S FIS 0905754 Table of content
DAFTAR ISI
ABSTRAK ......................................................................................................... i
ABSTRACT ....................................................................................................... ii
KATA PENGANTAR ....................................................................................... iii
UCAPAN TERIMA KASIH............................................................................. iv
DAFTAR ISI ...................................................................................................... v
DAFTAR GAMBAR ......................................................................................... viii
DAFTAR TABEL.............................................................................................. ix
DAFTAR LAMPIRAN ..................................................................................... x
BAB I PENDAHULUAN .................................................................................. 1
1.1 Latar Belakang.................................................................................... 1
1.2 Rumusan Masalah............................................................................... 2
1.3 Tujuan Penelitian ................................................................................ 2
1.4 Manfaat Penelitian .............................................................................. 3
1.5 Struktur Organisasi Skripsi ................................................................. 3
BAB II KAJIAN PUSTAKA ............................................................................ 5
2.1 Teori Metode Geomagnetik ................................................................ 5
2.1.1 Gaya Magnetik (F) .................................................................... 5
2.1.2 Kuat Medan Magnetik (H) ........................................................ 5
2.1.3 Intensitas Magnetik (M) ............................................................ 6
2.1.4 Induksi Magnetik (B) ................................................................ 6
2.1.5 Suseptibilitas Magnetik (I) ........................................................ 6
2.2 Medan Magnetik Bumi ....................................................................... 7
2.2.1 Medan Magnet Utama Bumi (Main Field) ............................... 10
2.2.2 Medan Magnet Luar Bumi (Eksternal Field)............................ 10
Septian Taufiq Heryanto, 2015
Identifikasi Struktur Geologi Bawah Permukaan Dasar Laut Berdasarkan Interpretasi Data
Anomali Magnetik Di Perairan Teluk Tolo Sulawesi
Universitas Pendidikan Indonesia | repository.upi.edu | perpustakaan.upi.edu
2.2.3 Medan Magnet Kerak Bumi (Crustal Field) ............................. 10
2.3 Variasi Medan Magnet Bumi ............................................................. 11
2.3.1 Variasi Sekuler .......................................................................... 11
2.3.2 Variasi Harian ........................................................................... 12
2.3.3 Badai Magnetik ......................................................................... 12
2.3.4 Anomali Medan Magnet ........................................................... 13
2.4 Suseptibilitas Magnetik Batuan dan Mineral...................................... 13
2.5 Tipe Mineral Magnetik ....................................................................... 15
2.5.1 Diamagnetik .............................................................................. 15
2.5.2 Paramagnetik ............................................................................. 15
2.5.3 Ferromagnetik ........................................................................... 16
2.6 Anomali Magnetik .............................................................................. 16
2.6.1 Anomali Magnetik Total ........................................................... 17
2.6.2 Anomali Magnetik Regional dan Anomali Magnetik Residual 17
2.7 Trend Surface Analysis ...................................................................... 19
2.8 Kondisi Geologi Pulau Sulawesi ........................................................ 22
2.9 Stratigrafi Daerah Penelitian .............................................................. 24
2.10 Sesar dan Anomali Magnetik ............................................................. 25
BAB III METODEPENELITIAN ................................................................... 27
3.1 Metode dan Desain Penelitian ............................................................ 27
3.2 Lokasi Daerah Penelitian .................................................................... 28
3.3 Alur Penelitian .................................................................................... 29
3.4 Teknik Pengambilan Data .................................................................. 30
3.4.1 Alat dan Bahan .......................................................................... 30
3.4.2 Akusisi Data .............................................................................. 30
3.5 Tahap Pengolahan Data ...................................................................... 32
3.5.1 Koreksi Harian (Diurnal Correction) ........................................ 32
3.5.2 Koreksi IGRF (International Geomagnetic Reference Field)... 33
3.5.3 Perhitungan Anomali Magnetik Total ....................................... 33
Septian Taufiq Heryanto, 2015
Identifikasi Struktur Geologi Bawah Permukaan Dasar Laut Berdasarkan Interpretasi Data
Anomali Magnetik Di Perairan Teluk Tolo Sulawesi
Universitas Pendidikan Indonesia | repository.upi.edu | perpustakaan.upi.edu
3.5.4 Pemisahan Anomali Regional dan Anomali Residual ............... 34
3.6 Interpretasi .......................................................................................... 37
BAB IV HASIL DAN PEMBAHASAN........................................................... 39
4.1 Pemrosesan Data................................................................................. 39
4.2 Peta Kontur Anomali Magnetik Residual ........................................... 39
4.3 Pemodelan Anomali Magnetik ........................................................... 42
4.3.1 Lintasan A – A’ ......................................................................... 42
4.3.2 Lintasan B – B’ .......................................................................... 44
4.3.3 Lintasan C – C’ .......................................................................... 46
4.4 Interpretasi Struktur Geologi .............................................................. 48
BAB V SIMPULAN DAN SARAN .................................................................. 50
5.1 Simpulan ............................................................................................. 50
5.2 Saran ................................................................................................... 50
DAFTAR PUSTAKA ........................................................................................ 51
Septian Taufiq Heryanto, 2015
Identifikasi Struktur Geologi Bawah Permukaan Dasar Laut Berdasarkan Interpretasi Data
Anomali Magnetik Di Perairan Teluk Tolo Sulawesi
Universitas Pendidikan Indonesia | repository.upi.edu | perpustakaan.upi.edu
