Identifikasi Persebaran Batubata dugaan Situs Purbakala Menggunakan Metode Geolistrik Resistivitas Konfigurasi Wenner di Kabupaten Bondowoso

Fadhlurrohman, Hanif Dhiyaz `Ulhaq (2021) Identifikasi Persebaran Batubata dugaan Situs Purbakala Menggunakan Metode Geolistrik Resistivitas Konfigurasi Wenner di Kabupaten Bondowoso. Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.

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Abstract

Penemuan struktur batubata kuno di Desa Alas Sumur, Kecamatan Pujer Kabupaten Bondowoso oleh seorang penggali sumur menjadi menarik untuk diteliti, karena selama ini Kabupaten Bondowoso hanya ada Situs Megalithikum. Maka perlu dilakukan penelitian yang dapat menggambarkan kondisi bawah permukaan agar membuktikan penemuan tersebut. Pada penelitian ini digunakan metode geolistrik yang memiliki kelebihan dalam mengontrol kedalaman disesuaikan dengan kebutuhan penelitian dan sifatnya yang tidak merusak. Metode geolistrik resistivitas dapat digunakan untuk menggambarkan kondisi bawah permukaan secara lateral dan vertikal. Metode Geolistrik resistivitas memanfaatkan perbedaan nilai potensial dari injeksi kuat arus yang mampu memberikan gambaran yang baik terkait bawah permukaan melalui penampang sebaran nilai resistivitas yang dihasilkan. Konfigurasi yang digunakan pada penelitian ini yaitu konfigurasi Wenner yang sangat sensitif terhadap perubahan lateral setempat dan dangkal. Penelitian ini bertujuan untuk mengetahui kondisi bawah permukaan dan persebaran bata dugaan situs purbakala. Terdapat 4 lintasan dengan Panjang untuk lintasan 1,3, dan 4 sepanjang 48 meter sedangkan lintasan 2 sepanjang 96 meter. Data hasil pengukuran di lapangan diolah dengan perangkat lunak Res2dinv. Berdasarkan tugas akhir ini, di dapat litologi batuan breksi, batuan andesit, lempung, dan lempung pasiran. Nilai resistivitas Anomali terdeteksi dengan range nilai (19 - 25Ωmeter) yang diduga sebagai batubata. Anomali tersebut terdapat pada lintasan 1, 3, dan 4. Berdasarkan penggabungan antar lintasan didapatkan pola arah seperti hurif L pada lintasan 1 dan 4 dengan kedalaman yang sama pada meter 3 dibawah permukaan dan ketebalan 2 meter. Maka perlu dilakukan eksvakasi sebagai pengembangan validasi cerita sejarah tersebut. ====================================================================================================== The discovery of ancient brick structures in Alas Sumur Village, Pujer Sub-district, Bondowoso Regency by a well digger is interesting to study, because so far Bondowoso Regency only has Megalithic Sites. For that reason, it is necessary to do research that can describe the subsurface conditions in order to prove these findings. In this study, the geoelectric method is used which has the advantage of controlling the depth according to research needs with non-destructive nature. The resistivity geoelectric method can be used to describe the subsurface conditions laterally and vertically. The resistivity geoelectric method utilizing the difference in potential values from the injection of current which provides a good picture of the subsurface through the cross-section of the distribution of the resulting resistivity values. The configuration used in this study is the Wenner configuration which is very sensitive to local and shallow lateral changes. This study aims to determine the subsurface conditions and the distribution of bricks in the alleged archaeological sites. This research was conducted in Alas Sumur Village, Pujer Sub-district, Bondowoso District. There are 4 tracks with a length of 1,3, and 4 tracks that are 48 meters long, while track 2 is 96 meters long. The measurements data in the field were processed using the Res2dinv software. From this final project, the lithology of breccia, andesite, clay, and sandy clay can be obtained. Anomali resistivity values were detected with a range of values (19 - 25Ωmeters) which were suspected as bricks. The Anomali is found on paths 1, 3, and 4. Based on the combination between the tracks, we obtained a direction pattern like the letter L on tracks 1 and 4 with the same depth at 3 meters below the surface and a thickness of 2 meters. Therefore, it is necessary to carry out excavations as a validation development of the historical story.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Batubata, Bondowoso, Geolistrik, Resistivitas, Wenner, Bricks, Bondowoso, Geoelectric, Resistivity, Wenner
Subjects: C Auxiliary Sciences of History > CC Archaeology
Q Science > QC Physics > QC610.3 Electric conductivity
Q Science > QE Geology > QE571 Sedimentation and deposition. Sediment transport. Erosion.
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geophysics Engineering > 33201-(S1) Undergraduate Thesis
Depositing User: Hanif Dhiyaz Ulhaq Fadhlurrohman
Date Deposited: 26 Aug 2021 07:57
Last Modified: 26 Aug 2021 07:57
URI: https://repository.its.ac.id/id/eprint/89657

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