cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Ivan Ferdian
Contact Email
ivan.ijgbg@gmail.com
Phone
-
Journal Mail Official
ivan.ijgbg@gmail.com
Editorial Address
-
Location
Kota bandung,
Jawa barat
INDONESIA
IJOG : Indonesian Journal on Geoscience
Published by Geological Agency of Indonesia
ISSN : 23559314     EISSN : 23559306     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
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 internationalize the journal, The Indonesian Journal on Geoscience, which is open for papers of geology, geophysics, geochemistry, geodetics, geography, and soil science. This new born journal is expected to be published three times a year. As an international publication, of course it must all be written in an international language, in this case English. This adds difficulties to the effort to obtain good papers in English to publish although the credit points that an author will get are much higher.
Arjuna Subject : -
Articles 10 Documents
 1 
Search results for , issue "Vol. 11 No. 3 (2024)" : 10 Documents clear
The Development of Tourism Areas in Abang Temple Yogyakarta, Using Engineering Geological Capability Kristanto, Wisnu Aji Dwi; Utami, Ayu
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.365-376

Abstract

Temples are interesting objects used for the exploration, exploitation, and development of tourist areas. However, these cultural sites and the surrounding environment need to be adequately preserved to prevent disasters. One of the interesting aspects of temples needed to be developed as tourist areas is its engineering geological capability. Therefore, this study aims to determine the engineering geological capability of Abang Temple located in the village of Jogotirto, Berbah, Sleman, Yogyakarta, Indonesia. This Buddhist heritage temple was built on an isolated hill with the constituent materials of red bricks, tuff, and andesite that have experienced weathering over the decades. The temple is geographically located in an interesting natural nuance, thereby making it a dilemma for developing tourist areas. This research was carried out by mapping and measuring field data on several influential aspects, including the carrying capacity of rocks and soil, slope, the potential for geological disasters, the depth of groundwater level, the ease of excavation, the land use, the rock weathering level, and the discontinuity field density. The results shows that there are three zones of engineering geological capability for developing temples into tourist areas, namely high, medium, and low capabilities.
Review on the Impacts of the Samalas Eruption (1257 CE) to the Hydrogeological Conditions of Mataram, Lombok, Indonesia Malawani, Mukhamad Ngainul; Hadmoko, Danang Sri; Lavigne, Franck; Agniy, Romza Fauzan; Hayat, Dimas Maula; Astabella, Relinda Dewi; Laksono, Agung; Syamsuddin, Syamsuddin; Mutaqin, Bachtiar Wahyu
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.339-348

Abstract

This paper examines the local impacts of the 1257 CE Samalas eruption in the Mataram plain in relation to the hydrogeological conditions. Data from several previous studies in the Mataram plain is summarized and then reinterpreted. Data collected from new fieldwork is also presented. This review summarizes hydrogeological conditions into several categories, i.e. stratigraphy, aquifer formation, groundwater quality, and evolution. Two coring data were evaluated, which showed that Mataram plain has a relatively thick alluvial layer with a dominant material of sand mixed with pumice from the reworked deposit of the 1257 CE Samalas eruption. The sediment from this eruption formed a freshwater aquifer layer up to ~18 m deep. Using resistivity data, the aquifer layers in the studied area were characterized as unconfined aquifer, aquitard, and semi-unconfined aquifer. Seven water samples show that the groundwater in the studied area is in good condition, which indicates the bicarbonate water type. The results of the analysis show that the impact of the 1257 CE Samalas eruption on the hydrogeology of Mataram is considered a positive impact, i.e. forming an unconfined aquifer containing freshwater that is good for domestic uses.
Geophysical Investigation of Buried Small Fault Beneath Western Mount Malabar Using Electrical Resistivity Tomography in The Great Bandung Basin Rim Susanto, Kusnahadi; Harja, Asep; Ma’arif, Farham Rezqi; Mukhtar, Husneni
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.409-421

