scholarly journals Analysis of the Sub-Surface Distribution of Graphite Minerals Using the Geoelectrical Resistivity Method in the Sabilambo Village, Kolaka Regency, Southeast Sulawesi Province

2019 ◽  
Vol 4 (3) ◽  
pp. 149
Author(s):  
La Hamimu ◽  
L O Ngkoimani ◽  
Jahidin Jahidin ◽  
Suryawan Asfar ◽  
Usmardin Usmardin
Keyword(s):  
Ground Level ◽  
Mineral Deposits ◽  
Distribution Area ◽  
Metamorphic Complex ◽  
Research Activity ◽  
Surface Distribution ◽  
Resistivity Method ◽  
Rock Formations ◽  
Geoelectrical Resistivity ◽  
Rock Complex

Southeast Sulawesi Province is one of the regions in Indonesia that has abundant mineral resources, the availability of several types of minerals is strongly influenced by the diversity of rock formations that make up the area. The metamorphic complex is one of the rock formations in the Southeast Sulawesi Province. Where the rock complex is divided into 2 (two), namely: Pompangeo Complex and Mekongga Complex, the distribution area of this metamorphic rock is estimated around 50% of the total land area of Southeast Sulawesi Province. This rock complex is very possible to contain mineral deposits, one of which is graphite mineral deposits. However, the problem that is now is the identification of the potential for subsurface distribution of graphite excavated material has not been carried out. Therefore, this research was conducted to determine the potential for subsurface distribution of graphite mineral deposits is using geoelectrical resistivity method where is using Wenner-Schlumberger configuration, this research activity was conducted in the Sabilambo Village in Kolaka Regency, where most of the research area is metamorphic complex. Based on the result of the resistivity analysis, subsurface distribution of graphite mineral deposits in the study area can be found on the surface to a depth of 33.5 meters below ground level, with layer thickness between 1.25 to 27.77 meters and has a resistivity value of 14.9 Ωm – 86.1 Ωm.

scholarly journals Identification of Aquifer in the MIPA Faculty - University of Jember Using 1D Geoelectrical Resistivity Method with Schlumberger Array

2020 ◽  
Vol 21 (2) ◽  
pp. 123
Author(s):  
Bayu Buwana ◽  
Nurul Priyantari ◽  
Supriyadi Supriyadi
Keyword(s):  
Volcanic Rocks ◽  
Natural Sciences ◽  
Subsurface Structures ◽  
Resistivity Method ◽  
Academic Activities ◽  
Geoelectric Resistivity ◽  
Geoelectrical Resistivity ◽  
Resistivity Log ◽  
The University ◽  
Schlumberger Array

Faculty of Mathematics and Natural Sciences University of Jember located in Sumbersari District with lithological conditions in the form of volcanic rocks, lithosol soils, and regosol soils that are capable of absorbing water and potentially as aquifers. In point of fact, in the campus zona of the University of Jember including in the Faculty of Mathematics and Natural Sciences, there is always a shortage of freshwater for various academic and non-academic activities. Therefore, research needs to be conducted to assess the lithology of subsurface structures in the FMIPA zone so that the depth of groundwater layers and aquifer layers can be determined. The study was conducted using the Schlumberger array geoelectric resistivity method at 5 VES points. The results obtained in the form of resistivity log curves can be seen that at the five points VES has lithology in the form of clay, gravel, sandstone, and groundwater layer. Each VES point was identified the groundwater layer and some of them were identified as aquifers. The aquifer with the greatest thickness is found at point VES 2, which is to the west of the Baitul Ilmi Mosque, so it is recommended as the location of a new well.Keywords: lithology, aquifers, geoelectric resistivity method, groundwater.

scholarly journals Bioindicators in Air Quality Assessment

2018 ◽  
Vol 69 (11) ◽  
pp. 3238-3240 ◽  
Author(s):  
Andreea Cozea ◽  
Elena Bucur ◽  
Carol Blaziu Lehr ◽  
Luoana Florentina Pascu ◽  
Gheorghita Tanase
Keyword(s):  
Air Quality ◽  
Plant Species ◽  
Industrial Ecology ◽  
Higher Plants ◽  
Ground Level ◽  
Specific Response ◽  
Impact Measurement ◽  
Research Activity ◽  
Active Biomonitoring ◽  
Significant Difference

The study aims to assess the identification of the specific species of plants for selection of certain plant species and utilization of selected one�s in experimental biomonitoring studies.The purpose of the proposed study was to develop and apply new techniques, methods and methodologies for air quality assessing in the context of climate change and updating of international environmental studys. The novelty of the active biomonitoring method using plants is an innovative research area for the National Research and Development Institute for Industrial Ecology in terms of the use of sentinel species. The first stage research activity was aimed to identify plant species with specific response to certain environmental pollutants, in our case, ozone. By exposing higher plants (from the Solanaceae family) to various environmental conditions, a direct impact measurement of ground-level ozone was considered - as an indicator of environmental pollution (air) - there was a significant difference relationship between soil level ozone variation and foliar necrosis.

scholarly journals An investigation of groundwater condition by geoelectrical resistivity method: A case study in Bengalon, East Kutai, East Kalimantan Province Indonesia

