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SPATIOTEMPORAL DISTRIBUTION OF THE CONGLOMERATE RESERVOIR JATIBARANG FORMATION, MELANDONG FIELD, NORTH-WEST JAVA BASIN, INDONESIA Adhari, Muhammad Ridha; Nirwana, Akmal Muhni; Gunarsih, Dina
Indonesian Physical Review Vol. 6 No. 2 (2023)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v6i2.234

Abstract

Subsurface mapping of the distribution of the reservoir is essential to be conducted in order to minimize many risks such as financial losses and also to increase profit from hydrocarbon production. This research was conducted on the Jatibarang conglomerate reservoir in Melandong Field, North West Java Basin, Indonesia. There are three objectives of this study which are to perform elastic impedance (EI) seismic inversion using available 3D seismic data, to determine the most suitable elastic impedance angle for the data, and to map spatiotemporal distribution of the Jatibarang Formation reservoir in the Melandong field, North West Java basin, Indonesia. EI inversion was selected for this study using the inversion angle ranging from the near stack (5º-15º) to the far stack (20º-30º). Results from this study show that EI seismic inversion can help in detecting the distribution of the lithology and hydrocarbon within the target zone. Angle 5º is considered as the best EI angle for the studied data as indicated by a correlation value of 0.65. Moreover, EI angles 15º and 10º are less reliable as shown by their correlation value of 0.6 and 0.56, respectively. These results are expected to provide some new insights into the distribution of the Jatibarang reservoir, and help in exploration, exploitation, and development of oil and gas fields in Melandong Field, North West Java Basin, Indonesia.
PROVENANCE ANALYSIS OF THE RAMPONG FORMATION SANDSTONE IN THE KETUKAH AREA, GAYO LUES, ACEH Sartika, Dewi; Gunarsih, Dina; Ahmad, Luthfi; Muhni, Akmal; Rahmatillah, Lia Fitria; Adhari, Muhammad Ridha
Indonesian Physical Review Vol. 7 No. 1 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i1.261

Abstract

The research location is in Ketukah, Gayo Lues Aceh, which is composed of the Late Oligocene to Early Miocene Rampong Formation. Lithology includes sandstones, conglomerates, and mudstones. The study aims to determine the origin of the sandstones in the Rampong Formation. Provenance studies are beneficial in providing information for oil and gas exploration. The analysis is critical for understanding the sediment transport channel, the overall depositional pattern of the basin, and predicting the location of sand bodies in the basin. Because the Rampong Formation is located in the North Sumatra Basin, the availability of provenance information is useful in efforts to search for oil and gas potential in the future. In this research, we restrict the study to the provenance, which includes the tectonic setting, origin rock, and paleoclimate where these sandstones originate. The methods are geological mapping and petrographic analysis. In petrographic analysis, we use JMicrovision to calculate mineral composition. The results showed that the sandstones of the Rampong Formation are arenite sandstones, especially sub-arkosic and sub-lith arenite. They originate from a tectonic setting known as a recycled orogen, related to the subduction of Eurasia and the Indo-Australian plates.  The sandstones were formed from granite that had undergone low metamorphism in the Late Cretaceous to the Eocene period. In addition, the paleoclimate is humid.
DIAGENETIC STUDY BASED ON PETROGRAPHY: IMPLICATIONS FOR SANDSTONE POROSITY OF THE PEUNASU FORMATION, PULAU NASI, ACEH Gunarsih, Dina; Sary, Cut Afriyana; Muhni, Akmal; Rahmatillah, Lia Fitria; Sartika, Dewi
Indonesian Physical Review Vol. 8 No. 1 (2025)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v8i1.357