ABSTRAK ......................................................................................................... i
ABSTRACT ....................................................................................................... ii
KATA PENGANTAR ....................................................................................... iii
UCAPAN TERIMA KASIH............................................................................. iv
DAFTAR ISI ...................................................................................................... v
DAFTAR GAMBAR ......................................................................................... viii
DAFTAR TABEL.............................................................................................. ix
DAFTAR LAMPIRAN ..................................................................................... x
BAB I PENDAHULUAN .................................................................................. 1
1.1 Latar Belakang.................................................................................... 1
1.2 Rumusan Masalah............................................................................... 2
1.3 Tujuan Penelitian ................................................................................ 2
1.4 Manfaat Penelitian .............................................................................. 3
1.5 Struktur Organisasi Skripsi ................................................................. 3
BAB II KAJIAN PUSTAKA ............................................................................ 5
2.1 Teori Metode Geomagnetik ................................................................ 5
2.1.1 Gaya Magnetik (F) .................................................................... 5
2.1.2 Kuat Medan Magnetik (H) ........................................................ 5
2.1.3 Intensitas Magnetik (M) ............................................................ 6
2.1.4 Induksi Magnetik (B) ................................................................ 6
2.1.5 Suseptibilitas Magnetik (I) ........................................................ 6
2.2 Medan Magnetik Bumi ....................................................................... 7
2.2.1 Medan Magnet Utama Bumi (Main Field) ............................... 10
2.2.2 Medan Magnet Luar Bumi (Eksternal Field)............................ 10
Septian Taufiq Heryanto, 2015
Identifikasi Struktur Geologi Bawah Permukaan Dasar Laut Berdasarkan Interpretasi Data
Anomali Magnetik Di Perairan Teluk Tolo Sulawesi
Universitas Pendidikan Indonesia | repository.upi.edu | perpustakaan.upi.edu
2.2.3 Medan Magnet Kerak Bumi (Crustal Field) ............................. 10
2.3 Variasi Medan Magnet Bumi ............................................................. 11
2.3.1 Variasi Sekuler .......................................................................... 11
2.3.2 Variasi Harian ........................................................................... 12
2.3.3 Badai Magnetik ......................................................................... 12
2.3.4 Anomali Medan Magnet ........................................................... 13
2.4 Suseptibilitas Magnetik Batuan dan Mineral...................................... 13
2.5 Tipe Mineral Magnetik ....................................................................... 15
2.5.1 Diamagnetik .............................................................................. 15
2.5.2 Paramagnetik ............................................................................. 15
2.5.3 Ferromagnetik ........................................................................... 16
2.6 Anomali Magnetik .............................................................................. 16
2.6.1 Anomali Magnetik Total ........................................................... 17
2.6.2 Anomali Magnetik Regional dan Anomali Magnetik Residual 17
2.7 Trend Surface Analysis ...................................................................... 19
2.8 Kondisi Geologi Pulau Sulawesi ........................................................ 22
2.9 Stratigrafi Daerah Penelitian .............................................................. 24
2.10 Sesar dan Anomali Magnetik ............................................................. 25
BAB III METODEPENELITIAN ................................................................... 27
3.1 Metode dan Desain Penelitian ............................................................ 27
3.2 Lokasi Daerah Penelitian .................................................................... 28
3.3 Alur Penelitian .................................................................................... 29
3.4 Teknik Pengambilan Data .................................................................. 30
3.4.1 Alat dan Bahan .......................................................................... 30
3.4.2 Akusisi Data .............................................................................. 30
3.5 Tahap Pengolahan Data ...................................................................... 32
3.5.1 Koreksi Harian (Diurnal Correction) ........................................ 32
3.5.2 Koreksi IGRF (International Geomagnetic Reference Field)... 33
3.5.3 Perhitungan Anomali Magnetik Total ....................................... 33
Septian Taufiq Heryanto, 2015
Identifikasi Struktur Geologi Bawah Permukaan Dasar Laut Berdasarkan Interpretasi Data
Anomali Magnetik Di Perairan Teluk Tolo Sulawesi
Universitas Pendidikan Indonesia | repository.upi.edu | perpustakaan.upi.edu
3.5.4 Pemisahan Anomali Regional dan Anomali Residual ............... 34
3.6 Interpretasi .......................................................................................... 37
BAB IV HASIL DAN PEMBAHASAN........................................................... 39
4.1 Pemrosesan Data................................................................................. 39
4.2 Peta Kontur Anomali Magnetik Residual ........................................... 39
4.3 Pemodelan Anomali Magnetik ........................................................... 42
4.3.1 Lintasan A – A’ ......................................................................... 42
4.3.2 Lintasan B – B’ .......................................................................... 44
4.3.3 Lintasan C – C’ .......................................................................... 46
4.4 Interpretasi Struktur Geologi .............................................................. 48
BAB V SIMPULAN DAN SARAN .................................................................. 50
5.1 Simpulan ............................................................................................. 50
5.2 Saran ................................................................................................... 50
DAFTAR PUSTAKA ........................................................................................ 51
Septian Taufiq Heryanto, 2015
Identifikasi Struktur Geologi Bawah Permukaan Dasar Laut Berdasarkan Interpretasi Data
Anomali Magnetik Di Perairan Teluk Tolo Sulawesi
Universitas Pendidikan Indonesia | repository.upi.edu | perpustakaan.upi.edu