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All Journal POSITRON Journal of Aceh Physics Society Jurnal Geosains dan Teknologi PESARE: Science and Engineering Service Journal Jurnal Geosaintek
Rifqan, Rifqan
Department Of Geological Engineering, Faculty Of Engineering, Universitas Syiah Kuala
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science Physics Public Health

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Groundwater Vulnerability to Pollution Using the GOD Method in Banda Aceh City, Aceh Province Dewi Sartika; Akmal Muhni; Rifqan Rifqan; Hidayat Syah Putra
Journal of Aceh Physics Society Volume 9, Number 3, September 2020
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v9i3.17332

Abstract

Kerentanan airtanah terhadap pencemaran dapat terjadi akibat adanya aktivitas manusia. Oleh karena itu, kualitas dan kuantitas airtanah perlu diperhatikan. Penerapan metode GOD (Groundwater Occurrence, Overlaying Lithology and Depth Of Groundwater) dilakukan untuk mengkaji kerentanan airtanah di Kota Banda Aceh, Provinsi Aceh. Metode GOD merupakan metode yang dilakukan dengan mengevaluasi tiga parameter yaitu jenis akuifer, jenis litologi diatas akuifer dan kedalaman muka airtanah. Penelitian ini bertujuan memetakan daerah yang berpotensi terjadi pencemaran berdasarkan tingkat kerentanan air tanah dengan menggunakan metode GOD, di Kota Banda Aceh. Hasil dari penelitian menunjukkan tingkat kerentanan airtanah intrinsik berdasarkan metode GOD berkisar pada nilai sedang sampai tinggi. Zona sedang berdasarkan metode ini ditunjukkan pada nilai indeks 0.45-0.5 yang mencakup beberapa daerah seperti Kuta Alam, Kutaraja, Meuraksa, Jaya Baru, Banda Raya, Lueng Bata, dan Baiturrahman. Dan daerah dengan indeks tinggi mencakup kecamatan Syiah Kuala dan Ulee Kareng dengan nilai 0.52-0.69. Kondisi litologi pada daerah penelitian menunjukkan tipe akuifer yang sejenis yaitu sistem akuifer aluvial. The vulnerability of contaminated groundwater caused by human activity. Thus, the quantity and quality of groundwater need more attention. The application of GOD (Groundwater Occurrence, Overlaying Lithology and Depth of Groundwater) methods is done for a review of groundwater vulnerability in Banda Aceh City, Aceh Province. The GOD method is a method by investigating three parameters, they are: type of aquifer, type of lithology above the aquifer, and depth of groundwater table. This study aims to map areas with potential contamination based on the level of groundwater vulnerability using the GOD method, in Banda Aceh City, Aceh Province. The result of the research shows that the level of intrinsic groundwater vulnerability in Banda Aceh by the GOD method range from moderate to high. Moderate groundwater vulnerability zone based on this method has an index value of 0.45 - 0.5 covers several areas, they are: Kuta Alam, Kutaraja, Meuraksa, Jaya Baru, Banda Raya, Lueng Bata, and Baiturrahman. And the high index value covers Syiah Kuala and Ulee Kareng with 0.52 - 0.69. The lithology of the studied area shows the same type of aquifer as an alluvial aquifer system. Keywords: groundwater vulnerability, GOD method, aquifer
The Characteristics Of Shoreface Deposits And The Reservoir Implication Of Seulimum Formation, Aceh Besar Hidayat Syah Putra; Rifqan Rifqan; Akmal Muhni; Dewi Sartika
Jurnal Geosains dan Teknologi Vol 4, No 2 (2021): Juli 2021
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jgt.4.2.2021.117-125

Abstract

The shoreface deposits study commonly conducted to characterize the reservoir's physical properties carried out by surface geological data. The physical properties focused on pore space conditions controlled by sedimentary process and tectonic settings in Seulimum Formation. The method used as descriptive analysis and previous study of the area interested. The geological data showed shoreface environmental deposits that can be divided into two types of environmental deposits they are middle shoreface and upper shoreface deposits. These environmental deposits are proven by some features such as bioturbation with an abundant presence of Ophiomorpha in the second stop sites (total 5 stop sites). The first stop site indicates two kinds of environmental deposits by coarse sandstones and mudstones dominated facies presence in the specific beds. Mudclast and hummocky structures also present in the field observation that concludes complex environmental deposits during the quaternary period the formation. Based on characteristics of facies could suggest those sediment products deposited on shallow marine. These wave-dominated coasts generally have an excellent reservoir potential effect on shoreface sands that are laterally continuous and were orientated parallel to the shoreline.
Karakterisasi Sifat Fisik Batupasir Daerah Jantho dan Krueng Raya Menggunakan Uji Gelombang Ultrasonik Marwan Marwan; Rifqan Rifqan; Fadhli Syamsudin
POSITRON Vol 9, No 1 (2019): May Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (987.098 KB) | DOI: 10.26418/positron.v9i1.29843