Abstract

This article presents the discovery of a buried fault beneath the soil layers in the Mt Malabar area, which complements the information on suspected faults on the previous geological maps. Using an Electrical Resistivity Tomography (ERT) method, this study aims to delineate the layer discontinuity as a fault and describe the subsurface geology. This study employed a 1400 m long ERT line as the main line to identify buried fault traces, while each ERT line has an 800 m long installation across the main ERT line to obtain the direction of the minor fault. The investigation found a minor fault in the rock layer at a high resistivity layer, approximately 160 m below the surface. The identified rock units are believed to include sandy clay in the upper layer, followed by tuff, sandstone, and basalt lava in the lower layer because its resistivity value is above 250 Ohm.m. The 3D ERT model interpreted a minor buried fault as a weak zone beneath the soil and obtained the fault strike at approximately N 310°E and dipping 66°. Furthermore, these results are strengthened by the geological map, which confirms that ERT L-1 and ERT L-3 profiles coincide with a suspected fault in the Qmt rock unit area.
Structural and Karst Studies Using 3D Digital Outcrop Model: A Case Study in Gunung Keriang, Kedah, Peninsular Malaysia Eng, Tan Yan; Meng, Choong Chee; Aznan, Muhammad Amzar Bin; Rosni, Amirruddin Bin; Yusof, Muhammad Aslam MD; Mohamed, Muhammad Azfar Bin; A.B. Rahman, Siti Sarah Binti
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.325-338

Abstract

A digital outcrop model (DOM) of the Permo-Triassic limestone of Gunung Keriang, Kedah, was constructed for structural analysis and karst study. Structural analysis of beddings and fractures within the DOM revealed that the limestone beds are characterized by gently inclined planes with NE ̶ SW and NW ̶ SE strikes, forming an upright N ̶ S trending synclinal fold, and being cross-cut by four steeply-dipping fracture sets (NE ̶ SW, NW ̶ SE, N ̶ S, and E ̶ W). The synthesis of these fracture sets indicates that the NW ̶ SE and NE ̶ SW fractures form a conjugate pattern suggestive of E ̶ W shortening, which aligns with the observed N ̶ S fold. Karst development, including elongated sinkholes and cave paths oriented in the NE ̶ SW direction, correlates with the fracture patterns, highlighting the NE ̶SW fracture network significant role in karst formation. The integrated data supports the hypothesis that these fracture patterns are major factors in the dissolution and development of karst features in the region.
The Investigation of Subsurface Beds using Microtremor and Geo-electric Methods in A Liquefied Area in Bengkulu City After The Bengkulu-Mentawai Earthquake Farid, Muhammad; Mase, Lindung Zalbuin; Fathani, Teuku Faisal
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.377-390

Abstract

Bengkulu Province, Indonesia, is one of regions prone to earthquake hazards. Daily seismic activity, albeit minor, and imperceptible to humans is common place. Data from the Meteorology, Climatology, and Geophysics Agency reveals an average of eight earthquakes per week. Earthquakes often trigger subsequent disasters such as tsunamis, landslides, and liquefaction. However, liquefaction-related phenomena are often overlooked in researchs, particularly concerning subsurface layers. A notable event occurred on September 12th, 2007, when a powerful 8.6 magnitude earthquake struck Indonesia, causing significant damage, particularly in Bengkulu City. This was followed by a liquefaction disaster in Tanah Patah Village, Bengkulu City. Consequently, the aim of this study is to assess the subsurface conditions in the liquefaction-affected area using geophysical techniques, including microtremor and geoelectric surveys. The data was analyzed to evaluate soil conditions in the affected zone. The resistivity values indicate a predominance of water and sand mixtures at depths of 0 - 20 m (ranging from 1.46 to 15.5 Ω·m in Geo_TP-1 and from 4.64 to 15.1 Ω·m in Geo_TP-2). These conditions can facilitate processes like condensation and water flow, leading to sand compaction and increase susceptibility to liquefaction. The findings reveal that loose sand dominates the subsurface layers, rendering them highly vulnerable to liquefaction during intense seismic events. Furthermore, the environmental characteristics of the studied area exacerbate its susceptibility to liquefaction. This study provides a comprehensive analysis of soil conditions in the liquefied zone of Bengkulu City.
Comparative Study of Seismic Hazard Analysis Using Classical PSHA and PSHA Method in Java Island, Indonesia Goro , Garup Lambang; Irsyam, Masyhur; Meilano, Irwan; Asrurifak, M.
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.349-363

