Alim, Mohammad Istajarul (2019) Pemodelan 2D Magnetotelurik untuk Interpretasi Sistem Panas Bumi. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sistem panas bumi merupakan area bawah permukaan bumi yang menyimpan adanya sirkulasi energi panas. Energi panas yang tersimpan dalam sistem panas bumi dapat dimanfaatkan oleh manusia sebagai energi alternatif yang ramah lingkungan. Menentukan area sistem panas bumi membutuhkan metode eksplorasi geofisika yang memiliki penetrasi cukup dalam dan dapat membedakan struktur tanah berdasarkan nilai tahanan jenis. Salah satu metode yang efektif dalam menentukan sistem panas bumi yaitu metode magnetotelurik. Metode ini menerima sinyal medan listrik dan magnet dari hasil induksi batuan bawah permukaan terhadap aktivitas gelombang elektromagnetik badai matahari dan petir. Sinyal tersebut kemudian dilakukan pengolahan sehingga menghasilkan nilai tahanan jenis. Data tahanan jenis inilah yang kemudian dapat mempresentasikan struktur dari sistem panas bumi baik batuan kedap air, reservoir dan zona intrusi magmatik. Dalam penelitian ini juga dikolaborasikan dengan data pendukung geologi dan geokimia. Dimana sistem panas bumi daerah penelitian ini memiliki kedalaman puncak reservoir sekitar 1000m dibawah permukaan berdasarkan interpretasi seluruh data. Temperatur reservoir diperkirakan sebesar 200°C dan termasuk dalam fluida klorida serta bikarbonat.
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The geothermal systems are subsurface area of the earth that stores heat energy circulation. Heat energy stored in geothermal systems can be used by humans as an eco-friendly alternative energy. Determining the geothermal systems area requires a geophysical exploration method that has deep sufficient penetration which can distinguish soil structures based on the resistivity value. One of effective method for determining the geothermal systems is the magnetotellurics method. This method receives electric and magnetic field signals from the result of subsurface rock induction against the activity of electromagnetic waves of solar and lightning storms. The signals processed to produce the resistivity value. Then, the representation of the structure of the geothermal systems both the impermeable rock, the reservoir, and the magmatic intrusion zone can be calculated. This study also collaborated with supporting data of geology and geochemistry. Where the geothermal systems of the study area have a top depth of the reservoir around 1000m below the surface based on the interpretation of all data. The reservoir temperature is estimated at 200°C where chloride fluid and bicarbonate are included.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSFi 538.3 Ali p-1 2019 |
| Uncontrolled Keywords: | Elektromagnetik, Interpretasi, Magnetotelurik, Sistem Panas Bumi |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences Q Science > QC Physics Q Science > QC Physics > QC20.7.F67 Fourier transformations Q Science > QE Geology > QE601 Geology, Structural T Technology > T Technology (General) > T57.5 Data Processing |
| Divisions: | Faculty of Natural Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Mr Mohammad Istajarul Alim |
| Date Deposited: | 24 Jan 2024 02:00 |
| Last Modified: | 24 Jan 2024 02:00 |
| URI: | http://repository.its.ac.id/id/eprint/64763 |
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