Abstract

Diagenetic studies observe the process of changing sedimentary deposits into sedimentary rocks. This study is critical because it relates to the quality of rock porosity, which can be filled by fluid.  The analysis of the Peunasu Formation is interesting because previous researchers considered that the Tertiary sedimentary rocks in the Northwest Aceh Basin are equivalent to rock units in the petroleum system in the North Sumatra Basin and Mergui Basin. Meanwhile, studies on the Peunasu Formation, a tertiary sedimentary rock, still need to be completed. Therefore, this study was carried out to determine the characteristics and diagenetic processes in the sandstone of the Peunasu Formation. The method used is petrographic observation, which identifies the composition of rocks along with textures such as grain size, roundness, sorting, grain contact, and porosity. The results are that the Peunasu Formation sandstone is classified as sublitharenite, lithic greywacke, and litharenite. The diagenetic regime is mesogenesis. In the mesogenesis stage, the sandstone of the Peunasu Formation experiences compaction, cementation, and dissolution. The porosity of the Peunasu Formation sandstone, as determined by the percentage of pores, exhibits a range of 0.5% to 16.8%, categorizing it as ranging from negligible to moderate. Compaction reduces the intergranular porosity, while the dissolution of grains contributes to the formation of secondary porosity.
Penguatan Pengetahuan Kesiapsiagaan Terhadap Bahaya Bencana Gempa Bumi dan Tsunami bagi Siswa SMAN I Lhoknga, Kabupaten Aceh Besar Masrurah, Zakia; Sartika, Dewi; Oktarini, Yoessi; Muhni, Akmal
PESARE: Jurnal Pengabdian Sains dan Rekayasa Vol 2, No 2 (2024): Juni 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/pesare.v2i2.38419

Abstract

Earthquakes and tsunamis are natural disasters that can occur anywhere and anytime. Knowledge about the dangers of natural disasters needs to be imparted to the community so that they can understand the types and levels of danger that may arise. This is necessary to enhance the community's capacity to deal with disasters. Reflecting on the occurrence of the 2004 Aceh Earthquake and Tsunami, which claimed hundreds of thousands of lives and caused hundreds of millions of US dollars in losses, increasing knowledge and understanding of disaster hazards needs to be continuously pursued. The repetition of these activities aligns the history of disaster events passed down through generations with the advancements in scientific knowledge and technological progress. Increasing knowledge of earthquake and tsunami hazards can be achieved, in part, through socialization efforts. One appropriate segment of society to receive reinforcement of knowledge through socialization activities is high school students, particularly the students of SMAN 1 Lhoknga, Aceh Besar Regency. Students are the younger generation whose roles can be agents of change within the wider community. Therefore, their role in the realm of disaster management needs to be supported by a good and competent capacity enhancement. Thus, students of SMAN 1 Lhoknga can understand the factors causing and the impacts arising from earthquake and tsunami disasters and actively participate in such events.
PEMBERDAYAAN MASYARAKAT GAMPONG PANGO DEAH MELALUI INOVASI SABUN PEMBERSIH LANTAI ANTIBAKTERI BERBASIS MINYAK NILAM DAN SEREH Fakri, Fajar; Nasution, Muhammad Amin; Asyifa, Cut Nella; Iryana, Mirdha; Muhni, Akmal; Afra, Mauliza; Sandrina, Syura; Humaira, Zaura
Jurnal Abdi Insani Vol 12 No 11 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i11.3290

Abstract

Patchouli oil and citronella oil are Aceh’s leading commodities that produce essential oils with various benefits, including natural antibacterial properties. However, their utilization in household products remains limited, while most communities still rely on chemically based floor cleaners at relatively high prices. In response to this potential, a community service program was conducted in Pango Deah Village by empowering beneficiaries of the Family Hope Program (PKH) to innovate in producing antibacterial floor cleaning soap based on patchouli and citronella oils. The activities included socialization on household hygiene, technical training on soap production, hands-on practice through a learning-by-doing approach, and evaluation using pre-test and post-test assessments. The evaluation results showed an increase in the average score from 78.50% to 99.00% after the training, indicating a significant improvement in participants’ understanding and practical skills. All participants (100%) expressed high satisfaction with the content, methods, and overall benefits of the program. The resulting floor cleaning soap exhibited a distinctive aroma of patchouli and citronella, as well as good product stability, making it a promising environmentally friendly household product with market potential. Participants’ enthusiasm was demonstrated by their intention to further develop the product as a home-based business. This program is expected to enhance community skills, promote economic independence, and encourage the sustainable utilization of local resources.
Analisis Granulometri Batupasir Formasi Tutut di Kecamatan Beutong, Kabupaten Nagan Raya, Provinsi Aceh Anggi Aulia; Dina Gunarsih; Lia Fitria Rahmatillah; Dewi Sartika; Tika Hapsari; Akmal Muhni
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 2 (2026): May
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i2.1791