Abstract

In general, seismic hazard analysis is conducted using a probabilistic approach (PSHA), whilst seismic risk analysis is computed using a stochastic approach. To figur out more differences between the two methods, a comparative study of those two approaches needs to be conducted. The study was conducted in Java Island which is the most populated island in Indonesia, and prone to earthquakes, particularly in the southern part due to the subduction of the Australian Plate and many active shallow faults along the island. To find out whether the hazards occurred in the risk analysis were closer to the results of Classical PSHA, it is necessary to examine the comparison of the two methods. The difference between the Event-Based and Classical methods is the use of a synthetic catalog that depends on the input value of SES (Stochastic Event Set). The research began with hazard computation with both methods, where the Event-Based PSHA method was given varying SES values. Determining the SES value in the Event-Based method is an important stage to conduct as a significant input parameter in a risk analysis, particularly the loss analysis. The comparison results conclude that the Event-Based PSHA with SES= 200,000 produced a wellconfirmed hazard map compared to the Classical PSHA result with the smallest standard deviation and variation, i.e. 0.0172 and 0.0003 respectively.
Geochemical Characteristics and Origin of Crude Oils from Sunda and Asri Basins, Indonesia Priyanto, Bagus; Subroto, Eddy A; Kesumajana, Asep H P; Susanto, Very; Suryanto, Agus D
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.437-454

Abstract

The Sunda and Asri Basins are back-arc basins located SE of Sundaland at the present day. These basins contain Cenozoic sediments deposited in a Paleogene half-graben system. This rifing was followed by sagging during the Neogene associated with a north-south major fault system in the eastern part. The Sunda and Asri Basins constitute significant petroliferous basins in Indonesia which have produced more than a billion barrels of oil equivalent. Some studies conducted focus on geochemistry only in Sunda or Asri Basins, but a comprehensive geochemical study integrating data from both basins have never been conducted. This is the first paper to integrate the geochemical characteristics and the origin of crude oils from Sunda and Asri Basins. A total of eighteen crude oils were investigated to delineate their characteristics. The results provide an explanation about the origin of the organic matter and the genetic relationship between crude oils from Sunda and Asri Basins, and their probable source rocks. This study presents an in-depth geochemical characterization. The crude oils were classified as aliphatic oils, as indicated by their high saturated hydrocarbon fractions (>50 %). The API gravity values of the crude oils range from 25.3 to 39, and their sulfur content was low (0.01 %). Geochemistry analysis reveals a novel interpretation of crude oils originating from shale source rock deposited under oxic-suboxic conditions. Sunda and Asri crude oils exhibited relatively similar stable carbon compositions. The modest concentrations of biomarker 18α(H)-oleanane (OL) indicate that the source age is younger than Late Cretaceous. The crude oil in the Sunda and Asri Basins were charged from source rocks that reached early to peak maturity. The results of the current study strongly indicate the differentiation in lacustrine organofacies of crude oils from the Sunda and Asri Basins. The source rock for these crude oils were shales from the Paleogene syn-rift Banuwati Formation.
Coral Reef Restoration for Coastal Protection: Water Quality Monitoring in Indonesia Coral Reef Garden Nusa Dua, Bali Burhanuddin, Safri; Badriana, Mochamad Riam; Nur, Ashadi Arifin; Abdurrahman, Umar; Jeon, Chungkyun; Radjawane, Ivonne Milichristi; Park, Hansan; Hutahaean, Andreas Albertino
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.455-470

