Kristanto, Aisya Nur Hafiyya (2020) Pemetaan Situs Sumberbeji, Jombang Menggunakan Metode Ground Penetrating Radar (GPR). Other thesis, Insitut Teknologi Sepuluh Nopember.
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Abstract
Situs arkeologi berupa sendang dengan struktur batubata yang berasosiasi dengan peradaban Majapahit ditemukan di Desa Kesamben, Kecamatan Ngoro, Kabupaten Jombang. Situs tersebut tersingkap pada kedalaman ±2 m di bawah endapan lahar Gunung Kelud dan memiliki saluran air yang menerus ke arah timur dan barat. Pemetaan struktur situs yang masih terpendam dilakukan menggunakan metode Ground Penetrating Radar (GPR) karena bersifat non-destruktif dan telah banyak digunakan dalam penelitian arkeologi near-surface. Pengukuran GPR dilakukan menggunakan perangkat GPR MALÅ GS dengan frekuensi 4800 MHz pada 29 lintasan yang dibentangkan berarah utara-selatan dan timur-barat di seluruh area penelitian (638456.00E, 9152450.00S - 638606.00E, 9152426.00S dan 638535.00E, 9152463.00S - 638526.00E, 9152415.00S). Data hasil pengukuran diolah menggunakan perangkat lunak MatGPR R-3.1 dengan operasi adjust time-zero, background removal, median filter, inverse amplitude decay, subtract mean dewow, K-L filter, suppress dipping features, dan Gazdag’s migration. Data yang telah diproses dimodelkan dalam profil 1-D dan 3-D untuk memvisualisasikan distribusi situs. Profil 1-D lintasan SB-01 s/d SB-12 mendeteksi adanya anomali struktur batubata ditunjukkan dengan nilai amplitudo tinggi, memiliki nilai konstanta dieletrik 3,429-9 dan kecepatan 0,1-0,162 m/ns yang terletak pada kedalaman 0-6 meter. Anomali yang sama terdeteksi pada lintasan SB-13 dengan kedalaman 0-3 meter. Hasil 3-D menunjukkan ketebalan dinding struktur di sisi timur, utara, dan barat sekitar 2 meter, dan terdapat struktur terdeteksi di tengah kubus dengan dimensi 15 × 25 meter pada kedalaman 2-8 meter. Situs Sumberbeji yang tertimbun berada pada lapisan endapan piroklastik (penimbun) pada kedalaman 0-5 meter dan lapisan paleosoil (dasar) pada kedalaman >5 meter.
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Archaeological site in the form of spring with brick structure associated with Majapahit civilization was found in Kesamben Village, Ngoro District, Jombang Regency. The site is exposed at a depth of ± 2 m below the Kelud Mountain lava deposit and has continuous waterways to the east and west. Ground Penetrating Radar (GPR) method has been conducted to map the site, as it is a non-destructive method and often used for sub-surface archaeological investigation. The GPR survey was conducted using GPR MALÅ GS with 4800 MHz central frequency on 29 trajectories which stretched north-south and east-west inside research area (638456.00E, 9152450.00S - 638606.00E, 9152426.00S and 638535.00E, 9152463.00S - 638526.00E, 9152415.00S). The obtained data was processed using MatGPR R-3.1 with adjust time-zero, background removal, median filter, inverse amplitude decay, subtract mean dewow, K-L filter, suppress dipping features, and Gazdag’s migration. The processed data was modeled in 1-D and 3-D profile to visualize the distribution of the site. 1-D profile of trajectory SB-01 to SB-12 detected an anomaly of the bricks structure indicated by high amplitude, has a dielectric constant value of 3.429-9 and velocity of 0.1-0.162 m / ns located at depths of 0-6 meters . The same anomaly was detected on the SB-13 trajectory at a depth of 0-3 meters. The 3-D result shows the wall thickness of the structure on the east, north, and west sides is around 2 meters, and there is a structure detected in the middle of the cube with dimensions of 15 × 25 meters at a depth of 2-8 meters. The buried Sumberbeji site was built on paleosoil which starts at the depth of 5 meters and buried by ±5 meters thick of pyroclastic deposit.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | geoarkeologi, ground penetrating radar, permitivitas dielektrik, Situs Sumberbeji geoarchaeology, ground penetrating radar, relative dielectric permittivity, Sumberbeji site |
| Subjects: | C Auxiliary Sciences of History > CC Archaeology |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geophysics Engineering > 33201-(S1) Undergraduate Thesis |
| Depositing User: | Aisya Nur Hafiyya Kristanto |
| Date Deposited: | 27 Aug 2020 06:07 |
| Last Modified: | 14 Jun 2023 06:38 |
| URI: | http://repository.its.ac.id/id/eprint/78430 |
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