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All Journal Jurnal Fisika FLUX INDONESIAN JOURNAL OF APPLIED PHYSICS International Journal of Active Learning
Budi Legowo
Jurusan Fisika, Fakultas MIPA
Astronomy Earth & Planetary Sciences Education Energy Materials Science & Nanotechnology Physics

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APLIKASI METODE GEOLISTRIK RESISTIVITAS KONFIGURASI DIPOLE-DIPOLE UNTUK IDENTIVIKASI POTENSI SEBARAN GALENA (PBS) DAERAH-X, KABUPATEN WONOGIRI Kinayung, Satria; Darsono, Darsono; Legowo, Budi
Jurnal Fisika FLUX Vol 11, No 2 (2014): Jurnal Fisika FLUX Edisi Agustus 2014
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v11i2.2676

Abstract

ABSTRAK. Telah dilakukan penelitian identifikasi potensi galena menggunakan metode geolistrik resistivitas konfigurasi dipole-dipole di Daerah-X, Kabupaten Wonogiri, Jawa Tengah. Pengukuran dilakukan dengan menggunakan alat Resistivity Meter OYO model 2119C McOHM-EL. Pengolahan  data  melalui  dua  tahapan  yaitu  dengan  menggunakan  software Res2Dinv  dan  RockWork.  Pengolahan inversi dengan software  Res2Dinv  menghasilkan penampang dua dimensi yang menunjukkan perbedaan resisitivitas batuan dengan perbedaan warna. Hasil pengolahan  software Res2Dinv  ini kemudian menjadi input pada Software Rockwork  sehingga  diketahui pola sebaran galena. Dari hasil pemodelan terdeteksi sebaran galena pada rentang lintasan 240 meter hingga 480 meter kedalaman 20 meter dengan nilai resistivitas sebesar 5-20 Ωm. Sebaran galena juga dimodelkan memanjang dari lintasan pertama sampai lintasan ketiga sepanjang 150 meter. Batuan lain yang terdapat pada lintasan antara lain andesit dengan resistivitas 75-200 Ωm, breksi dengan resistivitas 200-500 Ωm, batuan basal dengan 1.000-2.000 Ωm. Batuan basal juga banyak ditemukan dalam bentuk bongkahan pada pada semua lintasan. Kata Kunci: Galena, Resistivitas, Dipole-dipole, Wonogiri
PEMETAAN KETEBALAN LAPISAN PENUTUP BATU GAMPING BAHAN BAKU SEMEN MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI SCHLUMBERGER Saputro, Setiyawan Adi; Darsono, Darsono; Legowo, Budi
Jurnal Fisika FLUX Vol 11, No 2 (2014): Jurnal Fisika FLUX Edisi Agustus 2014
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v11i2.2680

Abstract

ABSTRAK. Penelitian geolistrik resistivitas untuk mengetahui struktur bawah permukaan serta kedalaman dari batu gamping di Daerah Paciran Kabupaten Rembang Jawa Tengah telah dilakukan menggunakan konfigurasi Schlumberger. Pengambilan data sebanyak sembilan belas titik sounding dengan bentangan AB/2 sejauh 150 m. Peralatan yang digunakan diantaranya yaitu seperangkat resistivitymeter OYO MODEL 2119C MCOHM-EL. Pertama pengolahan data yaitu menggunakan software IP2Win untuk mengetahui kedalaman dan ketebalan lapisan secara vertikal. Kedua, hasil interpretasi VES menjadi masukan software RockWork 14 dalam membuat cross section. Hasilnya menunjukan terdeteksi 3 lapisan batuan yang diduga sebagai top soil, batu gamping dengan kandungan MgO tinggi dan batu gamping dengan kandungan CaO tinggi. Lapisan top soil terdeteksi dengan ketebalan antara 0,140–1,53 m. Sedangkan lapisan kedua diduga sebagai lapisan batu gamping dengan kandungan MgO tinggi terdeteksi dengan ketebalan antara 2,16–10,3 m. Dengan demikian, kedalaman lapisan batu gamping dengan CaO tinggi terdeteksi pada kedalaman 2,30–10,3 m. Hal ini menunjukan pada bagian Timur kedalaman batu gamping dengan kandungan CaO tinggi lebih dalam dibandingkan bagian Barat. Namun kedalaman paling dalam pada bagian Timur Laut dan Tenggara. Pada bagian tengah kedalaman lebih dalam dari yang diperoleh pada bagian Barat pada lokasi penelitian, tapi tidak sedalam pada bagian Timur Laut dan Tenggara. Kata kunci: Geolistrik, batu gamping, Rembang
APLIKASI METODE GEOLISTRIK RESISTIVITAS KONFIGURASI SCHLUMBERGER UNTUK IDENTIFIKASI AKUIFER DI KECAMATAN PLUPUH, KABUPATEN SRAGEN Winarni, Eka Ayu Tyas; Darsono, Darsono; Legowo, Budi
Jurnal Fisika FLUX Vol 11, No 2 (2014): Jurnal Fisika FLUX Edisi Agustus 2014
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v11i2.2674

