Geophysical Study for Discovering The Missing of Lau Ketuken from The Surface at Sulkam Village
Keywords:
geo-electric, resistivity, bore hole, XRDAbstract
Study for the missing lau Ketuken flow has been done in the Sulkam village, Langkat regency, North Sumatera province Indonesia. The search was begun with the use of geo-electric resistivitymeter to identify the subsurface rock structures. The measurement using geo-electric method based on Wenner-Schlumberger configuration. Geo-electric data are processed by using software RES2DINV to show the structure of the subsurface rocks measured. Data bore hole is added as a secondary data to know rock bedding. The outcrops are analyzed using XRD. Then, Match software version 1.9h was applied to knowing the type and nature of mineral rocks and the weight percentage of outcrop rocks. The results show that the subsurface rocks are dominated by sandy clay stones, quartz sand, limestones, and tuffa.
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