PRADIBTA, FIKRI (2014) EKSPLORASI POTENSI BIJIH BESI DENGAN METODE GEOMAGNET DAN METODE RESISTIVITY PADA IUP PT. KOLINGKAS DI DESA SUKANEGARA TANJUNG BINTANG LAMPUNG. Other thesis, UPN "Veteran" Yogyakarta.
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Abstract
Pendugaan penyebaran bijih besi pada IUP PT. KOLINGKAS yang terletak di desa Sukanegara, Tanjung Bintang, Lampung, ini menggunakan metode geolistrik dan geomagnet. Pengukuran geolistrik menggunakan resistivity meter model ARES (Automatic Resistivity) dan pengukuran geomagnet menggunakan alat magnetometer GEM SYSTEM. Pada prinsipnya pengukuran geolistrik adalah untuk mendapatkan nilai tahanan jenis dari batuan penyusun perlapisan bawah permukaan, sedangkan pengukuran geomagnet adalah untuk mengetahui nilai anomali magnetik yang timbul dari batuan penyusun lapisan bawah permukaan. Dengan kedua metode tersebut diharapkan dapat diketahui keberadaan bijih besi besi. Setelah keberadaan bijih besi dapat diketahui, selanjutnya dilakukan permodelan semi 3 dimensi agar dapat diketahui penyebaran bijih Besinya. Permodelan ini menjadi tujuan utama dari penelitian di desa Sukanegara, Tanjung Bintang, Lampung, yaitu untuk mengetahui bentuk penyebaran bijih Besi yang ada di lokasi penelitian. Dengan demikian dapat dijadikan pedoman dalam mengadakan penelitian lebih lanjut, yaitu spot drilling. Hasil pendugaan sementara bijih Besi diperoleh kedalaman rata-rata sekitar 5-10m akan tetapi ada kemungkinan menerus ke bawah hingga kedalaman 50m. Kata kunci : Bijih besi, Geolistrik, Resistivity, Geomagnet, Permodelan 3D Prediction of the spread of iron ore in the region of PT. Kolingkas the place in Sukanegara village, Tanjung Bintang, Lampung, using geoelectric and geomagnetic methods. Geoelectric measurements using a resistivity meter model of ARES (Automatic Resistivity) and geomagnetic measurements using a magnetometer GEM SYSTEM. In principle, geoelectric measurements is to obtain resistivity values of the constituent rock bedding under the surface , while the geomagnetic measurement is to determine the value of the magnetic anomaly arising from subsurface rock constituent . With these two methods it is known the existence of iron ore. Having in mind the existence of iron ore to the method followed by the 3 dimensional modeling to determine the form of the spread of the iron ore. This is the main objective of this research is to determine the form of iron ore dissemination of the research sites. By knowing the shape of the distribution can be used as a guide in further research, in this case is the spot drilling and geoelectric measurements to a larger area considering this study can only cover 32 hectares of the 100 hectares of existing area. Iron ore estimation results obtained while the average depth of approximately 5-10m but there is the possibility of being down to a depth of 50m. Keyword : Iron ore, Geoelectric, Resistivity, Chargeability, Geomagnetic, 3D modeling
| Item Type: | Thesis (Other) |
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| Subjects: | T Technology > TN Mining engineering. Metallurgy |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eko Suprapti |
| Date Deposited: | 18 May 2016 07:01 |
| Last Modified: | 18 May 2016 07:01 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/1486 |
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