EFFECT OF BARRIER ON MINERAL CHANGE IN TANJUNG BUNGA BEACH, MAKASSAR

Tanjung Bunga beach area, Makassar in development concept of "Water Front City" is part of "Waterfront Development" as development concept of coastal area with the construction of settlements infrastructure and coastal tourism. The burden in coastal sedimentary area may damage the minerals, change size and shape of minerals that will reduce the ability, formation strength of land, and coastal area functions. Tanjung Bunga beach, characterized as spit beach were changing in gradual, vertical sediment composed by coastal sediment and a thickly fluvial-deltaic layer, a resistivity of 0.1 - 402 Ohm m, with value of 1.3 Ф - 2.4 Ф (fine sand - medium sand), Coastal topography is relatively sloping and affected by the tides. Lands of coastal areas, generally contain by many pyrite minerals (FeS2), [1]. Coastal land is also known have relatively high levels of rotting minerals than weathered mineral, and generally this land is rich in kaolinitic mineral types and quartz [1]. The minerals encountered in sediments of the Jeneberang River, consist of Quartz, Hornblende, Pyroxene, Orthoclase, Plagioclase, Biotite and metallic minerals in larger quantities, with fine sands to coarse sand and rounded to sub-rounded form [2].