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Journal of Geoscience, Engineering, Environment, and Technology
Published by Universitas Islam Riau
ISSN : 2503216X     EISSN : 25415794     DOI : 10.25299
Core Subject : Science, Social, Engineering,
Earth & Planetary Sciences Engineering Environmental Science Physics
JGEET (Journal of Geoscience, Engineering, Environment and Technology) published the original research papers or reviews about the earth and planetary science, engineering, environment, and development of Technology related to geoscience. The objective of this journal is to disseminate the results of research and scientific studies which contribute to the understanding, development theories, and concepts of science and its application to the earth science or geoscience field. Terms of publishing the manuscript were never published or not being filed in other journals, manuscripts originating from local and International. JGEET (Journal of Geoscience, Engineering, Environment and Technology) managed by the Department of Geological Engineering, Faculty of Engineering, Universitas Islam Riau.
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Articles 551 Documents
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Front matter JGEET Vol 09 No 04 2024 (J. Geoscience Eng. Environ. Technol.), JGEET
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 04 (2024): JGEET Vol 09 No 04 : December (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Continuity Analysis of Groundwater Aquifers Using Geoelectrical Vertical Electrical Sounding (VES) Method with Schlumberger Configuration in Serayu-Citanduy Road and Golf Course, Tanah Merah Village, North Samarinda District, Indonesia Himawan Sadewo, Hengky; Djayus; Mislan; Lepong, Piter
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.10571

Abstract

This study aims to analyze the continuity of the aquifer system between the Serayu-Citanduy area and the Golf Course area in Tanah Merah Village, North Samarinda District, using the Vertical Electrical Sounding (VES) method with Schlumberger configuration. Building on previous research that compared geoelectrical mapping and sounding methods for identifying aquifer layers in the Serayu-Citanduy area, this study focuses on aquifer connectivity based on resistivity profiles and geological interpretation. The VES data collected from eight measurement points revealed significant variations in lithology and aquifer types. At the Golf Course, the surface layer consists of soil (0.8 to 2.6 m depth), overlying a thick silt layer (up to 160 m depth) and a permeable sandstone aquifer between depths of 152.7 m and 160 m. The resistivity of the sandstone aquifer is approximately 20-50 Ωm. Meanwhile, at the Serayu-Citanduy Road, the lithology is divided into five main layers, with the surface layer (0.8 to 2.5 m) followed by a silt layer (5.2 to 22.9 m) and a sandstone layer from 22.9 m to 200 m depth. The resistivity of the sandstone aquifer here is higher, ranging from 50 to 150 Ωm, and is identified as an unconfined aquifer above a shale layer. Below 100.1 m, a confined aquifer is found beneath the shale layer, with resistivity values exceeding 100 Ωm. The correlation between the VES points at the Golf Course and Serayu-Citanduy Road shows continuity between the aquifer systems despite variations in thickness. These findings provide new insights into the hydrogeology of Tanah Merah and highlight the importance of groundwater management strategies for sustainable water use in North Samarinda District.
Characteristics Of Saddang River Sand, Pinrang Regency, South Sulawesi, Indonesia Based On Grain Gradation, Mud Content And Specific Gravity Arsyad; Arifin, Moch. Aris; Mukrim, Muh. Ihsan; Jamaluddin; Hamzah; Rauf, Abd.; Bauna, Ruslan; Reno; Nurhikmah; Abdul Latif
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.18019

Abstract

The research aims to determine the characteristics of sand grain gradation, mud content and specific gravity of Saddang River sand. Saddang river sand is the main source of sand used in construction activities in South Sulawesi and West Sulawesi. In order to ensure that Saddang river sand meets the quality standards used in the construction world, it is necessary to conduct research related to Gradation of grains, mud content and specific gravity of sand. These three factors are part of the factors that determine the quality of concrete and cement mixtures. The research was located at the Saddang River sand mine in Pincara Village, Patampanua subdistrict, Pinrang Regency, South Sulawesi, Indonesia. The research method uses field surveys and laboratory analysis to analyze the gradation of sand grains, mud content and specific gravity. The results of the sieve analysis show that the Saddang River sand is classified as gradation zone no. 4 or classified as fine sand based on the fine aggregate gradation table SNI 03-2834-2000 and ASTM C-33. The results of the analysis of the Saddang River sand mud content ranged from 2.233% to 2.250%, fulfilling SNI 03-4804-1998 which has been determined at a maximum of 5%. The specific gravity analysis show the average value of bulk specific gravity (2,489 gr/m3), dry specific gravity (2,524 gr/m3), and visible specific gravity (2,600 gr/m3). meets SNI 03-1970-2008 standards ranging from < 1.6 gr/m3 to 3.2 gr/m3. The ater absorption in fine aggregate ranged from 1.5% to 3.8%, meeting SNI 03-1970-2008 with a maximum of 5%.
Assessing the Carbon Sequestration Potential of Ultramafic Rocks in the Kolaka Ophiolite Complex, Southheastern Sulawesi: A Petrographic, Geochemical, and Mineralogical Study Syahrul; La Ode Dzakir; Riska; Rio Irhan Mais Cendra jaya; Masri
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.19484