Abstract

ABSTRAK. Identifikasi akuifer di Kecamatan Plupuh, Kabupaten Sragen telah dilakukan dengan metode geolistrik resistivitas konfigurasi Schlumberger. Akuisisi data di lapangan dilakukan pada 8 titik sounding dengan panjang lintasan tiap titik adalah antara 250-400 m. Hasil akuisisi data lapangan menunjukkan nilai resistivitas semu (ρa), selanjutnya diolah dengan software IPI2win untuk memperoleh nilai resistivitas sebenarnya, kedalaman dan ketebalan tiap-tiap lapisan permukaan bumi. Dari hasil pengolahan ini kemudian nilai resistivitas dibandingkan dengan tabel nilai resistivitas literatur. Berdasarkan hasil interpretasi diperoleh lapisan akuifer dangkal pada kedalaman antara 2,23-27,6 m dengan ketebalan antara 2,42-70,7 m dan akuifer dalam berada pada kedalaman 32,6-124 m dengan ketebalan antara 13,6-80,4 m. Dari hasil interpretasi kemudian dibuat penampang 2 dimensi yang menghubungkan titik-titik sounding yang segaris dengan software Rockwork 15 untuk mengetahui persebaran akuifer. Kata Kunci: Akuifer, geolistrik, resistivitas
Model Laboratorium Lapangan Identifikasi Limbah Cair Menggunakan Metode Cross-Hole Geolistrik Resistivitas Devianta, Reza; Legowo, Budi; Purwanto, Hery
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 3, No 02 (2013): IJAP VOLUME 03 ISSUE 02 YEAR 2013
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v3i02.1246

Abstract

It has been done a cross-hole method of field laboratory geoelectrical resistivity to identify the wastewater in Grogol, Gatak, Delanggu, Jawa Tengah. Measurements were performed using McOHM 2119C-EL OYO Resistivity meter. The Anomaly of the object that has given of this research is wastewater. The data acquisition of cross-hole model use dipole-dipole geoelectrical configuration. The distance between the two boreholes is 3 m and spaced electrodes that used are 0,1 m; 0,2 m; 0,3 m and 0,4 m. The Data will be taken from the movement of saline water anomaly that mobiles on the ground and each taking every 4 days for 5 times of the data acquisition. A description of the result of the anomaly will be reviewed using RES2DINV 3.56software. The visualization of the movement of wastewater model on day 4th is at a depth of 0,4 m – 0,6 m at a distance x = 0,5 m - 2,5 m with resistivity 10 - 10,8 Ωm. On day 8th is located at a depth x = 0,5 m – 0,8 m, x = 0,5 m – 2,5 m with resistivity 10 - 14 Ωm. And on day 12th is located at a depth of 0,8 m – 1,2 m at a distance x = 0 m – 0,5 m, x = 2,5 m - 3,0 m and x =1,5m - 2,5 m with a resistivity of 12,4 - 15 Ωm.
Identifikasi Situs Candi Bukit Carang, Karanganyar Menggunakan Metode Geolistrik Tahanan Jenis Konfigurasi Dipol-Dipol Jayanti, Diah Sri; D, Darsono; Legowo, Budi
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 2, No 02 (2012): IJAP VOLUME 02 ISSUE 02 YEAR 2012
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v2i02.1290

