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All Journal Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Jurnal Penelitian Pendidikan IPA (JPPIPA) Bulletin of Geology
Eko Puswanto, Eko
Balai Informai dan Konservasi Kebumian, Lembaga Ilmu Pengetahuan Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Materials Science & Nanotechnology Physics

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ANALISA HIDROLOGI PERMUKAAN DALAM HUBUNGANNYA DENGAN DEBIT BANJIR DAS LUKULO HULU DENGAN MENGGUNAKAN DATA PENGINDERAAN JAUH Raharjo, Puguh D; Winduhutomo, Sueno; Widayanto, Kristiawan; Puswanto, Eko
Jurnal Geografi Vol 13, No 2 (2016): July 2016
Publisher : Jurnal Geografi

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Abstract

Lukulo upstream watershed represents a watershed in Karangsambung Geological Nature Preserve, thisbasin is located administratively in Central Java Province with Area is ± 281,394 km2. In rainy season theriver discharge of upstream lukulo steep increase, while in the dry season is very small. The purpose of thisstudy was to analyze the surface hydrology in relation to the flood discharge in the Lukulo upstreamwatershed using remote sensing data. Data of SRTM image was processed DEM hydro-processing in theform of flow determination and network catchment extraction produced 16 units of sub-drainage. Results ofcoeffitient runoff value estimates using Bransby and Williams method is 58% with flood discharge wasestimated using the rational method at 562, 098 m3/second which had difference with the actual flooddischarge at 1, 662 m3. Value of flood discharge in the Lukulo upstream watershed is relatively large andcan cause flooding /overflowing of rivers in the surrounding area.
Analisa Spasial Risiko Longsoran Skala Kecamatan, Studi Kasus di Kecamatan Kaliwiro, Kabupaten Wonosobo Raharjo, Puguh Dwi; Hidayat, Edi; Widiyanto, Kristiawan; Puswanto, Eko; Winduhutomo, Sueno
Jurnal Geologi dan Sumberdaya Mineral Vol 18, No 1 (2017): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

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Abstract

Subdistricts of Kaliwiro - Wonosobo is a region with diverse topography and included in the Karangsambung Geological Nature Reserve. The purpose of this study was to determine the role of socio-community in Karangsambung which influencing the landslides risk. In this study, we analyted every environmental physical factors to give the landslide hazard map. Analytical Hierarchy Process (AHP) is used as a method to processing landslides maps using Geographic Information System (GIS). The landslides hazard associated with the socio-community and the environment, visible role in reducing the landslides risk. The results obtained that in some places have a high-level of landslide hazard. However, the socio-community is very well in overcoming the impact and mitigation of landslides. Social conditions is very influential on the landslides risk which often occur in the Kaliwiro Sub district. Keywords: GIS, lanslide, menace, vulnerability, capacity, risk.
ANALISA HIDROLOGI PERMUKAAN DALAM HUBUNGANNYA DENGAN DEBIT BANJIR DAS LUKULO HULU DENGAN MENGGUNAKAN DATA PENGINDERAAN JAUH Raharjo, Puguh D; Winduhutomo, Sueno; Widayanto, Kristiawan; Puswanto, Eko
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol 13, No 2 (2016): July 2016
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v13i2.7974

