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All Journal POSITRON Journal of Aceh Physics Society Jurnal Geosains dan Teknologi
Rifqan, Rifqan
Department Of Geological Engineering, Faculty Of Engineering, Universitas Syiah Kuala
Earth & Planetary Sciences Energy Engineering Environmental Science Physics

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Journal : Journal of Aceh Physics Society

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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
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.
Co-Authors Akmal Muhni Dewi Sartika Dewi Sartika Fadhli Syamsudin Fahri Adrian Hidayat Syah Putra Hidayat Syah Putra Hidayat Syah Putra Lia Fitria Rahmatillah Marwan Abu Bakar Millati Amalia Sentosa Muhammad Arief Akbar