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| Title | : | TOMOGRAFI GEOLISTRIK UNTUK IDENTIFIKASI LITOLOGI PADA LOKASI RENCANA BENDUNG DAN TEROWONGAN DI SULAWESI UTARA |
| Author | : |
Boko Nurdiyanto (1) Drs. Imam Suyanto, M.Si. (2) bambang sunardi (3) Pupung Susilanto (4) |
| Date | : | 0 2016 |
| Keyword | : | tomografi resistivitas,litologi,akuifer,bendungan,terowongan tomografi resistivitas,litologi,akuifer,bendungan,terowongan |
| Abstract | : | Pengukuran geolistrik telah dilakukan untuk mengidentifikasi litologi dan akuifer berdasarkan resistivitas batuan pada lokasi rencana pembangunan bendung dan terowongan di daerah Sulawesi Utara. Survei tiga lintasan menggunakan konfigurasi dipole-dipole dengan 32 elektroda (a = 5,5 m) dan kabel ekstensi 9 elektroda (a = 20 m). Analisa tomografi resistivitas menunjukan daerah survei tersusun oleh tanah berupa lempung pasiran (resistivitas rendah di permukaaan), breksi Tondano (30 –1000 ?m), lapukan tufa Tondano (30 – 80 ?m) dan tufa Tondano (< 30 ?m). Di area bendung pada bagian tepi sungai terdapat tanahtipis, breksi Tondano danlapisan tufa Tondano. Lapisan Tondano daerah terowongan telah mengalami pelapukan menjadi lempung pasiran dengan ketebalan hingga 15 m, sedangkan lapisan dibawahnya berupa breksi tondano yang telah lapuk menjadi pasir kelempungan dengan fragmen kerikil (40 – 125 ?m) hingga bongkah (200 – 2000 ?m) dengan ketebalan 10 – 35 meter. Pada kedalaman 50 m ditemukan intrusi andesit, kekar-kekar pada andesit diisi oleh air.Terdapat setidaknya ada lima akuifer dengan kedalaman sekitar 50 meter diantara lokasi rencana surgetank sampai powerhouse. |
| Group of Knowledge | : | Geofisika |
| Original Language | : | Bahasa Indonesia |
| Level | : | Nasional |
| Status | : |
Published
|
| No | Title | Action |
|---|---|---|
| 1 |
2016 - Jurnal Meteorologi Dan Geofisika - Tomografi Geolistrik Untuk Identifikasi Litologi Pada Lokasi Rencana Bendung Dan Terowongan Di Sulawesi Utara.pdf
Document Type : [PAK] Full Dokumen
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