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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal RISET Geologi dan Pertambangan Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Journal of Geoscience, Engineering, Environment, and Technology Jurnal Sains Teknologi dan Lingkungan (JSTL) PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Dinamika Journal : Pengabdian Masyarakat GEOGRAPHY : Jurnal Kajian, Penelitian dan Pengembangan Pendidikan Journal of Earth and Marine Technology (JEMT) Indonesian Community Journal Industrial Research Workshop and National Seminar Prosiding University Research Colloquium Darma Sabha Cendekia

Indra Permanajati, Indra

Department Of Geological Engineering Universitas Jenderal Soedirman

Author-ID : 2631401

Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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The Origin of Geothermal Water Around Slamet Volcano - Paguyangan - Cipari, Central Java, Indonesia Sachrul Iswahyudi; Indra Permanajati; Rachmad Setijadi; Januar Aziz Zaenurrohman; Muhamad Afirudin Pamungkas
Journal of Geoscience, Engineering, Environment, and Technology Vol. 5 No. 4 (2020): JGEET Vol 05 No 04: December 2020
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2020.5.4.4112

The existences of several hot springs between Slamet volcano, Paguyangan, and Cipari Districts raised questions regarding their origin. Several studies have been conducted related to the hydrothermal system at the location. Subsequent studies are needed to understand the hydrothermal system at the research site for the sustainability and conservation of geothermal natural resources. This research has reviewed several previous studies plus the latest information on the origin of hot spring water with the help of deuterium (2H) and 18O isotopes. This study used geochemical analysis of hot springs (geothermal) and local meteoric water to obtain information on isotope values. This was used for the interpretation of the origin of geothermal water. This study also used regional geological analysis methods for the interpretation of the mechanism for the emergence of these hot springs. The results of the analysis informed that the origin of hot water was local meteoric water. The geological structure was weak enough to allow water from the geothermal reservoir to reach the surface and meteoric water into the reservoir.

Analisis Kualitas Air Di Lahan Reklamasi Pertambangan Nikel Desa Mohoni, Petasia Timur, Morowali Utara FX Anjar Tri Laksono; Indra Permanajati; Rahmat Mualim
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 6 No. 1 (2020): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

In Mohoni Village, East Petasia District, North Morowali Regency there are nickel mining activities that are carried out by PT. Asiamax Mining Indonesia. Several locations were mine out status. Hence, reclamation programs are made to improve environmental conditions before mining. One of these stages is water quality tests to ensure that the reclamation area is worthy to be a habitat for animals and plants. The purpose of this study is to find out the water quality in the reclamation area of the ex-nickel mining in Mohoni Village. The storet method is used to analyze water quality whose test parameters include pH, total suspanded solid (TSS), concentrations of copper (Cu), cadmium (Cd), zinc (Zn), lead (Pb), nickel (Ni), chromium valence 6, iron (Fe), manganese (Mn), and cobalt (Co) once every three months for a year.The quality water check results are compared with the environmental quality standards in accordance with law number 32 of 2009. Based on the average monitoring results show that the water quality is classified as moderately polluted. The conclusion from this study is that reclamation land might be not used as habitat for animals and plants because the availability of water is not suitable for consumption

PENINGKATAN NILAI TAMBAH CURUG BANDUNG, DESA SUMINGKIR, KECAMATAN KUTASARI, KABUPATEN PURBALINGGA SEBAGAI DESTINASI GEOWISATA BARU FX Anjar Tri Laksono; Purwanto Bekti Santoso; Indra Permanajati
Dinamika Journal : Pengabdian Masyarakat Vol 2, No 1 (2020)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dj.2020.2.1.933

Sumingkir Village, Kutasari District, Purbalingga Regency has attractive natural tourism potential. Curug Bandung is a natural phenomenon that can develop to be a new geo-tourism destination for local tourists. Before the revitalization, the number of tourists that visited Curug Bandung was very slight. This happens because it has not been well ordered. Therefore, this activity aims to assist village communities in the revitalization of Curug Bandung to be a tourist attraction that is full of visitors. In this activity, the area around Curug Bandung was cleaned of rubbish and provided a special place for fishing grounds. The dam was carried out to hold the water flow from the waterfall to the river so that the depth of the bathing pool under the waterfall increased. Supporting facilities such as coffee shops and food courts are also built as a place to rest and relax the visitors after soaking in a waterfall. Every visitor who wants to visit a tourist attraction pays an entrance ticket for Rp. 20,000 each person. The income is used for the Curug Bandung conservation site. Tourism conscious community was formed as the party responsible for the management of Bandung Waterfall. The conclusion of this study is the revitalization of Curug Bandung has succeeded in increasing the number of local tourist visits and become a new income for the Sumingkir Village.