PROMINE ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 45-54
Author(s):  
Shalaho Dina Devy ◽  
Ibnu Hasyim
Keyword(s):  
Sea Water ◽  
Shallow Groundwater ◽  
Groundwater Potential ◽  
Residential Areas ◽  
Alluvial Deposits ◽  
Resistivity Method ◽  
East Kalimantan ◽  
Groundwater Condition ◽  
Geoelectrical Resistivity

Bengalon is located in East Kutai Regency, East Kalimantan Province. Bengalon is included in the Samarinda-Bontang groundwater basin. The development of agricultural and industrial areas, followed by an increase in residential areas, will cause an increase in the water demand. This study aims to determine the groundwater potential of alluvial areas using the resistivity geoelectric method. The resistivity survey resulted in subsurface lithology, shallow groundwater conditions in the form of depth, thickness, and location of the aquifer as well as the type of groundwater quality. There are 10 locations for geoelectric data collection using the 2D geoelectric method. The results showed that the majority of the aquifers were alluvial deposits consisting of sand and sandy clay. The resistance indicating groundwater is 1 - 4 Ω m, at a depth of 10 – 50 m with a thickness varying from 10 – 20 m which has been dominated by sand. The presence of sea water intrusion in aquifers causes the quality of groundwater to tend to be brackish because the research location is in a swamp area bordering the coast.

scholarly journals IDENTIFIKASI PATAHAN MANADO DENGAN MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI WENNER DI KOTA MANADO

2015 ◽  
Vol 17 (1) ◽  
pp. 159
Author(s):  
Gratia Sutriska Huraju ◽  
As’ari As’ari ◽  
Seni H.J. Tongkukut
Keyword(s):  
Data Processing ◽  
Second Line ◽  
Line Position ◽  
First Line ◽  
Resistivity Method ◽  
North Sulawesi ◽  
Geoelectrical Resistivity

IDENTIFIKASI PATAHAN MANADO DENGAN MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI WENNER DI KOTA MANADOABSTRAK Identifikasi keberadaan patahan Manado, Sulawesi Utara di Jalan Ringroad Kelurahan Malendeng Kecamatan Paaldua telah dilakukan penelitian menggunakan metode geolistrik tahanan jenis konfigurasi Wenner pada satu lokasi dengan dua lintasan pengukuran dengan panjang bentangan masing-masing 400 meter dengan spasi elektroda 20 meter. Data diolah dengan menggunakan software RES2DINV. Diperoleh hasil dari kedua lintasan dengan nilai resistivitas pada lintasan 1 bernilai  (ρ < 311,5 Ωm) dan pada lintasan 2 nilai resistivitas bernilai (ρ < 98,8 Ωm). Nilai resistivitas dengan (ρ < 311,5 Ωm) pada lintasan 1, dan nilai resistivitas (ρ < 98,8 Ωm) pada lintasan 2 menunjukkan rekahan pada lintasan 1 terdapat pada titik bentangan ke 220-240 meter dengan kedalaman 37 meter dan terdapat pada titik ke 280-300 meter dengan kedalaman 15 meter. Sedangkan pada lintasan 2 rekahan  terdapat pada titik ke 240-260 meter dengan kedalaman 15 meter. Kata Kunci : Patahan Manado, Metode geolistrik, Konfigurasi Wenner, Software RES2DINV. IDENTIFICATION OF MANADO FAULT BY USING GEOLECTRICAL METHOD RESISTIVITY CONFIGURATION OF WENNER AT MANADO ABSTRACT Identification of existence Manado fault, North Sulawesi at Ringroad Street, in Malendeng Village subdistrict Paaldua has been done research by using geoelectrical resistivity method configuration of Wenner in one located with measurement in two lines each others 400 meters in space electrode is 20 meters. Data processing is done by using RES2DINV software. resistivity value in the two lines show that for the first line (ρ 311,5 Ωm) and second line (ρ 98,8 Ωm). This  resistivity in the first line (ρ 311,5 Ωm) and second line (ρ 98,8 Ωm) is founded already joint in first line at point 220-240 meters with depth is 37 meters and at   point 280-300 meters with depth is 15 meters and second line position of joint stays at point 240-260  with depth is 15 meters. Keywords : Manado fault, Geoelectrical method, Wenner configuration, RES2DINV software.

scholarly journals Inelastic analysis of the imperial county services building

1983 ◽  
Vol 16 (2) ◽  
pp. 141-155
Author(s):  
Peter J. Moss ◽  
Athol J. Carr ◽  
Gerard C. Pardeon
Keyword(s):  
Structural Damage ◽  
Shear Walls ◽  
Ground Level ◽  
Transverse Component ◽  
Research Activity ◽  
Inelastic Analysis ◽  
Inelastic Behaviour ◽  
Time Histories ◽  
Analytical Time ◽  
County Services

Full scale ambient and forced vibration dynamic measurements
of buildings have become a continuing research activity over the last twenty years or so. One building that has been studied in such a
way was the Imperial County Services Building which was also instrumented with a number of seismographs. On the 15 October 1979, this building suffered major structural damage in a powerful earthquake. This paper briefly describes the ICSB and the damage that occurred, before discussing the computer models that were analysed to study the likely inelastic behaviour of the building. Though the analytical time histories do not show very good agreement with the seismograph results, they do show that the transverse component of the earthquake had a significant effect on the behaviour of the building on account of a non-symmetric arrangement of the ground floor shear walls in the transverse direction. Another factor was the placing of a ground
level slab above the detailed column hinges.

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