Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Journal of Geoscience, Engineering, Environment, and Technology

JGEET
Website

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.

Arjuna Subject : -

Articles 551 Documents

13 14 15 16 17

Hydrochemistry and Characteristics of Groundwater: Case Study Water Contamination at Citarum River Upstream Mohamad Sapari Dwi Hadian; T Yan Waliana; Nana Sulaksana; Dewandra Bagus Eka Putra; Yuniarti Yuskar
Journal of Geoscience, Engineering, Environment, and Technology Vol. 2 No. 4 (2017): JGEET Vol 02 No 04 : December (2017)
Publisher : UIR PRESS

Rancaekek and Sayang area, West Java, are the area where many industrial factories are located.Thus, the region becomes the targeted destination for industrial development.The population in the area is rising due to the growth of industries causing the regional development becomes uncontrollable. In addition, the constant increment of waste and also poor-coordinated disposal systems may result in groundwater contamination in the areas. The rapid growth of the area increase the need for groundwater as well as the need for more research about contamination at Rancaekek and Sayang. The research aims to explore the spread of groundwater contamination in the area. The research method is carried out based on the analysis of Geological Mapping, Hydrogeological Mapping and chemical characteristics of the groundwater in the area. Chemical analyses of the groundwater were conducted through laboratory test of groundwater samples at specific spots of dug wells. The lab test results were further analyzed to determine the contamination zone. The findings reveal that the distribution of contamination in the area follow the shallow ground water flow patterns, the water contamination contains heavy metal and there is degradation of soil fertility. The findings suggest the stakeholders to delineate the contaminated area, and increase the dissemination of environmental awareness.

Characteristics of Coal and Cleat Attributes in Ulak Lebar and Surroundings Area, Lahat Regency, South Sumatra Mutia Armilia Rahmawati; Siska Linda Sari; Alan Triyoga; Idar wati
Journal of Geoscience, Engineering, Environment, and Technology Vol. 3 No. 2 (2018): JGEET Vol 03 No 02 : June (2018)
Publisher : UIR PRESS

The research conducted in Ulak Lebar Area, Lahat Regency, South Sumatra. The focus of this study is on the Muara Enim Formation as it is known as the main coal-bearing formation in South Sumatra Basin. The research is aimed to determine the characteristics of coal based on its physical properties, also knowing the cleat development at the coal seam in the research area. The methods used such as literature study, field observation and laboratory test. Field observations included the observations of coal megascopic appearance and cleat attributes analysis such as the measurements of cleat orientation, aperture, spacing and length. The analysis result of cleat at LP 2A and LP 2B shows a relatively similar such as spacing value ranged between 6 - 9 cm and 5.5 – 8.6 cm while the aperture value ranged from 0.05 - 0.2 cm, and 0.05 - 0.25 cm, whereas at LP 67 the spacing value ranged from 1.5 to 3.3 cm and the aperture valued between 0.1 - 0.3 cm. A rather significant difference between the cleat spacing values of LP 67 towards both previous observation stations is indicated by the geological processes occurred during the coalification process thus affected the development of cleats in coal, the geology structure control is characterized by a relatively large aperture and smaller spacing values. The laboratory test conducted is maceral analysis, shows the coal in the research area is dominantly composed of vitrinite (74,8%) and the vitrinite reflectance value is 0,40 indicating the coal classified as sub-bituminous rank.

The Coherency and Correlation between Sea Surface Temperature and Wind Velocity in Malacca Strait: Cross Wavelet Transform and Wavelet Coherency Application Hanah Khoirunnisa; Ulung Jantama Wisha; Muhammad Zainuddin Lubis
Journal of Geoscience, Engineering, Environment, and Technology Vol. 2 No. 3 (2017): JGEET Vol 02 No 03 : September (2017)
Publisher : UIR PRESS

This study tried to observe the correlation and coherency between sea surface temperature (SST) and wind velocity in the Malacca Strait at the year of 2015. The SST and wind velocity data with 6 hours interval step have been used in this study. S-Transform, the Cross Wavelet Transform, and the Wavelet Coherency were applied to observe the influence of the variation of sea surface temperature to the wind velocity in Malacca Strait. These methods could produce the phase lag and the time of occurrence between them. S-Transform was used to show the spectrum energy of the sea surface temperature variation. The strongest correlation between them has the period of 32 days during July to August and October to November at each point with significance level of 95 %. The coherency of them has the range of 4 to 64 days at each point. The last result is the spectrum energy of SST variation that has the period of 5 to 50 days at each point. It was similar to the result of the correlation and coherence period between the wind velocity and the SST data