MODEL KERENTANAN GERAKAN TANAH WILAYAH KECAMATAN CILILIN MENGGUNAKAN TRIGRS Erizky Ade Kurniawan; Adrin Tohari; Indra Permanajati
JURNAL RISET GEOLOGI DAN PERTAMBANGAN Vol 28, No 2 (2018)
Publisher : Indonesian Institute of Sciences

Upaya pengurangan risiko gerakan tanah memerlukan pengetahuan yang baik tentang karakteristik curah hujan yang dapat mempengaruhi kerentanan suatu daerah perbukitan terhadap gerakan tanah. Daerah perbukitan di Kecamatan Cililin di Kabupaten Bandung Barat merupakan salah satu wilayah yang sering mengalami bencana gerakan tanah pada waktu hujan lebat. Makalah ini menyajikan hasil pemodelan kestabilan lereng regional menggunakan Transient Rainfall Inﬁltration and Grid-based Regional Slope-stability analysis (TRIGRS) untuk mengkaji pengaruh karakteristik curah hujan terhadap tingkat kerentanan gerakan tanah di wilayah Kecamatan Cililin. Hasil pemodelan memperlihatkan lokasi-lokasi gerakan tanah pada umumnya terletak pada zona kerentanan gerakan tanah tinggi. Selain itu, luas zona kerentanan sangat tinggi dapat meningkat dua kali akibat kenaikan intensitas hujan. Pemodelan juga mengindikasikan bahwa zona kerentanan gerakan tanah dikontrol oleh faktor topografi dan geologi. Zona kerentanan gerakan tanah sangat tinggi cenderung terjadi pada wilayah dengan kondisi kemiringan terjal dan tersusun oleh satuan batuan vulkanik berumur Miosen Akhir yang mempunyai nilai kuat geser yang rendah. Sedangkan zona kerentanan rendah terasosiasi dengan wilayah lereng landai yang tersusun oleh satuan tufa batuapung dan batupasir tufan berumur Miosen Tengah yang mempunyai nilai kuat geser yang tinggi. Efforts to reduce the risk of a landslide require a good knowledge of the characteristics of rainfall on the susceptibility of a hilly area to landslides. The hilly area of Cililin Subdistrict in West Bandung Regency is one of the areas that often experience landslide disasters during heavy rainfalls. This paper presents the regional slope stability modeling using Transient Rainfall Infiltration and Grid-based Regional Slope-stability analysis (TRIGRS) to assess the effect of rainfall on the landslide susceptibility in Cililin Subdistrict. Results of modeling show that the locations of previous landslide incidents are generally located in the very high susceptibility zone. Besides, the areas of very high landslide susceptibility can increase twice due to the increase of rainfall intensity. The modeling also indicates that the landslide susceptibility of the area is mainly controlled by the topographical and geological factors. The high landslide susceptible zone is most likely to occur in the steep hilly areas made up of soils with low shear strength values which were originated from the Upper Miocene volcanic rocks. Whereas very gentle slope areas are made up of high shear strength soil originated from the Middle Miocene (pumice tuff and tuffaceous sandstone) that belongs to the low landslide susceptibility zone.

KAJIAN PETROGRAFI PADA ZONA PELAPUKAN BREKSI PIROKLASTIK TERHADAP LONGSORAN GUNUNG PAWINIHAN, KABUPATEN BANJARNEGARA, PROVINSI JAWA TENGAH Indra Permanajati; Zufialdi Zakaria; Mochamad Sapari Dwi Hadian; Herryal Zoelkarnain Anwar; Rachmad Setijadi
Dinamika Rekayasa Vol 14, No 1 (2018): Jurnal Ilmiah Dinamika Rekayasa - Februari 2018
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2018.14.1.186