Abstract

Climate change has prompted significant global interest in carbon sequestration technologies, particularly using geological formations. This study investigates the potential of ultramafic rocks from the Kolaka Ophiolite Complex in Southeast Sulawesi for carbon sequestration, focusing on the mineralogical, petrographic, and geochemical characteristics that enhance their reactivity with CO₂. The research involved petrographic and mineragraphic analyses of 15 peridotite samples, geochemical measurements via X-ray fluorescence (XRF), and mineral characterization using scanning electron microscopy (SEM). The results revealed that Kolaka's ultramafic rocks, particularly harzburgite and lherzolite, exhibit moderate to high serpentinization, which enhances their reactivity with CO₂. Key minerals such as olivine, pyroxene, and serpentine, rich in magnesium, calcium, and iron oxides, demonstrate significant potential for mineral carbonation. Secondary minerals like magnesite and brucite were identified as products of carbonation, reinforcing the rocks' ability to act as carbon sinks. The discussion highlights that serpentinized peridotites are more effective for carbon sequestration than unaltered ones due to increased mineral reactivity. The presence of magnesite and Cr-Fe-rich carbonates, alongside serpentine veins, indicates that fluid-rock interactions have promoted ongoing carbonation processes. The Kolaka ultramafic rocks, therefore, hold strong potential for long-term carbon storage, offering a promising solution for reducing atmospheric CO₂ levels
Quantifying hydrothermal alteration Derived by remote sensing technique in Tompaso Geothermal Field (North Sulawesi Indonesia) Bariadi, Laode; Saepuloh, Asep
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.19515

Abstract

Quantifying hydrothermal alteration is important for geothermal system modeling, which aims to understand fluid dynamics, soil distribution, and energy production potential in the geothermal exploration areas as well as the economic mineral potential at the Tompaso area, North Sulawesi. Alteration processes can result in weathering degradation of rock strength. The Sentinel-2 color composite of band ratio R,G,B for band (4/2), band (8A/11), and band (11/12) reveals the distribution of iron oxides, ferromagnesian silicates, and clay minerals. These alteration minerals are characterized by the presence of clay minerals such as chlorite (Chl), epidote (Ep), quartz (Qs), sericite (Sr), alunite (Al), and illite (ill), which formed at temperatures of 110-300⁰C and fluid pH ranging from 3-5 (acidic in nature). The process of geological phenomena in the form of structures that open fluid pathways affects changes in the physical and chemical composition of the host rocks. The host rock and hydrothermal interactions influence to the fertility as well as vegetation conditions. Therefore, the soil and vegetation conditions were used to trace the occurrence of hydrothermal alteration minerals. A band ratio of the chlorophyll spectrum captured by the red edge vegetation index (REVI) is used as a basis for mapping vegetation stress related to the occurrence of the alteration minerals. The insitu chlorophyll measurements of ferns were used to verify the REVI in the study area. The REVI image shows anomalous vegetation stress corresponding to alteration minerals. To quantify the detection correctness, the SPAD soil measurements were conducted to pinpoint vegetation stress caused by the existence of hydrothermal alteration minerals. Correlation between alteration minerals to these two variables REVI and fern SPAD. The determination coefficient (R2) between REVI and alteration minerals then the alteration minerals and SPAD chlorophyll measurements were archived linearly about 0.7. We have also obtained a linear correlation with positively gradient between alteration zones of argillic and propylitic presented by occurrences of kaolinite, sericite, chlorite, epidote, and quartz minerals in rock samples, to stressed vegetations.
Geotechnical Insights into Andesite Quarry Slope Stability: A Case Study from Desa Usul, Indragiri Hulu, Riau, Indonesia Diondo Simatupang, Ismon; Kausarian, Husnul; Elizar
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 04 (2024): JGEET Vol 09 No 04 : December (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.04.20074