Macerals Analysis Seam M2 Muaraenim Formation, : Implication Toward Coal Facies and Coal Rank in Kendi Hill, South Sumatra Yonathan Mangatur Rajagukguk; Stevanus Nalendra Jati
Journal of Geoscience, Engineering, Environment, and Technology Vol. 3 No. 2 (2018): JGEET Vol 03 No 02 : June (2018)
Publisher : UIR PRESS

The Muaraenim Formation is a coal bearing formation in South Sumatra Basin of the Late Miocene – Pliocene. Shell (1978) divides this formation based on coal seam content are: M1, M2, M3, and M4. Coal seam in this area include in seam M2 member, with the general characteristics of the presence of silicified coal on the roof and floor of coal seams as a marker. The administration of the research area is located in east Kendi Hill, South Sumatra. The Kendi Hill is composed of adesite igneous rocks that intruded Muaraenim Formation in unconformity at the time of Pleistocene. This study aims to determine the environment of coal depositional based on maceral analysis and determine the factors influence the physical characteristics of coal seams in Kendi Hill. Data that has been obtained from the field, then conducted a selection process. The number of samples analyzed were nine sample based on near and far to the Kendi Hill spread from the southern, central, and northern of the location. The result of the analysis will display the maceral diagram. Megascopically, coal seam in the Kendi Hill are black, dull with bright, uneven – subchoncoidal, blackish brown in streak, have a pyrite and resin. The thickness of the coal seams ranges from 0,45 to 14 meters. Based on the maceral analysis, the coal seam in the Muaraenim Formation is composed dominated by vitrinite, then liptinite, inertinite and mineral matter pyrite (1,6-6,6%). Vitrinite reflectance of coal in the research area ranges from (0,37-0,48%) that included to the Sub bituminous – High Volatile Bituminous C. From the results of Tissue Preservation Index and Gelification Index value indicated that the environment of coal depositional in the research area was a limnic to wet forest swamp. Whereas the deposition of the Muaraenim Formation in deltaic environment (Transitional lower delta plain).

Pollen and Foraminifera Approaches to Identify Sediment Sources In The River Mouth Mahakam East Kalimantan Winantris Winantris; Lia Jurnaliah
Journal of Geoscience, Engineering, Environment, and Technology Vol. 2 No. 4 (2017): JGEET Vol 02 No 04 : December (2017)
Publisher : UIR PRESS

The central role of Mahakam River in the construction of Mahakam Delta is to supply sediment from terrestrial to the river mouth. The river upstream comes from Mount Camaru and the downstream part terminate at Makasar Strait. The surrounding area of the river is overgrown by wet tropical flora that produces pollen. The existence pollen in river sediments as an indicator that sediment came from terrestrial, and foraminifera as an indicator that sediment came from marine. The ratio changes of pollen to foraminifera show that there were differences of sediment source supply. The study was conducted at the river mouth. A shallow core, 200 cm depth, composed of sand and mud and sandy mud, from it taken vertically 11 samples to be analyzed pollen and foraminifera. Sample preparation was using standard methods acetolysis. Meanwhile, sample preparation of foraminifera using Hydrogen Peroxide method. Pollen found at all samples, but foraminifera only found in 8 samples. The data indicating that sedimentation process in the mouth of a river not only gets sediment supplies from terrestrial but also from marine. The quantity of pollen and foraminifera varies vertically. The frequency of pollen much higher than foraminifera that indicates of source sediments dominance came from terrestrial which carried by Mahakam river current. Sonneratia caseolaris pollen continuously found in all samples. Stictogongylus vandiemensis is species foraminifera the most common that followed by Ramulina confossa, both of them come from the sea particularly from the shallow sea.