Longsoran Gunung Pawinihan di Kabupaten Banjarnegara, merupakan longsoran yang mengakibatkan korban jiwa cukup banyak yaitu sekitar 80 orang meninggal. Longsoran tersebut terjadi pada breksi volkanik Formasi Jonggrangan yang berumur Kuarter. Kondisi yang diteliti adalah terbentuknya bidang gelincir pada zona pelapukan 4 dimana komposisi batuan sebagian besar sudah mengalami pelapukan dengan persentase tanah lebih besar dari mineral utama. Metode yang digunakan adalah klasifikasi zona pelapukan berdasarkan British Standard untuk mendeleniasi zona pelapukan breksi, kemudian analisis petrografi pada zona pelapukan yang berbeda. Hasil yang didapatkan adalah adanya perubahan komposisi mineral utama menjadi material tanah. Perubahan yang terjadi adalah adanya perubahan mineral utama seperti plagioklas menjadi mineral lempung, perubahan yang terjadi pada bagian luar mineral utama. Pada zona pelapukan 4 mineral oksidasi dan lempung mulai berkembang, sehingga komposisi mineral utama dan mineral sekunder utama hampir seimbang. Bidang gelincir longsoran terjadi pada zona ini, sehingga dapat dikatakan bidang gelincir terjadi pada zona 4 dimana terjadi perubahan mineral utama menjadi mineral sekunder yang cukup signifikan.Kata Kunci: Debris slide, zona pelapukan, bidang gelincir

Investigasi Bidang Gelincir Tanah Longsor Dengan Metode Tahanan Jenis Dan Pengujian Sifat Plastisitas Tanah Di Bukit Pawinihan Desa Sijeruk, Kecamatan Banjarmangu, Kabupaten Banjarnegara Zaroh Irayani; Indra Permanajati; Aris Haryadi; Wihantoro Wihantoro; Abdullah Nur Azis
Dinamika Rekayasa Vol 12, No 2 (2016): Jurnal Ilmiah Dinamika Rekayasa - Agustus 2016
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2016.12.2.145

Investigasi bidang gelincir zona rawan longsor di sekitr lokasi mahkota longsor Bukit Pawinihan Sijeruk Banjarnegara telah dilakukan dengan menggunakan metode geolistrik tahanan jenis metode Wenner. Uji sifat plastisitas tanah penyusun di lokasi penelitian dilakukan pada tingkat pelapukan yang berbeda. Tujuannya untuk menentukan kedalaman, jenis pelapukan dan sifat dari bidang gelincir. Hasil pemodelan resistivitas 2D menunjukkan bahwa bidang gelincir berada pada kedalaman 6-8 meter berupa batu breksi lapuk (30-118 Ωm). Batuan ini merupakan batuan dengan tingkat pelapukan 3 dan bersifat kohesif. Nilai indeks plastisitasnya adalah 8,27.

The landscape formation history based on the detailed geological investigation in Aribaya and surrounding area, Pangetan district, Banjarnegara regency, Central Java Annisa Helly Suranda; Huzaely Latief Sunan; Indra Permanajati
Journal of Earth and Marine Technology (JEMT) Vol 2, No 2 (2022)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2022.v2i2.2842

The research site is in the Aribaya area and surrounding areas with an area of 16 km2 which is administratively included in Pagentan Subdistrict, Banjarnegara Regency, Central Java Province. The research area consists of 13 villages, namely: Suwidak, Pandansari, Karangtengah, Gumingsir, Karangnangka, Aribaya, Larangan, Talunamba, Clapar, Gununggiana, Pakelen, and Nagasari. Research objects in the form of Geomorphology, Stratigraphy, Geological Structure, Geological History, and Geological Potential. The geomorphology of the research area is divided into the Aribaya Fault Zone Unit, Gununnggiana Lava Flow Ridge Unit, and Aribaya Intrusion Unit. Based on unofficial lithostratigraphic units, the research area is divided into three rock units and the order from old to young, namely: Sandstone - Claystone Distribution Unit, Pyroclastic Brection Unit, and Diorit Intrusion Unit. Precipitated Sandstone - Claystone In the middle-upper neritic bathymetry environment, which belongs to the formation of the early Miocene – Middle-aged vines. Furthermore, tectonic activity occurs that causes the research area to form faults and syncline folds. Then at the time of the Early Pliocene, there was an influence from the activity of Mount Maung which provided sediment supply in the form of andesite fragments and matrix-sized Tuff Crystals so as to form a pyroclastic breccia unit. At the Time of the Pliocene, there was also diorite intrusion. The next process is the exogenous process that causes morphological form as it is today. The geological potential contained in the research area in the form of diorite mining excavations (positive potential) and landslide movement (negative potential) is quite a lot in the research area.