Abstract

The Indonesia Coral Reef Garden (ICRG) is a coral reef restoration program with Nusa Dua as one of five sites in Bali. A plantation program has been done by 2020, but it is necessary to monitor the condition. A field survey in Nusa Dua was carried out on October 3-4, 2022 to measure and check ocean parameters that are suitable for coral life and diving in artificial coral reefs installed. In the survey, several points had been measured through CTD Valeport Midas+ prior to measuring ocean parameters in the same location as a preliminary survey done two years in advance. The sea condition of temperature, salinity, pH, turbidity, and DO is 24.89 - 28.69 °C, 33.75 - 34.22 psu, 8.0 - 8.1, 1.19 - 4.27 FTU, and 4.47 - 5.24 mg/L, respectively. Based on the conformity of water quality, the water condition is good for coral growth. A total of 15 locations are used to put artificial coral reefs in many forms or structures. The coral plantation program in Nusa Dua shows promising progress in qualitatively consisting of species of Montipora sp., Acropora sp., and Alcyonacea sp. A continuous measurement is demanded to monitor the condition of coral growth quantitatively.
Estimating Groundwater Inflow to The Underground Mine Works using a 3D Groundwater Model at Vein Kubang Cicau, UBPE Pongkor Naiborhu, Kory Yohana Adinda; Anggayana, Komang; Widodo, Lilik Eko; Wibowo, Aryo Prawoto
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.423-435

Abstract

Estimating groundwater inflow to underground mines is essential for ensuring that mining activities can be conducted safely and continuously. Research conducted at UBPE Pongkor indicates that the veins have the fault connectivity with the Kubang Cicau vein showing potential for deeper mining, while other veins are expected to become exhausted. As the result, the Kubang Cicau vein will likely be at a lower elevation in the future. Planning decisions regarding groundwater control measures, such as dewatering, can be made in advance, contributing to a more efficient assessment of the economic feasibility of mining development. Groundwater modeling using MODFLOW software predicted a maximum groundwater discharge of 55 L/s. To address the model uncertainty, a sensitivity analysis was performed by increasing the hydraulic conductivity parameter by two order of magnitude, as this value significantly affects groundwater inflow. Conversely, decreasing the hydraulic conductivity by two order resulted in a new discharge estimate of 87 L/s. In the worst-case scenario, with the highest specific storage values, the inflow increased to 76 L/s. This demonstrates that although changes in specific storage have a notable effect on groundwater inflows, the impact is less pronounced compared to the changes in hydraulic conductivity. Nonetheless, Ss remains a key parameter, particularly in transient simulations where storage plays a more significant role in the system response to changes in water levels.
Characteristic Analysis of Indonesian Low and Medium Rank Coals and Their Influence on Carbon Dioxide Adsorption Capacity Ramdhani, Muhammad Rizki; Yan Rizal R; Sigit Arso Wibisono; Soleh Basuki Rahmat; Muhammad Abdurachman Ibrahim; Eko Budi Cahyono
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.391-407

Abstract

Indonesia has great deep-seated coal potential , such as Lakat coal and Muaraenim coal, which can be utilized as a medium for Carbon Capture and Storage (CCS). These coals vary in characteristic which affects their ability to adsorb or store carbon dioxide gas (CO2). The moisture content of the Lakat coal is less than that of the Muaraenim coal, while the ash content of Lakat coal is 4-5 times higher than the Muaraenim coal. Lakat coal contains more vitrinite content than Muaraenim coal, while Muaraenim coal contains more inertinite content than Lakat coal. The CO2 gas adsorption capacity of Muaraenim coal is 37.62 cc/g which higher than Lakat coal (31.56 cc/g) on dry ash-free basis. The adsorbed CO2 is negatively correlated with vitrinite reflectance, ash content, and moisture content in both coals. The correlation between maceral composition (vitrinite and inertinite content) and adsorbed CO2 content differs between these coals. These analyses will support the CCS/CCUS study in deep seated coal seams by providing the information of CO2 maximum holding capacity in coal and their relationship to its chemical and organic composition.