Abstract

This study investigates the slope stability of andesite quarries from a geotechnical and civil engineering perspective, emphasizing geological, geotechnical, and civil engineering factors influencing stability and their implications for mining and infrastructure operations. Andesite is widely used as an aggregate material in construction due to its compliance with Indonesian National Standards (SNI) for aggregate quality. Through comprehensive geotechnical assessments and slope stability analyses, the research concludes that the Andesite quarry slopes exhibit high levels of stability, supporting safe mining practices. Calculated Factor of Safety (FS) values consistently exceed safety thresholds, indicating favorable conditions for resource extraction. Slope simulations using Slide and Geoslope applications confirm the robustness of the slopes, with Safety Factor (FS) values ranging from 1.601 to 2.614. The implementation of open-cut methods, supported by meticulous slope design and blasting techniques, enhances safety and efficiency in mining operations. The study underscores the feasibility and safety of mining activities in the researched area, contributing to the advancement of mining engineering practices in volcaniclastic environments. Effective slope management strategies are essential for ensuring sustainable resource extraction while prioritizing worker safety and environmental integrity.
Potential Hazards of Erosion and Conservation Strategis in the Sail Sub-Watershed, Pekanbaru City, Riau Province, Indonesia Ramsof, Rani Amalia; Zakaria, Zufialdi; Irvan Sophian; Arie Afriadi
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.20795

Abstract

Erosion in watershed area can be triggered by changes in land use, human activities, and cause increased sedimentation, flood risk, and environmental degradation, effective conservation measures are necessary to ensure its impact is reduced. To determine potential erosion hazards in Sail Sub-Watershed the method used is Revised Universal Soil Loss Equation (RUSLE), parameters include rainfall, soil erodibility, slope length and slope, and land cover and soil conservation. In addition, an analysis of permissible erosion and an erosion hazard index were carried out. The research results show that the level of erosion hazard is influenced by the value of the rain erosivity factor (R) of 2678.98 m with the wet rainfall classification. The soil erodibility factor (K) is dominated by cambisol soil types with a K value of 0.28 and podzolic with a K value of 0.20. The length and slope (LS) factors are dominated by flat topography with an LS value of 0.4. Meanwhile, the land cover and soil conservation (CP) factors mostly consist of open land, shrubs and plantations that have not received any conservation efforts. The erosion hazard level (TBE) in  ranges from moderate to very severe, indicating that the areas affected by erosion are predominantly due to the use of open land, such as at station 16. The erosion hazard index (EHI) varies from moderate to very high. As a land conservation effort, vegetative methods in the form of reforestation are recommended for open land, while terrace walls or wet masonry are recommended for agricultural land and plantations. In addition, conservation structures such as retaining walls, bench terraces, or stairs can be implemented on plantation land to reduce the danger of erosion.
Hydrogeochemical Characterization and Quality Assessment of Groundwater in Rumbai District, Pekanbaru: Implications for Sustainable Water Management Ulfa Yusti; Yoseph, Boy; Hadi Hidayat; Septio, Ghenady
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.20942

