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Paper Title
Distribution of Silica Sand on The Muda Island and Ketam Island in The Estuary of Kampar River, Pelalawan Regency, Indonesia

Abstract
Silica sand is produced by weathered igneous rock where transported and deposited in the area such as banks of a river, lake or beach. The study area of the silica sand distribution is on Muda Island and Ketam Island, Pelalawan Regency, Riau Province, Indonesia. Silica sand source deposits in this area is influenced by the northern part of the estuary of Kampar River which is dealing with the straits of Melaka that rich with sand sediments reserve. Melaka Strait in the northwest part of this estuary transports the sand materials from the Indian Ocean, while in the northeast part the sand sediment materials were obtained from the South China Sea and Riau Islands. Silica sand deposition process occurs due to the estuary system which is a bore tidal system. Landsat 8 that has been taken from June 2016 shows the significant in the sandbars development that almost thrive on the whole estuary of the Kampar River and the spread almost evenly from Muda Island and Ketam Island. From the result of laboratory testing using X-Ray Fluorescence (X-RF) for the sample of Muda Island contains the silica compound with the percentage is 92% and for the sample from Ketam Island, the percentage compound of silica sand in the sand sample is 90.5%. The result from X-Ray Diffraction (X-RD) analysis in the sample of Muda Island shows the high peak is quartz and miciocline compounds with the peak count of 3000 cps and for the silica sand sample from Ketam Island, the high peak are muscovite and quartz which have more than 32,000 cps. Keywords- Silica Sand, Estuary, Kampar River, X-Ray Fluorescence, X-Ray Diffraction.


Author - Husnul Kausarian, Tiggi Choanji, Detri Karya, Gevisioner, Riche Willyati

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