Abstract

Penelitian sifat fisik batupasir daerah Jantho dan Krueng Raya dilakukan untuk mengetahui karakteristik batuan masing-masing daerah. Karakteristik batuan diamati melalui respon gelombang ultrasonik pada dua frekuensi berbeda untuk mengetahui nilai cepat rambat dan atenuasi gelombang. Sifat fisis yang diukur meliputi porositas, specific gravity, dan koefesien absorpsi. Hasil pengukuran menunjukkan nilai porositas batupasir daerah Jantho dan Krueng Raya memiliki nilai rata-rata 22% dan 25%. Respon cepat rambat yang dihasilkan pada sampel K16 (????=2,86%) dan K33 (????=8%) pada input frekuensi 1MHz bernilai 4040 m/s dan 3797 m/s, serta koefisien atenuasi bernilai 1,824. Sedangkan, respon cepat rambat yang diperoleh pada sampel Jantho tidak terdeteksi pada instrumen pengukuran. Keterbatasan penguatan sinyal dan tingginya kadar prositas tiap sampel berpengaruh besar pada tiap parameter yang diukur. Peninjauan terhadap jenis sampel yang lebih homogen dapat membantu pengamatan respon gelombang yang lebih baik.
Petrographic study of rocks in The Julu Rayeu Formation and the Center of the Geureundong Volcanic in Nisam District, North Aceh District, Aceh Province Dewi Sartika; Millati Amalia Sentosa; Fahri Adrian; Akmal Muhni; Dina Gunarsih; Hidayat Syah Putra; Rifqan Rifqan
Journal of Aceh Physics Society Volume 12, Number 2, April 2023
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v12i2.30888

Abstract

Abstrak. Berdasarkan kondiri geologi, Kecamatan Nisam berada pada Formasi Julu Rayeu dan Batuan Pusat Gunungapi Geureundong. Litologi yang terdapat pada Formasi Julu Rayeu terdiri atas endapan sungai, batupasir tufaan, lempung berlignit, sedangkan litologi pada Batuan Pusat Gunungapi Geureundong yaitu Breksi Andesit. Metode yang digunakan pada penelitian ini meliputi metode pemetaan geologi dan analisis petrografi. Penelitian ini bertujuan untuk mengetahui kondisi geologi dan komposisi mineral penyusun batuan pada daerah penelitian. Berdasarkan hasil penelitian yang telah dilakukan diperoleh kondisi geologi yaitu litologi terdiri dari 4 satuan batuan meliputi batupasir, batupasir tufaan, batulempung, dan endapan kolovium. Hasil analisis petrografi pada batuan beku menurut klasifikasi IUGS (1973) terdiri dari 4 sampel yaitu AU12, AU41, AU72 dan AU73 disebut Andesit, sedangkan batupasir berdasarkan klasifikasi Pettijohn (1975) terdiri dari dua sampel yaitu AU32 dan AU62 disebut Lithic Greywacke. Abstract. Based on geological conditions, Nisam District is located in the Julu Rayeu Formation and the center of the Geureundong Volcanic. The lithology found in the Julu Rayeu Formation consists of river deposits, tuffaceous sandstones, and lignite clays, while the lithology of the central rocks of the Geureundong volcano is andesite breccia. The methods used in this study include geological mapping methods and petrographic analysis. This study aims to determine the geological conditions and constituent mineral composition of the rock in the study area. Based on the results of the research that has been carried out, the geological conditions are obtained, namely lithology consisting of 3 rock units including sandstone, tuffaceous sandstone, claystone, and colluvium deposits. The results of petrographic analysis on igneous rocks according to the IUGS classification (1973) consist of 4 samples namely AU12, AU41, AU72, and AU73 called Andesite, while sandstones based on Pettijohn’s classification (1975) consist of two samples namely AU32 and AU62 called Lithic Greywacke.
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.
PROVENANCE ANALYSIS OF SANDSTONE IN THE SEURELA FORMATION IN JEUMPA DISTRICT, BIREUN REGENCY, ACEH PROVINCE Dewi Sartika; Shafira Putri Rizani; Rifqan Rifqan; Akmal Muhni; Dina Gunarsih; Lia Fitria Rahmatillah; Fahri Adrian; Tika Hapsari
Jurnal Geosaintek Vol. 12 No. 3 (2026)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v12i3.9194

Abstract

Based on geological conditions, the research location is in the Seurela Formation. The Seurela Formation has a lithology consisting of sublitoral calcareous sandstone and mudstone with a Pliocene age. Although the Seurela Formation has been extensively studied regarding its stratigraphy and sedimentology, information concerning sandstone provenance—specifically based on quantitative petrographic analysis and tectonic setting interpretation—remains limited. Consequently, the origin of the sedimentary material and its relationship to the region's tectonic evolution are not yet comprehensively understood. Provenance analysis was conducted on the sandstone using geological mapping and petrography methods. The geological mapping method was carried out by collecting data directly in the field through observations of rock lithology. Meanwhile, the petrography method was analyzed using JMicrovision to calculate the mineral composition in thin sections of the rock. This study was conducted to determine the geological conditions and provenance of the sandstone in the Seurela Formation at the research location. Based on the research that has been done, the results indicate that the Seurela Formation is found with alternating carbonate silt sandstone. Provenance analysis at the research location was conducted on four sandstone samples with codes OC52, OC57, OC25, and OC27. Provenance analysis was performed using a QFL diagram. Based on the origin analysis, the sandstone in the Seurela Formation indicates from a tectonic recycling orogen and an eroded arc environment.
Co-Authors Akmal Muhni Dewi Sartika Dewi Sartika Dina Gunarsih Fadhli Syamsudin Fahri Adrian Gartika Setiya Nugraha Hidayat Syah Putra Hidayat Syah Putra Hidayat Syah Putra Hidayat Syah Putra Lia Fitria Rahmatillah Marwan Abu Bakar Millati Amalia Sentosa Muhammad Arief Akbar Muhammad Ridha Adhari Shafira Putri Rizani Tika Hapsari