Abstract

Groundwater is a vital source of clean water, valued for its high quality, abundant reserves, accessibility, and cost-effectiveness. As a result, effective management is crucial to ensure compliance with relevant standards. However, rapid population growth and increasing human activities have raised the demand for groundwater, which, in turn, impacts its characteristics. These changes can include altered composition, imbalances in autotrophic nutrients, contamination by heavy metals, and seawater intrusion. The availability of reliable groundwater quality data is essential for sustainable development in Pekanbaru City. This research aims to assess the groundwater quality in Rumbai District, explore its hydrogeochemical characteristics, and analyze the distribution of bicarbonate based on physical and chemical parameters. This study is particularly significant as there has been no previous hydrogeochemical analysis of the peatland areas in this region. The research method involves a comprehensive analysis of groundwater conditions, focusing on both physical and chemical factors. The physical condition analysis includes the organoleptic assessment of smell to detect unusual odors, color inspection, and temperature. Total Dissolved Solids (TDS) and electrical conductivity (EC) levels are also measured, providing insight into the water's biological and chemical characteristics. The chemical condition analysis includes pH testing to assess the water's acidity or alkalinity, along with major ion analysis to evaluate the concentrations of cations like calcium, magnesium, sodium, and potassium, and anions such as chloride, sulfate, bicarbonate, and nitrate. For accurate results, proper sample collection using sterilized containers is critical, along with the use of replicates and instrument calibration. Data interpretation involves comparing the findings to established water quality standards, such as those from the World Health Organization (WHO), to assess the groundwater's suitability for consumption or other uses. Based on chemical properties standardized by the Ministry of Health, such as the pH value of water still meets the standard of 7.7, Na+ with an average of all stations is 20.49 Mg/l which still meets the standard, HCO3- with an average of all stations is 59.63 Mg/l l still meets the standard, CI- with the average of all stations is 19.75 Mg/l still meets the standard, SO42- with the average of all stations is 2.81 Mg/l still meets the standard. At ST-01, ST-02, ST-03, ST-04, ST-05, and ST-09, the groundwater meets the standards based on chemical analysis but does not meet the standards based on physical analysis. Meanwhile, ST-06, ST-07, ST-08, and ST-09 meet the required water quality standards based on both physical and chemical standards. Therefore, at ST-01, ST-02, ST-03, ST-04, ST-05, and ST-09, the groundwater is not suitable for use. So based on its chemical properties it still meets quality standards but this groundwater is influenced by the physical properties of groundwater which is not suitable for use at several stations. This study identifies four types of groundwater characteristics: the Na(K)-SO4 type, found at stations ST-01, ST-02, ST-04, ST-07, and ST-04; the Na(K)-HCO3 type, found at station ST-03; the Ca(Mg)-HCO3 type, found at stations ST-05, ST-06, and ST-08; and the Ca(Mg)-SO4 type, found at station ST-10.
Comparative Study Of Vehicle Noise Levels at Different Times In An Urban Area: A Case Study Hasan, Indra; Albafery; Mulyadi, Agus
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.21474

Abstract

Urban areas are increasingly facing the problem of noise pollution, which can significantly affect their residents' quality of life, health, and productivity. Noise caused by road traffic is one of the main contributors to this issue, particularly in cities with high traffic volumes. Despite its impact, the relationship between traffic patterns and noise levels at different times of the day remains underexplored. This study aims to investigate the variation in vehicle noise levels at different times of the day on Jalan Jenderal Sudirman in Pekanbaru City, Indonesia. The primary objective is to assess how vehicles' volume and speed contribute to noise pollution changes during peak and off-peak hours. The study was conducted by measuring the noise levels at three distinct time intervals: 07:00-09:00 GMT (morning), 11:00-13:00 GMT (daytime), and 15:00-18:00 GMT (afternoon/evening). These periods were selected to reflect the variation in traffic density and activity during the day. The data were analyzed using the ANOVA test to determine whether there were any significant differences in the noise levels across the different time intervals. The results showed that the average noise levels were similar during all three periods, with no statistically significant differences detected. The findings suggest that traffic volume and vehicle speed consistently impact noise pollution throughout the day. This study highlights the importance of managing traffic flow and vehicle speed to mitigate noise pollution in urban environments. The results also provide valuable insights for local authorities to develop policies to reduce noise pollution and improve the overall quality of life for residents in Pekanbaru.
Geoengineering Characteristics of Site Soil Profile Analysis using Cone Penetration Tests Data Munirwan, Reza Pahlevi; Devi Sundary; Munirwansyah; Banta Chairullah; Jaya, Ramadhansyah Putra
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.9337

Abstract

Classification and stratification of subsurface soils are critical aspects for a geotechnical site assessment to design and construct geotechnical structures. A probabilistic interpretation method is devised to adequately account for the uncertainty associated with subsurface soil categorization and stratification based on cone penetration test (CPT) data. CPT data is frequently directly employed in the construction of deep and shallow foundations, as well as a range of other purposes. It is advantageous to employ CPT data to create stratigraphic profiles as well, in order to generate more cost-effective designs. The method is demonstrated using CPT data from several locations in the Banda Aceh area. From limited CPT data, the approach accurately identifies subsurface soils in a 2D vertical cross-section. The objectives of this paper are to utilize CPT data to examine the soil profile in Banda Aceh, Indonesia. Additionally, soil parameters must be evaluated to obtain a better knowledge of Banda Aceh's soil conditions. The evaluation indicates that the average depth of the hard layer in the Kuta Alam District ranges from 5 to 8 meters beneath the ground surface. However, at certain locations, the hard soil stratum reaches a depth exceeding 18 meters. The findings are expected to be one source for determining the preliminary soil profile condition in Banda Aceh before doing additional soil investigation for construction design requirements.

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