as beach till deep marine, and the depositional environment of post rift is deep marine.
Hydrogeochemical and Groundwater Assessment for Drinking Purpose at ITERA Campus Area and Its Surroundings Luhut Pardamean Siringoringo; Reza Rizki; Janner Nababan
Journal of Geoscience, Engineering, Environment, and Technology Vol. 4 No. 1 (2019): JGEET Vol 04 No 01 : March (2019)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1121.204 KB) | DOI: 10.25299/jgeet.2019.4.1.2478

Abstract

Groundwater research for drinking purpose was very important to be done at ITERA campus and its surroundings. It is caused the area is very close to social activities, especially for students. The hydrogeochemical analysis was done with integrating Piper diagram plotting result, X-Y plotting result for some cations and anions, and Gibbs diagram plotting result. Groundwater assessment for drinking purpose referred to Peraturan Menteri Kesehatan Republik Indonesia No. 492/MENKES/PER/IV/2010. There were 14 samples that were taken from nine dig wells and five drill wells. The groundwater facieses were dominated by Facies Na-HCO3-Cl (35,71%) followed by Facies Na-Cl (21,43%), Facies Na-HCO3 (21,43%), Facies Na-SO4-Cl (14,29%), dan Facies Ca-Mg-HCO3 (7,14%). Generally, Groundwater hydrogeochemical of research area shows that groundwater chemistries are controlled by minerals weathering, evaporation, and precipitation. There are eight wells that not proper for drinking and six wells that proper for drinking. Integration lab result, stratigraphic analysis, and depth aquifer show that groundwater that proper for drinking comes from confined aquifer while that not proper for drinking comes from unconfined aquifer
Locating Geodiversity Hotspots through Grid-Based Spatial Indexing: Lombok Island, Indonesia Gathot Harbowo, Danni; Siringoringo, Luhut Pardamean
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 02 (2025): JGEET Vol 10 No 02 : June (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.02.18898

Abstract

Locating geodiversity hotspots across large areas poses a challenge for further geopark development in Indonesia, especially on Lombok Island, which spans 5,435 km². A geodiversity hotspot is an area rich in unique geological features that need to be determined. Therefore, this study's objective is to track and assess the potential of geodiversity on Lombok Island. The methods employed a grid-based spatial indexing method to pinpoint potential geodiversity hotspots in Lombok. The entire island was covered using 238 grids of 5×5 km² for this study. The technique applied these equal weight parameters: relative drainage density (20%), diversity of topographical slope (20%), elevation (20%), diversity of geological formation (20%), and soil characteristics (20%). The identified geodiversity hotspots were validated through ground checking. The results show significant geodiversity hotspots: Gangga (116°12'13.122"E;8°21'24.154"S), Sikur (116°24'32.015"E;8°29'23.597"S), Bayan (116°32'33.211"E;8°16'22.39"S), Sembalun (116°29'18.063"E;8°23'22.156"S), Sambelia (116°35'40.856"E;8°24'1.371"S), and Gerung-Kuripan (116°8'20.085"E;8°41'46.513"S). These hotspots showcase a range of lithologies from the Oligo-Miocene to the Plio-Pleistocene, along with terrestrial and marine fossils, minerals, geothermal activities associated with the Rinjani Volcano, and diverse soil types that support rich biodiversity. The dense drainage systems in these regions create stunning waterfalls and distinct elevational ecosystems. Tourism is primarily concentrated in well-known sites like Sembalun and Gerung-Kuripan, while lesser-known areas such as Sambelia, Gangga, Sikur, and Bayan remain underexplored. The natural drainage systems in these hotspots play a crucial role in hydrology and contribute to the beautiful landscapes. This study concludes that Lombok Island has six significant geodiversity hotspots, which hold geological importance for supporting the geoheritage of the Rinjani-Lombok UNESCO Global Geopark. The findings contribute to promoting local development by integrating cultural aspects and ensuring sustainability in line with global sustainable development goals. Additionally, the study provides new insights into the geotourism potential that can support sustainable development within the Rinjani-Lombok UNESCO Global Geopark.