Abstract

This study examines the grain-size distribution of the Tutut Formation sandstone using granulometric analysis. The purpose of this granulometric observation is to determine the depositional environment and its transportation mechanisms. In addition to using granulometric methods, this study also includes geological mapping to observe the rock lithology in the field. The results show that the study location consists of sandstone and mudstone units of the Tutut Formation, Meulaboh sand deposit units, and alluvial deposit units. The characteristics of Tutut Formation sandstone are gray-brown, reddish-brown due to weathering, coarse to fine sand grain size, medium to slightly rounded roundness, and does not react with HCl. Based on granulometric analysis, Tutut Formation sandstone has an average grain size of 0.214-0.327 ϕ, which is classified as coarse sand. The degree of sorting is 0.321 ϕ to 0.417 ϕ, with an average of 0.35 ϕ, so it is classified as good. Skewness values range from 0.107 to 0.263, with an average of 0.1775 ϕ, indicating fine skewness. The 0.1775 ϕ of the average skewness value indicates that the flow in this depositional environment is turbulent and a river depositional environment. Meanwhile, the kurtosis value ranges from 0.060 to 0.11, indicating a platykurtic to highly platykurtic distribution, suggesting a fairly diverse and even grain-size distribution from fine sizes in the matrix to coarse sizes. The diverse grain size implies that the matrix fills the pores between coarse grains. Thus, porosity is not available and has no potential as a reservoir rock.
USE OF ELECTRICAL RESISTIVITY FOR MAPPING THE LEACHATE DISTRIBUTION IN BLANG BINTANG SANITARY LANDFILL, ACEH DISTRICT Zakia Masrurah; Akmal Muhni; Muhammad Yanis; Muzakir Zainal
Indonesian Physical Review Vol. 9 No. 2 (2026)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v9i2.549

Abstract

An increase in waste in urban areas, especially in landfills, can produce leachate that has the potential to pollute the environment. The Blang Bintang waste treatment facility, which uses a sanitary landfill system, is in a hilly area with complex geology dominated by andesite volcanic rocks. This study aims to identify and estimate the level of leachate contamination at the Blang Bintang landfill in Aceh using Electrical Resistivity Tomography (ERT).  Four ERT profiles were measured in the leachate treatment facility area, spanning 180 meters in length and up to 30 meters in depth. ERT data analysis using the Res2dinv software produced an accurate model with an RMS error of 10%-20%. The modeling results indicate the presence of conductive zones (5–150 Ohm.m) near the surface layers of profiles 1 and 2, suggesting leachate contamination. The electrical resistivity tomography (ERT) model further demonstrates leachate accumulation in the subsurface, which poses a potential risk to groundwater quality. In Profile 3, conductive zones (5–200 Ohm.m) are observed along the underground leachate pipeline. For Profile 4, conductive layers (15–250 Ohm.m) are attributed to seepage from the first leachate pond, indicating substantial contamination. This study provides landfill managers with valuable data on subsurface contamination that cannot be identified from surface observations. It also advances geophysical methods for environmental impact assessments.
Pemberdayaan masyarakat Gampong Baro, Aceh Besar dalam upaya mitigasi bencana geologi Muhammad Ridha Adhari; Dewi Sartika; Dina Gunarsih; Hidayat Syah Putra; Rifqan Rifqan; Gartika Setiya Nugraha; Akmal Muhni
PESARE: Jurnal Pengabdian Sains dan Rekayasa Vol 3, No 1 (2025): Februari 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/pesare.v3i1.44386

