Felix Sihombing

Felix Sihombing
University of Indonesia | UI · Department of Geoscience

Master of Mineral Resources
DPhil student in Earth Sciences Department, University of Oxford

About

33
Publications
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45
Citations

Publications

Publications (33)
Article
Full-text available
Bojongmanik Formation which especially formed in the Western Endut Mountain Area just has been done with very rarely research. Bojongmanik Formation exposed in the western Endut Mountain is a Late Miocene rock formation with limestone and sandy limestone lithology. This research used the analysis methods of petrographic observation, especially carr...
Article
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South Sumatra Basin is one of the sedimentary basins in Indonesia which has coal bearing formation, coal-bearing formations are rock formations that have coal layers in its area. Numerous coal proximate data (free moisture, total moisture, moisture, inherent moisture, ash content, fixed carbon, sulfur content) and ultimate data (carbon (C), hydroge...
Article
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The massive development of science and technology in the industrial era 4.0 includes artificial intelligence, which is purposed to produce research output in the field of geology more accurately and can be completed in a short time using large amounts of data. Machine learning is a part of artificial intelligence that can provide learning processes...
Article
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Micro X-ray fluorescence (µXRF) is an advanced analysis technique from conventional XRF (X-Ray Fluorescence) that allows analysis of smaller areas even inclusions with irregular shapes and non-homogeneous elements. This method has a spatial resolution up to 10 µm depends on the energy by X-rays so that the excitation beam at the smallest point of t...
Article
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This research tries to compare the result of fracture measurement using the scanline as conventional method and photogrammetry method to understand the advantages of each method. This comparison is important to understand the benefit of using the photogrammetry for fracture study compared to the conventional method. The study area is located at thr...
Article
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In the coal mining industry, the coal quality is as crucial as the coal quantity because it can impact the coal usefulness. The quality of coal itself can be influenced by several factors, such as moisture content, ash, sulfur, and volatile matter. This study tries to understand the coal quality and its variation in the Muara Enim Formation of Sout...
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Kucing Liar is an economic skarn altered deposited located in Tembagapura, Papua. This deposit was found on Late Cretaceous to Miocene sedimentary rocks of Kembelangan Group and Papua New Guinea Limestone Group. The alteration from this deposit can be divided into groundmass alteration, named penetrative alteration, and selvage alteration forming h...
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Tins are important commodities of metal mineral deposits in Bangka and have been mined since the seventeenth century. The research aims to determine the characteristics of primary tin mineralization in Parit Tiga, West Bangka Regency, Bangka Belitung and the control of geological structures on mineralization. Rock samples were obtained from geologi...
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Travertine deposits are carbonate rocks consists mainly of calcium carbonate minerals, supersaturated from bicarbonate-rich water. Both recent and fossil travertine deposits are found in Ciseeng geothermal field, West Java. The travertine deposits are distributed around three distinctive areas Tirta Sayaga, Mount Panjang and Mount Peyek. This study...
Conference Paper
Full-text available
This research tries to compare the result of fracture measurement using the scanline as conventional method and photogrammetry method to understand the advantages of each method. This comparison is important to understand the benefit of using the photogrammetry for fracture study compared to the conventional method. The study area is located at thr...
Article
Full-text available
Warukin Formation is one of the coal bearing formation in Kalimantan that has significant coal resource. The formation as Middle Miocene Age and deposited in generally regression stage. In addition to coal, it is composed of mudstone and sandstone with siderite nodule, with some coal seams also have parting of carbonaceous mudstone. Coal from Waruk...
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Sebuku Island is located in Kotabaru Regency, South Kalimantan and is known as one of the main sources of laterite iron in Indonesia. Based on its tectonic setting, Sebuku Island is located within the suture zone that connects Southwest Borneo Block (SWB) and East Java West Sulawesi Block (EJWB). Due to its tectonic setting, Sebuku Island is compos...
Article
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Landslide is one of the most common disaster in Bogor City and Bogor Regency. BNPB stated that between 2013–2018 there are 44 landslides with death toll of 68 persons. Therefore, it is important to generate map to identify landslide susceptibility in research area. In this study, we try to create landslide susceptibility map of Bogor area (Bogor Re...
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Gunung Endut, located in Banten Province, has geothermal pr ospect area in its mountain slope. Some of the area of Gunung Endut has limestone facies which commonly deposited in marine environment. Based on the regional geological map of Leuwidamar, limestone facies are the member of Bojongmanik Formation within the Bogor Physiographic Zone. In Gunu...
Article
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Mount Endut is a volcano located in the eastern part of Banten Province. Previous studies revealed that Mount Endut consists mainly of Quaternary volcanic and Tertiary plutonic igneous rocks respectively. This research focuses on the petrology of igneous rocks found in the southern region of Mount Endut in order to determine the type of igneous roc...
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Process of deFormation has an effect on both dynamic and regional metamorphic rocks. Metamorphic rock of Manunggal Formation can be found as large outcrops in Karangsambung, Central Java. In this research, we did geological mapping in the Manunggal Formation outcrop area and took rock samples. The rock samples are then analysis macroscopically to d...
Article
