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DAFTAR ISI

HALAMAN JUDUL .............................................................................................. i

HALAMAN PENGESAHAN ............................................................................... ii

HALAMAN PERNYATAAN .............................................................................. iii

KATA PENGANTAR .......................................................................................... iv

DAFTAR ISI ......................................................................................................... vi

DAFTAR GAMBAR .......................................................................................... viii

DAFTAR TABEL ................................................................................................ xi

INTISARI ............................................................................................................ xii

ABSTRACT ......................................................................................................... xiii

BAB I PENDAHULUAN

I.1. Latar Belakang ............................................................................................ 1

I.2. Eksplorasi Panasbumi ................................................................................. 2

I.3. Perumusan Masalah .................................................................................... 3

I.4. Tujuan Penelitian ........................................................................................ 3

I.5. Batasan Masalah.......................................................................................... 3

I.6. Waktu dan Tempat Penelitian ..................................................................... 4

BAB II TINJAUAN PUSTAKA

II.1. Tinjauan Geologi ......................................................................................... 5

II.1.1. Geologi Daerah Penelitian .................................................................... 5

II.1.2. Struktur dan Sistem Tektonik Daerah Penelitian .................................. 7

II.2. Tinjauan Geokimia ...................................................................................... 9

II.3. Tinjauan Geofisika ..................................................................................... 11

BAB III DASAR TEORI

III.1. Sistem Panasbumi ..................................................................................... 16

III.2. Prinsip Dasar Metode Gravitasi ............................................................... 17

III.3. Konsep Ekuivalen Stratum ........................................................................ 19

III.4. Reduksi Data Gravitasi ............................................................................. 21

III.4.1. Gravitasi Observasi ............................................................................ 22

III.4.2. Gravitasi Teoritis ............................................................................... 25

III.5. Reduksi Bidang Datar............................................................................... 32

III.6. Analisis Spektrum .................................................................................... 34

III.7. Pemisahan Anomali Regional dengan Residual ....................................... 35

IDENTIFIKASI STRUKTUR GEOLOGI LAPANGAN PANASBUMI "CQ42" MENGGUNAKANMETODE GRAVITASIDENGAN PENAPISAN MOVING AVERAGE DAN ANALISIS SECOND VERTICAL DERIVATIVEAPRIADITAMA DWI SUWARNOUniversitas Gadjah Mada, 2014 | Diunduh dari http://etd.repository.ugm.ac.id/

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III.8. Second Vertical Derivative (SVD) ............................................................ 37

III.9. Pemodelan Gravitasi ................................................................................. 39

BAB IV METODOLOGI PENELITIAN

IV.1. Tahapan Pengolahan ................................................................................ 40

IV.2. Ketersediaan Data .................................................................................... 40

IV.3. Pemetaan Anomali Bouguer Lengkap...................................................... 41

IV.4. Reduksi Bidang Datar .............................................................................. 41

IV.5. Analisis Spektrum .................................................................................... 42

IV.6. Pemisahan Anomali Regional dengan Residual....................................... 43

IV.7. Analisis Struktur ....................................................................................... 44

IV.8. Pemodelan ................................................................................................ 45

BAB V HASIL DAN PEMBAHASAN

V.1. Daerah Penelitian ....................................................................................... 46

V.1.1. Topografi............................................................................................. 46

V.2. Medan Gravitasi Observasi ....................................................................... 47

V.3. Anomali Medan Gravitasi Udara Bebas .................................................... 48

V.4. Penentuan Densitas Bouguer ..................................................................... 48

V.5. Anomali Bouguer Sederhana ..................................................................... 49

V.6. Anomali Bouguer Lengkap ....................................................................... 50

V.7. Anomali Bouguer Lengkap di Bidang Datar ............................................. 51

V.8. Analisis Spektrum ..................................................................................... 52

V.9. Pemisahan Anomali Regional dengan Residual ........................................ 55

V.10. Analisis Struktur Menggunakan SVD ...................................................... 57

V.11. Pemodelan ............................................................................................... 64

BAB VI KESIMPULAN DAN SARAN............................................................. 74

VI.1. Kesimpulan .............................................................................................. 74

VI.2. Saran ......................................................................................................... 75

DAFTAR PUSTAKA .......................................................................................... 76

LAMPIRAN A SCINTREX AUTOGRAV CG-5 ............................................... 78

LAMPIRAN B Tabel Densitas Batuan ................................................................ 82

LAMPIRAN C Grafik vs ........................................................................... 84

LAMPIRAN D Grafik Respon Sayatan SVD ...................................................... 95

LAMPIRAN E Second Vertical Derivative ....................................................... 102

LAMPIRAN F Pemodelan 2,5D ........................................................................ 107

IDENTIFIKASI STRUKTUR GEOLOGI LAPANGAN PANASBUMI "CQ42" MENGGUNAKANMETODE GRAVITASIDENGAN PENAPISAN MOVING AVERAGE DAN ANALISIS SECOND VERTICAL DERIVATIVEAPRIADITAMA DWI SUWARNOUniversitas Gadjah Mada, 2014 | Diunduh dari http://etd.repository.ugm.ac.id/