Nasution, Hidayani (2013) PETA SEBARAN UNSUR BESI (FE) PADA SUMUR GALI DI KELURAHAN MABAR KECAMATAN MEDAN DELI KOTA MEDAN. Undergraduate thesis, UNIMED.
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Abstract
Penelitian ini bertujuan mengetahui: (1) kadar besi (Fe) pada sumur gali di Kelurahan Mabar, Kecamatan Medan Deli, Kota Medan, (2) peta sebaran unsur besi (Fe) pada sumur gali di Kelurahan Mabar, Kecamatan Medan Deli, Kota Medan dan (3) ada keterkaitan sebaran induk bahan tanah secara geologi dengan kadar besi (Fe) pada sumur gali di Kelurahan Mabar Kecamatan Medan Deli Kota Medan.Populasi dalam penelitian ini 2375 sumur gali yang terdapat di Kelurahan Mabar. Sementara yang menjadi sampel dalam penelitian ini adalah sebanyak 25 sumur gali yang ditentukan secara acak sistematis (systematic random sampling) dengan sistem grid 2x2cm pada peta administrasi skala 1 : 15000. Metode pengumpulan data dengan observasi, studi dokumenter dan teknik pengukuran sedangkan teknik analisis data yang digunakan adalah analisis deskriptif.Hasil penelitian menunjukkan bahwa (1) nilai besi (Fe) air sumur gali pada daerah penelitian mengandung kadar berkisar 0,93869 – 1,91348 ppm. Kadar besi (Fe) tertinggi pada sumur gali terdapat di lingkungan XII dengan nilai 1,93869 ppm, sedangkan untuk kadar besi terendah pada air sumur gali terdapat di Lingkungan XV dengan nilai 0,93869 ppm, (2) Kadar unsur besi (Fe) di Kelurahan Mabar tertinggi 1,9 ppm terletak pada koordinat 98040’51’’ dan 3039’24,6’’ yang arah sebaran kontur besi (Fe) mengarah ke sebelah Utara, Barat, Barat Laut dan Selatan. Sebaran unsur besi (Fe) yang paling rapat terletak di Selatan dan sebaran unsur besi (Fe) yang agak jarang terletak di Barat Laut (3) bahan induk tanah secara geologi pada daerah penelitian termasuk pada formasi Medan berupa pasir dan lempung. Tekstur tanah I pasir dan lempung banyak mengandung unsur besi (Fe) dikarenakan ada pada batuan sedimen yang dibentuk secara kimia karena terjadi proses pengendapan..
Item Type: | Thesis (Undergraduate) | ||||||
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Call Number: | 551.49 Nas p | ||||||
Keywords: | air; air bersih; sumber air bersih; air tanah; dangkal | ||||||
Subjects: | G Geography. Anthropology. Recreation > G Geography (General) | ||||||
Divisions: | Fakultas Ilmu Sosial > Pendidikan Geografi | ||||||
Depositing User: | Mr Renaldi Syafaruddin Akbar | ||||||
Date Deposited: | 02 Sep 2016 04:13 | ||||||
URI: | http://digilib.unimed.ac.id/id/eprint/17800 |
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