Abstract

Identification of temple sites have been performed on the Bukit Carang region atAnggrasmanis, Jenawi, Karanganyar, Central Javausing the geoelectricity resistivitymeasurement with a dipoles configuration method. This method can determine buried sites around the site groundwork. Software Surfer ver 8.0 and Res2dinv ver 3.30b are used to analyze the mapping data and the sounding data, respectively. This research foundelevenanomalies structured andesite’s rock with resistivity of935-1511 Ωmwhich is considered as temple sites.
Learning Strategy of Role Playing in The Material Submission of The Nuclear Power Application Environmental Physics Subjects Legowo, Budi
International Journal of Active Learning Vol 1, No 1 (2016): April 2016
Publisher : International Journal of Active Learning

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (265.245 KB) | DOI: 10.15294/ijal.v1i1.7736

Abstract

Establishment controversy of the Nuclear Power Plant (NPP) that is delivered in the Environmental Physics course of Department of Physics of Faculty of Mathematic and Natural Science of Sebelas Maret University use the Role Playing strategy. This strategy brings active student playing the role of the government (policy makers), a group of scientists (neutral) and community groups who refused. Literature studies and group discussions conducted by its students to summarize back knowledge of nuclear power plants, according to the role that will be presented in lectures. The course made in the form of an open debate, where the lecturer acts as a moderator / facilitator. This strategy encourages students to hone the skills of independent learning (individual or group) and can help students to appreciate his knowledge either in small discussion (group) as well as the delivery of openly (public debate).How to CiteLegowo, B. (2016). Learning Strategy of Role Playing in The Material Submission of The Nuclear Power Application Environmental Physics Subjects. International Journal of Active Learning, 1(1).
Increasing Competency 4C using The G-Suite Application for Education Legowo, Budi; Kusharjanta, Bambang; Sutomo, Artono Dwijo; Mulyadi, Mulyadi; Wahyuningsih, Daru
International Journal of Active Learning Vol 4, No 2 (2019): October 2019
Publisher : International Journal of Active Learning

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (312.178 KB) | DOI: 10.15294/ijal.v4i2.21073

Abstract

4C competencies (Communication, Collaboration, Critical Thinking and Problem Solving, Creativity and Innovation) is the learning achievement needed at this time. Learning in the Industrial Revolution 4.0 era provides an opportunity to increase 4C competencies without space and time limits, by utilizing information and communication technology. This study aims to use the G-Suite for Education as a substitution of learning models and or strategies to improve 4C competence in the Wawasan Pedagogi Course in the Physics Study Program of Mathematics and Natural Science Faculty of Sebelas Maret University. The research mechanism includes two strand cycles, namely learning with a student-centered learning (SCL) approach as follows: 1). Classical and 2). Online using G-Suite for Education. Reflections from the two research cycles show students could  follow both classical (face-to-face) and online learning strategies, in the delivery of material and or assessment of learning outcomes.
Identification of Subsurface Structures of Geothermal Potential Area in East of Mount Lawu Using The Gravity Method Koesuma, Sorja; Septianingsih, Mela Budiani; Legowo, Budi
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 10, No 01 (2020): IJAP Volume 10 ISSUE 01 YEAR 2020
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.376 KB) | DOI: 10.13057/ijap.v10i01.34217

Abstract

Information about the eastern side subsurface stones of Mount Lawu regarding geothermal potential is limited. This research was conducted to provide information regarding geothermal potential in those area by using the gravity method. We did a 18 sites of gravity surveys in eastern flank of Mount Lawu where located in Magetan regency, Ngawi regency and Sragen regency, East Java. The principle of this method is to measure the earth's gravity field, then the value of gravity is corrected by some gravity corrections, i.e. height, tide, drift, normal gravity, free-air, Bouguer and terrain corrections. The Complete Bouguer Anomaly (CBA) shows the formation that related to the rock formation in the subsurface of Mount Lawu. Based on CBA modelling we found that in the eastern flank of Mount Lawu contains of tuff and breccia of volcanic rocks, breccia Jabolarangan and tuff Jabolarangan, lava andesite, igneous rock (pumice), and sedimentary rocks in the form of sandstone and clay. We found a fault structure on six tracks of a research area. Otherwise, we estimated that there is a geothermal potential on the southeast side of the research area
Co-Authors Artono Dwijo Sutomo Bambang Kusharjanta D, Darsono Darsono Darsono Daru Wahyuningsih Devianta, Reza Hanung Adi Nugroho Harjana Harjana Iwan Yahya Jayanti, Diah Sri Kinayung, Satria Koesuma, Sorja Mulyadi Mulyadi Saputro, Setiyawan Adi Septianingsih, Mela Budiani Winarni, Eka Ayu Tyas