Page 1 of 1 | Total Record : 10

 1 

Filter by Year

2024 2024


Reset
Filter By Issues
All Issue Vol. 12 No. 3 (2025) Vol. 12 No. 2 (2025) Vol. 12 No. 1 (2025) Vol. 11 No. 3 (2024) Vol. 11 No. 2 (2024) Vol. 11 No. 1 (2024) Vol. 10 No. 3 (2023) Vol 10, No 2 (2023): in-press Vol. 10 No. 2 (2023) Vol 10, No 1 (2023) Vol. 10 No. 1 (2023) Vol. 9 No. 3 (2022) Vol 9, No 3 (2022) Vol 9, No 2 (2022) Vol. 9 No. 2 (2022) Vol. 9 No. 1 (2022) Vol 9, No 1 (2022) Vol. 8 No. 3 (2021) Vol 8, No 3 (2021) Vol 8, No 2 (2021) Vol. 8 No. 2 (2021) Vol 8, No 1 (2021) Vol. 8 No. 1 (2021) Vol 7, No 3 (2020) Vol 7, No 2 (2020) Vol 7, No 1 (2020) Vol 6, No 3 (2019) Vol 6, No 3 (2019): in-press Vol 6, No 2 (2019) Vol 6, No 2 (2019) Vol 6, No 1 (2019) Vol 6, No 1 (2019) Vol 5, No 3 (2018) Vol 5, No 3 (2018) Vol 5, No 2 (2018) Vol 5, No 2 (2018) Vol 5, No 1 (2018) Vol. 5 No. 1 (2018) Vol 5, No 1 (2018) Vol 4, No 3 (2017) Vol 4, No 3 (2017) Vol 4, No 2 (2017) Vol 4, No 2 (2017) Vol 4, No 1 (2017) Vol 4, No 1 (2017) Vol 3, No 3 (2016) Vol 3, No 3 (2016) Vol 3, No 2 (2016) Vol 3, No 2 (2016) Vol 3, No 1 (2016): in-press Vol 3, No 1 (2016) Vol 2, No 3 (2015) Vol 2, No 3 (2015) Vol 2, No 2 (2015) Vol 2, No 2 (2015) Vol 2, No 1 (2015) Vol 2, No 1 (2015) Vol 1, No 3 (2014) Vol 1, No 3 (2014) Vol 1, No 2 (2014) Vol 1, No 2 (2014) Vol 1, No 1 (2014) Vol 1, No 1 (2014) Vol 8, No 4 (2013) Vol 8, No 4 (2013) Vol 8, No 3 (2013) Vol 8, No 3 (2013) Vol 8, No 2 (2013) Vol 8, No 2 (2013) Vol 8, No 1 (2013) Vol 8, No 1 (2013) Vol 7, No 4 (2012) Vol 7, No 4 (2012) Vol 7, No 3 (2012) Vol 7, No 3 (2012) Vol 7, No 2 (2012) Vol 7, No 2 (2012) Vol 7, No 1 (2012) Vol 7, No 1 (2012) Vol 6, No 4 (2011) Vol 6, No 4 (2011) Vol 6, No 3 (2011) Vol 6, No 3 (2011) Vol 6, No 2 (2011) Vol 6, No 2 (2011) Vol 6, No 1 (2011) Vol 6, No 1 (2011) Vol 5, No 4 (2010) Vol 5, No 4 (2010) Vol 5, No 3 (2010) Vol 5, No 3 (2010) Vol 5, No 2 (2010) Vol 5, No 2 (2010) Vol 5, No 1 (2010) Vol 5, No 1 (2010) Vol 4, No 4 (2009) Vol 4, No 4 (2009) Vol 4, No 3 (2009) Vol 4, No 3 (2009) Vol 4, No 2 (2009) Vol 4, No 2 (2009) Vol 4, No 1 (2009) Vol 4, No 1 (2009) Vol 3, No 4 (2008) Vol 3, No 4 (2008) Vol 3, No 3 (2008) Vol 3, No 3 (2008) Vol 3, No 2 (2008) Vol 3, No 2 (2008) Vol 3, No 1 (2008) Vol 3, No 1 (2008) Vol 2, No 4 (2007) Vol 2, No 4 (2007) Vol 2, No 3 (2007) Vol 2, No 3 (2007) Vol 2, No 2 (2007) Vol 2, No 2 (2007) Vol 2, No 1 (2007) Vol 2, No 1 (2007) Vol 1, No 4 (2006) Vol 1, No 4 (2006) Vol 1, No 3 (2006) Vol 1, No 3 (2006) Vol 1, No 2 (2006) Vol 1, No 2 (2006) Vol 1, No 1 (2006) Vol 1, No 1 (2006) More Issue