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  <title>ANALISIS GELOMBANG GEORADAR UNTUK SSTUDI PERLAPISAN SEDIMEN PANTAI LAMPANAH LEUNGAH, ACEH BESAR</title>
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  <namePart>BUKHORI MAHA</namePart>
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  <place>
   <placeTerm type="text">Banda Aceh</placeTerm>
   <publisher>Universitas Syiah Kuala</publisher>
   <dateIssued>2018</dateIssued>
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  <languageTerm type="text">Indonesia</languageTerm>
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 <note>ABSTRAK&#13;
Kajian sedimentasi memerlukan gambaran awal kondisi perlapisan material bawah permukaan sebelum dilakukan eksplorasi lebih lanjut. Pada penelitian ini telah dilakukan pengukuran metode Ground Penetrating Radar (GPR) di kawasan pantai Desa Lampanah Leungah, Mukim Lampanah, Kecamatan Seulimeum, Kabupaten Aceh Besar untuk mengetahui struktur perlapisan pantai dengan pola refleksi pada tampilan radargram. Pengukuran data GPR dilakukan pada 7 lintasan, 5 lintasan arah Utara-Selatan tegak lurus dengan garis pantai, sedangkan 2 lintasan dibuat memotong kelima lintasan tersebut dalam arah Timur-Barat untuk validasi. Data pengukuran yang diperoleh berupa reflektor dalam bentuk radargram yang menggambarkan penampang bawah permukaan. Pengolahan data dilakukan dengan menggunakan software GRED. Hasil analisis menunjukkan bahwa struktur perlapisan bawah permukaan terbedakan atas 4 lapisan sampai kedalaman 6 m. Lapisan paling atas terdiri dari pasir dan tanah liat, kemudian diikuti oleh lapisan pasir, kemudian lapisan pasir dan kerikil, dan lapisan pasir, kerikil, serta batuan dasar dibawahnya. &#13;
Kata kunci: Ground Penetrating Radar (GPR), perlapisan sedimen, radargram&#13;
&#13;
ABSTRACT&#13;
Study of sedimentation requires preliminary information of subsurface before further exploration planned. Ground Penetrating Radar (GPR) measurement were conducted in coastal area of Lampanah Leungah, Lampanah Mukim, Seulimeum District, Aceh Besar Regency, to study the layering structure of coastal area based on radargram display. The GPR data were collected along 7 profiles; 5 profiles in North-South direction crossing to coastline and the profiles in East-West direction parallel to the coastline. The observed data displayed in the form reflectors as rdargram imaging cross-section of subsurface. Data processing were done using GRED software. The processed data show that the structures of the surface formed by 4 layers up to 6 m depth. The top layer consist of sand and clay deposits, followed by sand layer, sand and gravel, and the underlying bedrock.&#13;
&#13;
Keywords: Ground Penetrating Radar (GPR), Layering of sediments, radargram&#13;
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