Abstract

Gampong Baro, subdistrict of Mesjid Raya, Aceh Besar was strongly hit by the Indian ocean earthquake and tsunami in 2004. This is mainly due to its location which is situated near the shoreline. Moreover, many villagers of the Gampong Baro lost their lives during that geological hazard. It is well known that earthquake and tsunami may potentially return again in the future, and may cause another great misery. Our earlier, current study shows that many villagers of Gampong Baro are not familiar with the earthquake and tsunami hazards, and they have very little understanding of these geological phenomenon. Therefore, in order to help mitigate this geological hazard, we decided to organize a training about geological hazards mitigation procedures for the villagers of Gampong Baro, Aceh Besar. There are two objectives of this community service, which are: (1) to improve geological knowledge of the villagers of Gampong Baro, Aceh Besar; and (2) to conduct training about geological hazards mitigation procedures. Qualitative analysis, including focus group discussion, interviews, questionnaire, and surveys was carried out during this activity. Our findings show that villagers of Gampong Baro, Aceh Besar are eager to learn about geological knowledge, and have strong commitment to better understand many geological hazard mitigation procedures. They were very happy that we provided this training because they considered it as an important training, considering the potential of many geological hazards that may hit their village.
SOSIALISASI POTENSI BAHAYA DAN DAMPAK BENCANA GEMPABUMI DI SMPN 2 DARUL IMARAH, KABUPATEN ACEH BESAR Dewi Sartika; Muhammad Ridha Adhari; Akmal Muhni; Dina Gunarsih; Yoessi Oktarini
Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS Vol. 4 No. 1 (2026): Februari
Publisher : CV. Alina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59407/jpki2.v4i1.3511

Abstract

Persoalan bencana gempa bumi sangat erat kaitannya dengan sisi kehidupan masyarakat baik bersifat individual maupun kelompok. Pemahaman akan potensi terjadinya bencana gempa bumi sangat penting di kehidupan sehari-hari. Dalam menangani bencana gempa bumi perlu dilakukan pendekatan secara menyeluruh dengan melibatkan semua elemen masyarakat. Hal ini bertujuan agar terbangun kesadaran akan potensi terjadinya bencana gempabumi. Pengabdian ini telah dilakukan dengan melibatkan salah satu elemen masyarakat yaitu pelajar di Sekolah Menengah Pertama (SMP) Negeri 2 Darul Imarah, Kabupaten Aceh Besar, Provinsi Aceh. Sosialisasi tentang bahaya dan dampak terjadinya bencana gempa bumi sangatlah penting mengingat bencana ini dapat terjadi kapan saja dan dimana saja. Kegiatan pengabdian masyarakat ini bertujuan untuk dapat memberikan informasi tentang penyebab terjadinya gempa bumi dan faktor bencana yang muncul akibat gempa bumi tersebut. Kegiatan sosialisasi ini dilakukan menggunakan metode Participatory Rural Appraisal (PRA) yang dilakukan dengan cara mengajak para peserta kegiatan untuk berpartisipasi dalam proses pengembangan sebuah kegiatan. Setelah mengikuti kegiatan ini, para pelajar diharapkan dapat berhati-hati apabila bencana gempa bumi tersebut muncul serta dapat melakukan tindakan mitigasi akibat bencana yang muncul dari gempa bumi.
UNSUR TANAH JARANG PADA BATUPASIR: STUDI KASUS PADA BATUPASIR FORMASI RAMPONG DI DESA KETUKAH, GAYO LUES, ACEH Dina Gunarsih; Lia Fitria Rahmatillah; Akmal Muhni; Dewi Sartika; Tika Hapsari; Yurda Marvita
Jurnal Geosaintek Vol. 11 No. 2 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v11i2.2592

