(2) Location of conducting Channels (Waterway)
Rock Foundation in Conducting Channel (Waterway) is largely a rock unit that is perselingan between the shale, marl sandstones and its current state, which on the surface has been subjected to weathering as deep as 2-4 m long and in some places by Avalanche deposits, only in the Middle, more or less 500 m is the deposition of the breksi volcanic avalanches that are on top of it, consists of the bongkah – bongkah hard andesite among soil weathering soft lempungan.
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