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Journal : Natural B

Avalanche Potential Analysis using Resistivity Method and USLE Method on Ranu Pani Area, Senduro Sub-district of Lumajang Regency Siswo Purnomo; Sunaryo Sunaryo; Luchman Hakim
Natural B, Journal of Health and Environmental Sciences Vol 1, No 3 (2012)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4277.961 KB) | DOI: 10.21776/ub.natural-b.2012.001.03.2

Abstract

Has done research in the Ranu Pani area is one of the area where landslides have its potentiality, due to its location on the edge of the mountains where the soil is clay, slightly, sandy and has a very high fertility rates. One of the methods used to analyze landslide potential is using USLE (Universal Soil Loss Equation). In addition, the resistivity method with dipole-dipole configuration is also used to determine the structure of the soil and slip areas in the hills in the area Ranu Pani. Debris flow obtained from calculations using the USLE method in the second trajectory is equal to 796.5 tons/year, and the third trajectory is equal to 291.506 tons/year. According to the classification level of erosion, Ranu Pani area is an area with very dangerous level of erosion hazard, because the value of debris flow is more than 180 tons/year. With the high value of debris flow erosion, causing higher sedimentation of the lake, because the Ranu Pani lake accommodate most of the debris flow erosion of the hills around it.
Estimation of Structures Under Ancient Archaeological Sites Site of Jabung Temple, Probolinggo, Indonesia Using Geolistrik Resistivity Method Kosmas Isdarmadi; Adi Susilo; Sunaryo Sunaryo
Natural B, Journal of Health and Environmental Sciences Vol 2, No 1 (2013)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.natural-b.2013.002.01.8

Abstract

The sounding of geoelectrical resistivity distribution using dipole-dipole configuration around the Jabung temple site located in the Jabung Candi village, Paiton, Probolinggo District, East Java province, Indonesia has been done by using Resistivitymeter OYO MacOhm. The aim of the research was to determine the distribution and depth of rock below the Jabung temple area also as an information for investigation and discovery efforts of ancient objects which are still burried. Aquisition are taken by ten lines and ±20.042 m2 of coverage area. Line 1, 2, 3, 4, 5, 6 located around in Menara Sudut temple at length of measurement line12 m and at a distance of electrode spacing are 1 m, where lines 1 and 4 located in outcrop of Menara Sudut tample. While lines 7, 8, 9, and 10 located in all area of Jabung temple. Lines 7 and 8 have length of measurement lines 150 m with spacing 10 m, while lines 9 and 10 have length of measurement lines 200 m with spacing 4 m, where line 8 located pass to main Jabung tample. The processing of data was using RES2DINV software. Resistivity values that are used to determine the temple rock is the resistivity value of sandy clay. Base on geoelectrical investigation and interpretation shows the sandy clay as temple rock with resistivity value 33 Ω.m to 92.6 Ω.m on average depth of 1.79 m and the others remain of tample rock around the main Jabung tample. This research shows geoelectrical method is good idea to subsurface sounding especially for archeology case, it caused this method is simple and more cheap than ekskavation method.