Kontrol Struktur Geologi Terhadap Gerakan Tanah dan Batuan pada Batuan Formasi Halang di Daerah Sirau, Kecamatan Karang Moncol-Purbalingga, Propinsi Jawa Tengah Asmoro Widagdo; Sachrul Iswahyudi; Rachmad Setijadi; Indra Permanajati; Anjar Tilaksono
Prosiding Industrial Research Workshop and National Seminar Vol 12 (2021): Prosiding 12th Industrial Research Workshop and National Seminar (IRWNS)
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.036 KB)

Kontrol Struktur Geologi Terhadap Gerakan Tanah dan Batuan pada Batuan Formasi Halang di Daerah Sirau, Kecamatan Karang Moncol-Purbalingga, Propinsi Jawa Tengah

ZONA PELAPUKAN SEBAGAI PENGONTROL LONGSORAN DI DAERAH JINGKANG DAN SEKITARNYA, PURBALINGGA Indra Permanajati; Sachrul Iswahyudi
Prosiding University Research Colloquium Proceeding of The 8th University Research Colloquium 2018: Bidang Teknik dan Rekayasa & Bidang Tekni
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (754.128 KB)

Longsoran merupakan fenomena alam yang disebabkan oleh turunnya material tanah, regolith, dan batu dari atas bukit karena gravitasi. Peristiwa ini seringkali menimbulkan korban jiwa dan kerusakan lingkungan ketika harus berinteraksi dengan kehidupan manusia, seperti yang terjadi di desa Jingkang. Longsoran di desa Jingkang terjadi pada bangunan publik yaitu SD Jingkang dan TK Jingkang. Longsoran ini menjadi kajian penelitian karena tejadi pada zona tertentu dalam tingkat pelapukan batuan. Metode yang digunakan adalah deskripsi tingkat pelapukan dengan metode British Standard BS EN ISO 14689-1 pada daerah longsoran, kemudian pemetaan geologi teknik, dan identifikasi anatomi longsor. Hasil yang didapatkan bidang gelincir terdapat pada tingkat lapuk batulempung formasi Halang. Batulempung ini menempel di atas batuan basalt anggota formasi Halang. Tingkat lapuk 4 mempunyai ciri – ciri di lapangan yaitu terdapat material tanah dengan proporsi material tanah lebih besar dari batuan dan struktur batuan masih teramati di lapangan. Batulempung ini mempunyai kemiringan dip relatif ke arah barat (sungai), sehingga daerah ini sangat rawan terjadinya longsor. Terbukti di beberapa tempat sudah terjadi longsor dan beberapa lokasi mengalami retakan dan pergeseran. Saran penanggulangan adalah dengan relokasi bangunan karena kondisi lokasi sudah tidak memungkinkan dikarenakan kondisi geologi yang sangat rentan longsoran

TATA KELOLA TAMAN NASIONAL MERU BETIRI (TNMB) BERDASARKAN ASPEK GEOLOGI LINGKUNGAN Januar Aziz Zaenurrohman; Januar Fery Irawan; Indra Permanajati; Sachrul Iswahyudi
Jurnal Tanah dan Sumberdaya Lahan Vol. 7 No. 1 (2020)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Meru Betiri National Park (TNMB) is a natural conservation area related to land use that impact on the environment. Land-use suitability with land capability is essential so that the impact of the geological environment that can occur can be reduced and controlled. The research aims to determine the aspects of environmental geology and zoning land capability for governance of TNMB. Geological aspects of the environmental order that support this research are morphology (slope), lithology, hydrogeology (river density), and land cover. Each aspect is a parameter in the Analytical Hierarchy Process (AHP) evaluation method. The weight of each parameter of the AHP evaluation result is 26% for slope, 19% for lithology, 11% for river density, and 44% for land cover. The result of overlay parameters yields a score of each zoning and is classified into 4 (four) zoning land capabilities for governance of TNMB. The land use zone for governance of TNMB is divided into high capability zones, medium capability, low capability, and very low capability. High and medium capability zones can be used as conservation of TNMB primary forests.

Co-Authors Abdullah Nur Azis Adi Candra, Adi Adrin Tohari Anjar Tilaksono Annisa Helly Suranda Asmoro Widagdo Asmoro Widagdo Asmoro Widagdo, Asmoro Erizky Ade Kurniawan FX Anjar Tri Laksono FX Anjar Tri Laksono Hari Wiki Utama Haryadi, Aris Herryal Zoelkarnain Anwar Huzaely Latief Sunan Januar Aziz Zaenurrohman Januar Fery Irawan Mochamad Sapari Dwi Hadian Muhamad Afirudin Pamungkas Muhammad Syaiful Aliim Panggah Bagaskara Nuraga Purwanto Bekti Santoso Rachmad Setijadi Rachmad Setijadi Rachmad Setijadi Rachmad Setijadi Rahmat Mualim Sachrul Iswahyudi Siswandi Siswandi, Siswandi Sunan, Huzaely Latief Suranda, Annisa Helly Tigar Putri Adhiana Wihantoro Wihantoro Zaroh Irayani Zufialdi Zakaria

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