KURNIAWAN, HANANTO DWI (2019) ESTIMASI SUMBERDAYA TANAH URUG MENGGUNAKAN METODE KONTUR DI IUP TANAH URUG NGADIMIN, DESA HARGOMULYO, KECAMATAN KOKAP, KABUPATEN KULON PROGO, DIY. Other thesis, Universitas Pembangunan Nasional Veteran Yogyakarta.
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Abstract
IUP Ngadimin merupakan salah satu tambang tanah urug di wilayah Kabupaten Kulon Progo, Provinsi Daerah Istimewa Yogyakarta. Penelitian ini dilakukan untuk memberikan estimasi kuantitas sumberdaya tanah urug di Desa Hargomulyo, Kecamatan Kokap, Kabupaten Kulon Progo, dengan luas daerah penelitian 5,2 Ha. Berdasarkan keadaan topografi, geologi, dan genesa pada daerah penelitian maka estimasi sumberdaya dan cadangan di lokasi penelitian dilakukan dengan menggunakan metode Kontur dengan pedoman Rule of Gradual Change. Dasar lain pertimbangan penggunaan metode tersebut karena endapan tanah urug di daerah penelitian mempunyai homogenitas yang tinggi, mudah dilaksanakan, cepat dan hasil penaksiran cukup akurat. Perhitungan estimasi sumberdaya tanah urug dengan menggunakan metode Kontur dimulai dari kontur elevasi tertinggi yaitu 42 mdpl sampai kontur elevasi terendah yaitu 75 mdpl. Penelitian juga menghitung tingkat akurasi estimasi berdasarkan beberapa interval kontur yaitu interval kontur 1 m, 2 m, 5m, dan Tiap Bukit. Hasil perhitungan menggunakan metode Kontur dengan pedoman Rule of Gradual Changes diperoleh volume tanah urug sebesar 652.084,3 m3 pada metode perbidang volume interval kontur 1 m, 704.086,6 m3 pada metode perbidang volume interval kontur 2 m, 760.064,2 m3 pada metode perbidang volume interval kontur 5 m, dan 643.151,6 m3 pada metode perbidang volume interval kontur tiap bukit. Metode perbidang volume interval kontur tiap bukit dijadikan sebagai acuan sebagai keakuratan estimasi sumberdaya. Hasil penelitian interval kontur yang paling akurat adalah metode perbidang volume interval tiap bukit pada keadaan topografi di lokasi penelitian ini setelah itu diikuti metode perbidang volume interval 1 m dengan tingkat akurasi 98,61 %, lalu metode perbidang volume interval kontur 2 m dengan tingkat akurasi 90,53 %, dan metode perbidang volume interval kontur 5 m dengan tingkat akurasi 81,82 %. Sumberdaya tanah urug di daerah penelitian ini masuk dalam kategori sumberdaya mineral tereka (Inferred Mineral Resource), karena kualitas dan kuantitasnya diperoleh sudah pada tahap eksplorasi umum. v ABSTRACT Ngadimin IUP is one of the landfill mines in the Kulon Progo Regency, Yogyakarta Special Province. This research was conducted to provide an estimate of the quantity of land of urug resources in Hargomulyo Village, Kokap District, Kulon Progo Regency, with a research area of 5.2 Ha. Based on the topography, geology, and genesis conditions in the study area, the estimation of resources and reserves at the study site was carried out using the Contour method with the guidelines for Rule of Gradual Change. Another basic consideration is the use of this method because the land of urug deposits in the study area have high homogeneity, are easy to implement, fast and the estimation results are quite accurate. Calculation of estimated land of urug resources using the contour method starts from the highest contour elevation, which is 42 masl to the lowest elevation contour which is 75 masl. The study also calculated the estimated level of accuracy based on several contour intervals, namely 1 m, 2 m, 5m and Each Hill contour intervals. The calculation results using the Contour method with the Rule of Gradual Changes guideline obtained urug soil volume of 652,084.3 m3 in the field method volume of 1 m contour interval, 704,086.6 m3 in the field method of 2 m contour interval volume, 760,064.2 m3 in volume field method 5 m contour interval, and 643,151.6 m3 in the field method of contour interval volume for each hill. The method of crossing the contour interval volume of each hill is used as a reference as the accuracy of resource estimates. The most accurate results of contour interval research are the method of per-hill volume intervals in topographic conditions at the location of this study after that followed by the method of volume field intervals of 1 m with an accuracy rate of 98.61%, then the field method of 2 m contour interval volume with an accuracy level of 90 , 53%, and the field method of volume 5 m contour intervals with an accuracy rate of 81.82%. Land of urug resources in this research area are included in the category of Inferred Mineral Resources, because the quality and quantity are obtained at the general exploration stage.
| Item Type: | Thesis (Other) |
|---|---|
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Sarimin Sarimin |
| Date Deposited: | 11 Jan 2019 07:48 |
| Last Modified: | 11 Jan 2019 07:48 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/17832 |
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