Abstract

Unsur tanah jarang (UTJ) semakin diminati dalam beberapa tahun terakhir karena meningkatnya permintaan teknologi kendaraan listrik, industri hijau, dan industri lainnya. Indonesia memiliki potensi UTJ yang berkaitan dengan keberadaan batuan beku dan batuan sedimen. Penelitian pada batupasir Formasi Rampong di Ketukah, Gayo Lues menarik dilakukan karena batuan ini berasal dari pelapukan batuan granit. Tujuan studi ini adalah untuk mengetahui komposisi batupasir Formasi Rampong dan unsur – unsur kimia batuan, termasuk unsur utama dan UTJ. Metode yang digunakan meliputi analisis petrografi dan geokimia menggunakan teknik XRF dan ICP. Enam sampel petrografi diamati terdiri dari empat batupasir quartz arenite dan dua batupasir feldsphatic greywacke. Kedua jenis batupasir tersebut merupakan batuan yang tersusun dari dominan butiran, dengan komposisi matriks 2.5% - 4.5% pada batupasir quartz arenite dan 18.83% - 21.13% pada batupasir feldsphatic greywacke. Quartz arenite tersusun dari mineral kuarsa, sedikit litik dan muskovit, semen silika dan semen oksida besi. Feldsphatic greywacke terdiri dari kuarsa, K-Feldspar, plagioklas, fragmen litik, muskovit, semen silika serta semen oksida besi. Analisis geokimia mengungkapkan bahwa UTJ pada batupasir ini adalah Neodimium (Nd) berkisar antara 19.21 ppm hingga 23.81 ppm dan Praseodimium (Pr) berkisar antara 5.76 ppm hingga 5.89 ppm. Unsur tersebut diinterpretasikan terkonsentrasi dalam mineral lempung dan oksida besi dengan pengkayaan relatif rendah.
Co-Authors ADILA, NUR Adrian, Fahri Afra, Mauliza Ahmad, Luthfi Alfian, Zika Ali Muhammad Muslih Amsir Amsir, Amsir Anggi Aulia Ariadi Putra Ashsiddiqi, Farhan Asrillah Asyifa, Cut Nella Asyqari, Amir Badrul Munir Bakri , Tedy Kurniawan Darisma, Dian Dewi Sartika Dewi Sartika DEWI SARTIKA Dewi Sartika Sartika Dina Gunarsih Fadhli, zul Fadhly, Ahmad Fahri Adrian Fahri Adrian Fajar Fakri Febrian, Muhammad Siddiq Fitria Rahmatillah, Lia Gartika Setiya Nugraha Ghazi Mauer Idroes Haerati, Dwi Halida Yunita Harahap, Saima Putri Hewindati, Yuni Tri Hidayat Syah Putra Hidayat Syah Putra Hidayat Syah Putra Hidayat Syah Putra Humaira, Zaura Ibnu Rusydy Illian , Didi Nurhadi Iryana, Mirdha Iskandar*, Juellyan Isnaini , Nadia Karmel, Moehammad Ediyan Raza Khairan Khairan Lia Fitria Lia Fitria Rahmatillah Lia Fitria Rahmatillah Manalu, Kasih D Marlinawati, Intan Marvita, Yurda Marwan Abu Bakar Marwan Marwan Masrurah, Zakia Millati Amalia Sentosa Muhammad Amin Nasution Muhammad Andry Muhammad Arief Akbar Muhammad Arief Akbar Muhammad Ridha Adhari Muhammad Ridha Adhari, Muhammad Ridha Muhammad Yanis Muhammad Yanis MUNIRA SUNGKAR, MUNIRA Muzakir Zainal Muzakir Zainal Muzhaffar, Imam Nasution , Muhammad Amin Naufal, Haris Hartsa Nurul Azmi, Nurul Oktarini, Yoessi Putra, Hidayat Syah Rahmatillah, Lia Fitria Rangkuti, Nazla Syafitri Raudhatul Jannah Raza Karmel, Moehammad Ediyan Reza Gunawan Rifqan Rifqan, Rifqan Rifqan, Rifqan Rini Safitri Safira, Maya Salsabila, Rifa Salma Sandrina, Syura Sartika*, Dewi Sary, Cut Afriyana Shafira Putri Rizani Tarmizi Tarmizi . Taufiq Saidi Tika Hapsari Tika Hapsari Yoessi Oktarini Yoessi Oktarini Yoessi Oktarini Yurda Marvita Zakia Masrurah Zakia Masrurah