Wulandhari, Shafitri (2017) Identifikasi Anomali Bawah Permukaan Daerah Kayangan Api, Desa Sendangharjo, Kec. Ngasem, Kab. Bojonegoro Menggunakan Metode Magnetik. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Bojonegoro, Jawa Timur merupakan salah satu daerah dengan cadangan gas yang melimpah. Hal ini dibuktikan dengan adanya semburan gas yang muncul diatas permukaan pada wisata Kayangan Api. Semburan gas muncul karena adanya gas yang merembes ke permukaan bumi melalui rekahan, sehingga dibutuhkan metode geofisika untuk mengidentifikasi posisi serta kedalaman anomali rekahan tersebut. Identifikasi tersebut dilakukan dengan menggunakan metode magnetik dan metode CWT. Rembesan gas di Kayangan Api dikelilingi oleh klosur positif dan berkorelasi dengan klosur negatif dari anomali regional, yang menunjukkan bahwa rembesan gas dikontrol oleh struktur. RTP dari anomali regional pada api abadi berkorelasi dengan anomali negatif hal ini terjadi karena batuan yang ada pada api abadi terkena suhu diatas temperatur Curie sehingga batuan tersebut mengalami demagtisasi. Arah struktur pengontrol atau jalannya rembesan gas di Kayangan Api diduga dari rekahan dangkal. Rekahan dangkal ini membujur dari selatan barat daya menuju utara timur laut. Kedalaman rekahan pada titik semburan gas yaitu 18,82 meter.
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Bojonegoro, East Java is one of the areas with abundant gas reserves. This is evidenced by the existence of a torrent of gas that appears above the surface on a tour of Kayangan Api. Gas blast appeared due to gas seeping to the surface of the Earth through the breach, so the required geophysical methods to identify the position and depth of the clefts anomalies. The identification is done using magnetic method and method of gas Seepage. CWT in Kayangan Api surrounded by klosur positive and negative klosur of correlated with regional anomalies, indicating that gas seepage is controlled by the structure. RTP from a regional anomaly in the eternal fire is correlated with negative anomalies this happens because the rocks on the eternal flame is exposed to temperatures above the Curie temperature so that the rock is experiencing demagtisasi. The direction of the controller or the structure of the course of gas seepage in Kayangan Api allegedly from shallow fissures. This shallow fissures South stretching from the southwest towards the North-East. The depth of fissures on the torrent of gas i.e. 18.82 meters.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 538.727 Wul i |
| Uncontrolled Keywords: | Anomali, CWT, Magnetik, Rekahan, Anomalies, CWT, Magnetic, Fault. |
| Subjects: | Q Science > QC Physics Q Science > QE Geology |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Shafitri Wulandhari . |
| Date Deposited: | 31 Oct 2017 02:34 |
| Last Modified: | 08 Mar 2019 03:51 |
| URI: | http://repository.its.ac.id/id/eprint/44561 |
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