Structural Geology Analysis In A Disaster-Prone Of Slope Failure, Merangin Village, Kuok District, Kampar Regency, Riau Province Yuniarti Yuskar; Dewandra Bagus Eka Putra; Adi Suryadi; Tiggi Choanji; Catur Cahyaningsih
Journal of Geoscience, Engineering, Environment, and Technology Vol. 2 No. 4 (2017): JGEET Vol 02 No 04 : December (2017)
Publisher : UIR PRESS

The geological disaster of landslide has occurred in Merangin Village, Kuok Subdistrict, Kampar Regency, Riau Province which located exactly in the national road of Riau - West Sumatra at Km 91. Based on the occurrence of landslide, this research was conducted to study geological structure and engineering geology to determine the main factors causing landslides. Based on measurement of the structural geology found on research area, there were fractures, faults and fold rocks which having trend of stress N 2380 E, plunge 60, trending NE-SW direction. Several faults that found was normal faults directing N 2000 E with dip 200 trending from northeast-southwest and reverse fault impinging N 550 E with dip 550, pitch 200 trending to the northeast. Fold structures showing azimuth N 2010 E trending southeast-northwest. From geological engineering analysis, the results of scan line at 6 sites that have RQD value ranges 9.4% - 78.7 % with discontinuity spacing 4 - 20 cm. So, It can be concluded that the formed structure was influenced by the extensive northeast-southwest tectonic phase, then continued through north-south tectonic phase, and ended by a tectonic period with directing from northeast-southwest. Rock Mass Rating classification showing value 62 – 76, Which also resulted that rocks in the study area have weathered on the outside but still in good condition (good rock). However, This condition of structure has caused the formation rocks producing weak zone that became one cause of the occurrence of landslides.

Sea Surface Temperature and Wind Velocity in Batam Waters Its Relation to Indian Ocean Dipole (IOD) Muhammad Zainuddin Lubis; Wenang Anurogo; Husnul Kausarian; Ganda Surya; Tiggi Choanji
Journal of Geoscience, Engineering, Environment, and Technology Vol. 2 No. 4 (2017): JGEET Vol 02 No 04 : December (2017)
Publisher : UIR PRESS

This study aimed to observe the characteristics of sea surface temperature (SST) and wind velocity and its relation with the Indian Ocean Dipole (IOD) in the waters of Batam. The data used in this study were the SST datasets and the wind speed of 2016 in the waters of Batam. The method used in this research were the visual analysis using the data ocean view (ODV) to observe at the spatial and temporal distribution of the SST and the wind speed in Batam waters at different seasons. The next method is a fast Fourier transform (FFT). The earlier monsoon season that occurred in April has the highest wind speed with the value of 3.9 MS ** - 1 for components U. As for the V, the component has the highest value of -3.6 MS ** - 1. The SST Batam observed high in April occurred on 19-04-2016 with a value of 304.2 ° K (31.05 ° C). West monsoon winds that occurred in January has the highest wind speed with a value of 4.5 MS ** - 1 for components U. As for the V, the component has the highest value of 5.2 MS ** - 1 in the waters of Batam. The highest SST in Batam was occurred in January on 19-01-2016 with a value of 302.8 ° K (29.65 ° C). Based on the results of the FFT, wind speed and SST in the waters of the Island has a dominant 6-month period (semiannual).

Geoelectricity Data Analysis For Identification The Aquifer Configuration In Bandorasawetan, Cilimus, Kuningan, West Java Province Muhammad Kurniawan Alfadli; Nanda Natasia
Journal of Geoscience, Engineering, Environment, and Technology Vol. 2 No. 4 (2017): JGEET Vol 02 No 04 : December (2017)
Publisher : UIR PRESS

Indonesian water consumption is influenced by the people growth. One of Water consumption fulfilment by groundwater aquifer. Bandorasawetan is one of the areas which predicted have proper potential due to located in East of Mt. Ceremai that predicted recharge area. Based on regional geological data, Bandorasawetan is an undifferentiated young volcanic product which consists of lava, breccia, lapilli, and tuffaceous sand. Geophysics method for groundwater prediction is 2-D geoelectrical with Wenner – Schlumberger configuration. The result of acquisition is obtained resistivity value from 0 - >1000 Ohm. m. Interpretation from data distribution is consist of two resistivity range that describes lithology on the research area, such as: 0 – 150 Ohm.m contributed as aquiqlud with tuffaceous sand lithology and > 150 Ohm.m interpreted as volcanic breccia lithology. Volcanic breccia has a role as aquifer in study area, the conclusion is distribution of resistivity value with range > 150 Ohm.m be the reference to developing groundwater resource in study area. Depth of aquifer is varying, deeper to the east. In Line – 1, depth of the aquifer is 48 meters and in Line – 2, depth of aquifer be 60 meters.