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Pottery is a ceramic which generally used as household utensils or religious necessities such as spiritual ceremonies. This object has been used by society since long time ago that make it has certain historical and cultural values. One problem with pottery that it is hard to define its source. We believe that mineralogy could help finding the sour...
Article
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Hydrothermal alteration is a great indicator of thermal fluid dynamics, especially in a geothermal system. Hydrothermally altered minerals are formed based on temperature and the properties of the protolith. Hydrothermal alteration samples from Gunung Endut Geothermal Working Area were analysed using petrography methods. Importance in determining t...
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Bangka Island is an important tin producer in Indonesia, mostly from the secondary tin deposits. However, the secondary tin deposit is depleting, causing further exploration shifted to the primary tin mineral. The purpose of this study is to make a mineralization model of primary tin deposit in Bangka Island. Methods that implemented in this study...
Article
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Ciseeng geothermal field is located Northwest of West Java 40 km from Jakarta. Three surface manifestations are in Tirta Sayaga, Panjang Mountain, and Peyek Mountain. This study aims to build a hydrogeochemical model based on water analysis. The secondary regional geological data are retrieved to complete geological information of Ciseeng. The rese...
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Muarajambi Temple Compound situated in the side of a river in Jambi Province, Indonesia. Due to its vicinity to the river, the compound has experienced various geological event associated to the river sedimentation, such as river flood and alluvial sedimentation. We have collected two soil sample from beneath an excavated human-made structure in th...
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Banten region is known to have subvolcanic hydrocarbon system but no proven play despite oil seeps and the potential source rock have been identified in this area. A Geochemical analysis of source rock have been done on Gunung Endut, Banten Province. There are four coaly shale sample from Genteng Formation and Bojongmanik Formation collected and an...
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Remote sensing has become one of the most used methods in geothermal exploration. This technology is used to detect the presence of lineaments located in the area of geothermal exploration. The lineament can be expressed in the form of ridges and valleys. These features are closely related to the existence of geological structures. Geological struc...
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Hydrothermal alteration is an interaction between rock and hydrothermal fluid by means changing the mineralogical composition of the rock. This process is controlled by permeability, chemical composition, temperature, pressure, and duration of the hydrothermal alteration. Gunung Pancar, located in West Java, is considered an outflow for Gunung Gede...
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Sand as part of sedimentary material can be consisted of single mineral fragments, rock fragments, or even biogenic materials. Nusa Tenggara is an archipelago that was formed due to the meeting of the Indian Ocean Plate and the Eurasian Plate which supported by other geological processes. The stratigraphy of these islands is dominated by carbonate...
Article
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Geochemical assessment was completed in Gunung Endut geothermal area to determine fluid characteristics discharging from their natural surface manifestations. Gunung Endut geothermal area is centralised in the western part of the region. Three surface manifestations located in Desa Handeuleum, Cikawah and Gajrug appears along the apparent structura...
Article
Two major strike-slip faults with northeast-southwest and northwest-southeast orientation have shifted the southern Central Java, including Belik District. Consequently, many smaller faults that have the same direction as the major faults and west-east direction folding systems were emerged. The orientation of these geologic structures could be obs...
Conference Paper
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Mengkarang area is part of Merangin National Geopark, Jambi Province, Indonesia. The area is mainly consisted of Permian and Jurassic rocks and known for its well-preserved fossils, where the occurrence of this fossils could demonstrate the massive extinction of Permian Age. Despite numerous studies on fossils of Mengkarang area have been published...
Conference Paper
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Channel system produced by turbidity current has been proved as one of the most prominent hydrocarbon reservoirs. Geoscientists find many challenges to characterize and to predict the geometry of the turbiditic deposit because of their complexities, diversities, and outcrop scarcities. Thus the objective of this research is to understand the geomet...
Conference Paper
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Previous investigations of Mengkarang Formation (Sumatera, Indonesia) suggested some paleogeographical interpretation debates. Expedition in the period between 1900 and 1941 concluded that Mengkarang Formation was located in cold environment indicated by cold Gondwanan faunas found in the formation. Afterward, a study in 2013 delivered a warm tropi...
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Information on the Paleozoic tectonic evolution of the Tasmanides in eastern Australia is limited due to the presence of an extensive younger sedimentary cover. Based on the spatio-temporal distribution of deformation and magmatism, the Tasmanides have traditionally been subdivided into five domains (Delamerian, Thomson, Lachlan, Mossman and New En...
Conference Paper
Today, many new coal power plants planned to be built in Indonesia, including Kalimantan. For Kalimantan, it is important trade-off to boost electricity development, which in turn will boost the development of Kalimantan’s economy. The consequence is, every new power plant will add more carbon emission from Indonesia, which already one of the large...
Article
Mangkalihat peninsula is located between Kutai and Tarakan basins, which known as two Hydro Carbon (HC) Prolific basins in Eastern Borneo. The petroleoum system in this area is poorly known because of the different system between Kutai and Tarakan Basin. The field study is focusing in the eastern part of Mangkalihat Peninsula, where The Tabalar and...

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