MEKO, KRISTIANA (2016) IDENTIFIKASI ZONA MINERALISASI GRAFIT BERDASARKAN METODE GEOLISTRIK POLARISASI TERIMBAS KONFIGURASI DIPOLE - DIPOLE DI DAERAH “TAMBOLI” KABUPATEN KOLAKA PROVINSI SULAWESI TENGGARA IDENTIFICATION GRAFIT MINERALIZED ZONE BASED ON GEOELECTRICAL METHOD INDUCED POLARIZATION DIPOLE – DIPOLE ARRAY IN TAMBOLI, KOLAKA DISTRICT, SOUTHEAST SULAWESI PROVINCE. Other thesis, UPN ''VETERAN'' YOGYAKARTA.
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Abstract
Research Geolistrik Dipole - dipole Configuration conducted to determine the
potential of Graphite Mineral underground in the research area. Geoelectric research
Induced Polarization implemented dipole-dipole configuration , and resistence variation
Determination underground and chargebility on vertically or horizontally. In order to
find graphite mineral existence , then the purpose in this research was getting resistance
of litologi traversed the geoelectric line on vertically and horizontally , so it suspected the
spread of graphite mineral deposits.
The data obtained were secondary data consisted of 15 lines , with a length of
line reached 200 meters with 5 meters spacing . The field data processed was done by
software RES2DINV, Rockwork14 and Map Info. RES2DINV software to aimed get the
2D modeling of subsurface from resistivity and chargeability values. While, the software
rockwork 14 and Map Info were to implemented describe the pattern of spread of the
graphite in 3D based on the value of chargeability.
Model 3D and 2D pseudosection could be described where in graphite mineral
was a conductive mineral that the mineral graphite associated with metasedimen, filit and
sekis, the value resistivity were 150-1000 Ohm.m marked by dark blue to red. In another
word, the value of chargeability mineral graphite in place of research were 100 - 400
msec were marked by green to purple . After finishing the process and interpretation the
line deemed containeing mineral graphite were line 4-7 , 8-11 , 13 and 15. Based on the
interpretation of the 15 line, it could be seen the spread of mineral graphite is of East
Southeast - Northwest .
Keywords : Resistivity, Induced Polarization, Graphite Mineral, Tamboli
Penelitian Geolistrik konfigurasi Dipole – dipole telah dilakukan untuk
mengetahui potensi adanya Mineral Grafit bawah permukaan di daerah penelitian.
Penyelidikan geolistrik IP ini menggunakan konfigurasi dipole-dipole, dan hanya
dibatasi pada penentuan variasi tahanan jenis bawah permukaan tanah dan chargebility
secara vertikal maupun horizontal. Mengingat yang dicari adalah keberadaan mineral
grafit, maka tujuan penelitian ini adalah memperoleh nilai tahanan jenis litologi batuan
yang dilalui lintasan geolistrik secara vertikal dan horizontal, sehingga dapat menduga
penyebaran endapan mineral grafit.
Data yang diperoleh merupakan data sekunder yang terdiri dari 15 lintasan,
dengan panjang lintasan mencapai 200 meter dengan spasi 5 meter. Pengolahan data
lapangan dilakukan dengan menggunakan software Res2DinV, Rockwork14 dan Map
Info. software Res2Dinv untuk mendapatkan pemodelan 2D bawah permukaan dari nilai
resistivity dan chargeability sedangkan Software Rockwork 14 dan Map Info digunakan
untuk menggambarkan pola penyebaran grafit secara 3D berdasarkan nilai chargeability.
Pada model 3D dan penampang 2D dapat dilakukan interpretasi dimana mineral
grafit merupakan mineral yang konduktif yang dapat berasosiasi dengan
batumetasedimen, Filit dan Sekis, rentang nilai resitivity 150 - 1000 Ohm.m yang
ditandai dengan warna biru tua sampai merah. Nilai dari chargeability untuk mineral
grafit pada tempat penelitian adalah 100 – 400 msec yang ditandai dengan warna hijau
sampai ungu. Setelah melakukan pengolahan dan interpretasi maka lintasan yang
dianggap mengandung mineral grafit yaitu lintasan 4-7, 8-11, 13 dan 15. Berdasarkan
interpretasi ke-15 lintasan dapat diketahui persebaran mineral grafit yaitu dari Tenggara –
Baratlaut.
Kata kunci : Resistivitas, induksi polarisasi, Mineral Grafit, Tamboli
| Item Type: | Thesis (Other) |
|---|---|
| Subjek: | Q Science > Q Science (General) |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Geography |
| Depositing User: | Erny Azyanti |
| Date Deposited: | 09 Nov 2016 04:23 |
| Last Modified: | 09 Nov 2016 04:23 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/8600 |
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