Slope Stability Analysis Based on Type, Physical And Mechanical Properties Rock in Teluk Pandan District, East Kutai Regency, East Kalimantan Sujiman Kusnadi
Journal of Geoscience, Engineering, Environment, and Technology Vol. 2 No. 4 (2017): JGEET Vol 02 No 04 : December (2017)
Publisher : UIR PRESS

Research was located In Teluk Pandan District, East Kutai Regency, East Kalimantan Province. It’s aimed to determine the lithology in the research area and to find out how the amount of slope that will be a landslide at that location. The research conducted with the analysis of coring drilling results and then analyzed in the laboratory of rock mechanics to get the characteristic of physical and mechanical properties of the rocks. The data analysis using Hoek and Bray Method. The results showed that in the area study has a sedimentary rock lithology fine to medium detritus, such as claystone, siltstone and sandstone, as well as inserts are coal and shale. Based on the results of laboratory analysis of rock mechanics obtained density between 2,648 to 2,770. While the test results obtained value triaxial cohesion between (6.66 - 9:05) Kg / cm2, friction angle in between (37.19 - 44.08)o, cohesion residual (2.72 - 3.10) Kg / cm2, residual friction angle (27.22 - 32.44)o. While the direct shear test the cohesion of the summit between (6.66 - 9:05) Kg / cm2, friction angle in the cohesion peak (36.15 - 43.00)o, cohesion residual (2:22 to 3:10) Kg / cm2, friction angle in the cohesion residual (37.22 - 33.85)o. The simulation results stability of the slope stability Hoek and Bray using rockslide software, the result is that if the slope with a single slope stability, the stability of the slope is 60o, and if the slope with the stability of the slope overall stability of the slope is 48o.

Experimental Study to Reinforce The Weak Subgrade Soil For Low-Volume Roads by Coir Geotextile Mats Harindar Devavath; Shankar S
Journal of Geoscience, Engineering, Environment, and Technology Vol. 3 No. 1 (2018): JGEET Vol 03 No 01 : March (2018)
Publisher : UIR PRESS

The construction and maintenance of pavement over the weak subgrade soil become the challenging task to the pavement engineering. One of the major reasons of subgrade failure of pavement is weak subgrade. The weak subgrade soil noticed a Black Cotton (BC) soil. The BC soil subgrade poses several serious problems to the pavement such as rutting, fatigue, reflecting crack and undulation of the pavement. To minimize this problem of pavement, there are many conventional stabilization techniques were adopted and reported. But these techniques are not applied effectively into the pavement to stabilize the weak subgrade. To address this problem, to give the additional strength to the pavement geosynthetics are taken as alternate material for stabilization of pavement. In the present study, an attempt is made in the laboratory with four types of coir mats by using the fabricated mould. The study is conducted in the form of two-layer pavement system. The pavement model layer is prepared as subgrade and sub-base with BC soil and sandy gravel soil respectively. The prepared fabricated mould is tested by using the Wheel Tracking Test (WTT) under moving traffic loading condition. This study concluded that the suitable placement position and the types of coir mats can be affect the performance of the LVRs. It’s also noticed that the suitable coir mats can effectively reduce the deformation, so that it can be used over the weak subgrade to improve the performance of the LVRs.

