An mapping of the potential Manganese mining zones has been done at Naip areas of the South Central Timor Regency using geomagnetic method. The purpose of this study was to determine the bedding structure and the subsurface patterns of rocks distribution that suspected contain manganese. The result of research were interpreted qualitatively and quantitatively. Qualitative interpretation shows that the low anomaly between -10 to <50 nT is mostly in the southern part and the high anomaly is ? 50 to 220 nT, generally in the northern part of the study area. The low anomaly is interpreted as clay and high anomaly is interpreted as limestone associated with manganese and metamorphic rocks. For quantitative interpretation, the presence of manganese is suspected to be associated with limestone at a depth of 6.2-100 m in body 1A incision 1 (A-A1) with susceptibility value 0.008116, body 1B incision 2 (B-B1) which has susceptibility value 0.001967 and body 1C incision 3 (C-C1) for the susceptibility value of 0.006407. Body 1A incision 1 (A-A1) is spread from west to northeast direction, body 1B incision 2 (B-B1) starts south to north and body 1C incision 3 (C-C1) is southwest toward northeast.
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Author Name: Hadi Imam Sutaji, Abdul Wahid, Ali Warsito
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Keywords: Manganese, susceptibility, geomagnetic methods