Abstract

Lukulo upstream watershed represents a watershed in Karangsambung Geological Nature Preserve, thisbasin is located administratively in Central Java Province with Area is ± 281,394 km2. In rainy season theriver discharge of upstream lukulo steep increase, while in the dry season is very small. The purpose of thisstudy was to analyze the surface hydrology in relation to the flood discharge in the Lukulo upstreamwatershed using remote sensing data. Data of SRTM image was processed DEM hydro-processing in theform of flow determination and network catchment extraction produced 16 units of sub-drainage. Results ofcoeffitient runoff value estimates using Bransby and Williams method is 58% with flood discharge wasestimated using the rational method at 562, 098 m3/second which had difference with the actual flooddischarge at 1, 662 m3. Value of flood discharge in the Lukulo upstream watershed is relatively large andcan cause flooding /overflowing of rivers in the surrounding area.
BATUPASIR “BULUKUNING” PADA LEMPUNG BERSISIK DI DAERAH BANJARNEGARA, JAWA TENGAH ; STUDI PETROLOGI, PROVENAN DAN IMPLIKASI TEKTONIK Harsolumakso, Agus Handoyo; Puswanto, Eko; Sucipta, IGB Eddy
Bulletin of Geology Vol 3 No 2 (2019): Bulletin of Geology
Publisher : Fakultas Ilmu dan Teknologi Kebumian (FITB), Institut Teknologi Bandung (ITB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/bull.geol.2019.3.2.1

Abstract

Sandstone unit in the Bulukuning area, Banjarnegara known and even once proposed as the Bulukuning Formation were formerly referred to as the greywacke sandstones as part of the Luk Ulo Melange Complex which is believed as Early Cretaceous-Paleocene in age. The sandstones are lightly metamorphosed and observed in many places to be inclunded in the exotic blocks within the scaly clay which is generally considered as matrix of melange. This study examines the details of lithological characteristics, their provenances and tectonic implications. Undeformed sequences of the Bulukuning Sandstones represented by well bedded sandstones and siltstones. Determinations of fossil species and association of these sandstones yield Paleo-Nummulites and nanno fossil matrices which strongly suggest Middle-Late Eocene (NP15-16). The highly deformed sequence of Bulukuning Sandstones often show block in matrix characters while others develop more boudinage structures as a result of rigid deformation. Analysis of the scaly clay matrix using the illite crystallinity (IC) value suggested that the deformation controlled the formation of scaly clay and boudinage structures occurred at temperatures around 205.916o - 223.014oC (± 30°). The provenance study of the sandstones confirms that these are resulted from recycled orogens related to the Micro-Continent collision of East Java with the southeast margin of the Sundaland during the Late Eocene-Early Oligocene period. The collision was subsequently followed by the exhumation of Karangsambung accretion complex, previously formed volcanic rocks and several Sundanese land blocks.
Using Virtual Outcrop Models as a Geological Learning Media Fajar, M. Haris Miftakhul; Widodo, Amien; Puswanto, Eko; Alfany, Marsha Khairia; Wirayudhatama, Mahendra; Abdullah, Fikri
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.3398

Abstract

The Covid-19 pandemic has impacted various sectors due to a new wave of technology rising shortly, specifically geological learning models. Using research and development methods, the research aims to develop more scientific observations as a provision for pre-field work activities at Geophysical Engineering Department Institut Teknologi Sepuluh Nopember. Furthermore, we need a media that can provide learning that can emphasize process skills and students' abilities to determine and understand the objective concepts of material. Virtual outcrop models integrated with video learning platform can fulfil the learning process by providing experience in observations outcrops directly in the class. A three-dimensional (3D) Virtual Outcrop Model (VOMs) was created using the photogrammetry software Agisoft PhotoScan based on photos taken in the field using smartphones and drones. The existence of this media is expected to add direct experience to visualize how geological phenomena occur in nature. The learning activities are divided into four sequential stages: observation, data collection, interpretation, and hypothesis giving. 87% of respondents stated that learning models using VOMs and videos can boost their knowledge of scientific observation. This learning method can help improve academic achievement because it applies technology implementation in theory and practice, providing geological information to us
Co-Authors Agus Handoyo Harsolumakso, Agus Handoyo Alfany, Marsha Khairia Amien Widodo Edi Hidayat Fajar, M. Haris Miftakhul Fikri Abdullah, Fikri Kristiawan Widayanto, Kristiawan Kristiawan Widiyanto, Kristiawan Puguh D Raharjo, Puguh D Puguh Dwi Raharjo Sucipta, IGB Eddy Sueno Winduhutomo Wirayudhatama, Mahendra