Page 15 of 56 | Total Record : 551

13 14 15 16 17

Filter by Year

2016 2025

Filter By Issues

All Issue Vol. 10 No. 02 (2025): JGEET Vol 10 No 02 : June (2025) Vol. 10 No. 3 (2025): JGEET Vol 10 No 03 : September (2025) Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025) Vol. 9 No. 04 (2024): JGEET Vol 09 No 04 : December (2024) Vol. 9 No. 3 (2024): JGEET Vol 09 No 03 : September (2024) Vol. 9 No. 2 (2024): JGEET Vol 09 No 02 : June (2024) Vol. 9 No. 1 (2024): JGEET Vol 09 No 01 : March (2024) Vol. 8 No. 4 (2023): JGEET Vol 08 No 04 : December (2023) Vol. 8 No. 3 (2023): JGEET Vol 08 No 03 : September (2023) Vol. 8 No. 2 (2023): JGEET Vol 08 No 02 : June (2023) Vol. 8 No. 1 (2023): JGEET Vol 08 No 01 : March (2023) Vol. 8 No. 02-2 (2023): Special Issue from The 1st International Conference on Upstream Energy Techn Vol. 7 No. 4 (2022): JGEET Vol 07 No 04 : December (2022) Vol. 7 No. 3 (2022): JGEET Vol 07 No 03 : September (2022) Vol. 7 No. 2 (2022): JGEET Vol 07 No 02 : June (2022) Vol. 7 No. 1 (2022): JGEET Vol 07 No 01 : March (2022) Vol. 6 No. 4 (2021): JGEET Vol 06 No 04 : December (2021) Vol. 6 No. 3 (2021): JGEET Vol 06 No 03 : September (2021) Vol. 6 No. 2 (2021): JGEET Vol 06 No 02 : June (2021) Vol. 6 No. 1 (2021): JGEET Vol 06 No 01 : March (2021) Vol. 5 No. 4 (2020): JGEET Vol 05 No 04: December 2020 Vol. 5 No. 3 (2020): JGEET Vol 05 No 03 : September (2020) Vol. 5 No. 2 (2020): JGEET Vol 05 No 02 : June (2020) Vol. 5 No. 1 (2020): JGEET Vol 05 No 01: March 2020 Vol. 4 No. 4 (2019): JGEET Vol 04 No 04: December 2019 Vol. 4 No. 3 (2019): JGEET Vol 04 No 03 : September (2019) Vol. 4 No. 2 (2019): JGEET Vol 04 No 02 : June (2019) Vol 4 No 1 (2019): JGEET Vol 04 No 01 : March (2019) Vol. 4 No. 1 (2019): JGEET Vol 04 No 01 : March (2019) Vol. 4 No. 2-2 (2019): Special Edition (Geology, Geomorphology and Tectonics of India) Vol. 3 No. 4 (2018): JGEET Vol 03 No 04 : December (2018) Vol 3 No 4 (2018): JGEET Vol 03 No 04 : December (2018) Vol 3 No 3 (2018): JGEET Vol 03 No 03 : September (2018) Vol. 3 No. 3 (2018): JGEET Vol 03 No 03 : September (2018) Vol. 3 No. 2 (2018): JGEET Vol 03 No 02 : June (2018) Vol 3 No 2 (2018): JGEET Vol 03 No 02 : June (2018) Vol 3 No 1 (2018): JGEET Vol 03 No 01 : March (2018) Vol. 3 No. 1 (2018): JGEET Vol 03 No 01 : March (2018) Vol. 2 No. 4 (2017): JGEET Vol 02 No 04 : December (2017) Vol 2 No 4 (2017): JGEET Vol 02 No 04 : December (2017) Vol 2 No 3 (2017): JGEET Vol 02 No 03 : September (2017) Vol. 2 No. 3 (2017): JGEET Vol 02 No 03 : September (2017) Vol. 2 No. 2 (2017): JGEET Vol 02 No 02 : June (2017) Vol 2 No 2 (2017): JGEET Vol 02 No 02 : June (2017) Vol 2 No 1 (2017): JGEET Vol 02 No 01 : March (2017) Vol. 2 No. 1 (2017): JGEET Vol 02 No 01 : March (2017) Vol. 1 No. 1 (2016): JGEET Vol 01 No 01 : December (2016) Vol 1 No 1 (2016): JGEET Vol 01 No 01 : December (2016) More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Adi Suryadi

Contact Email
adisuryadi@eng.uir.ac.id

Phone
+62822 8389 6947

Journal Mail Official
jgeet@journal.uir.ac.id

Editorial Address
Jl. Kaharuddin Nasution No 113 Perhentian Marpoyan, Pekanbaru, Riau 28284

Location
Kota pekanbaru,

Riau

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Adi Suryadi

Contact Email adisuryadi@eng.uir.ac.id

Phone +62822 8389 6947

Journal Mail Official jgeet@journal.uir.ac.id

Editorial Address Jl. Kaharuddin Nasution No 113 Perhentian Marpoyan, Pekanbaru, Riau 28284

Location Kota pekanbaru, Riau INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Adi Suryadi

Contact Email
adisuryadi@eng.uir.ac.id

Phone
+62822 8389 6947

Journal Mail Official
jgeet@journal.uir.ac.id

Editorial Address
Jl. Kaharuddin Nasution No 113 Perhentian Marpoyan, Pekanbaru, Riau 28284

Location
Kota pekanbaru,

Riau

INDONESIA