Optimization of Sand and Rock Boulder Resources from Mount Merapi Eruption Using the Photometry Model of Particle Size Distribution

Nurkhamim, Nurkhamim and Ernawati, Rika and Widiarti, Ika Wahyuning (2012) Optimization of Sand and Rock Boulder Resources from Mount Merapi Eruption Using the Photometry Model of Particle Size Distribution. In: 1st Earth Science International Seminar, 29-30 November 2012, Yogyakarta, Indonesia.

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Abstract

Analysis of the grain size (grain counting analysis) or a fragment of rocks, has an aim to determine the percentage of the
distribution size fragment or constituent particles sediment composer and gradation levels (ranging from uniforms, to
gradually irregular). This will facilitate the appropriate Wenworth classification (1922).
In engineering, particularly for resource and reserve estimation, analysis of the grain size can used to further optimize the
calculation, both its volume and tonnage. For the laboratory scale, generally grain size analysis using sieves (screen).
Obstacles will arise when calculations are performed to estimate the amount of material in many remarkable, both
volume and size boulders. It is impossible to use a sieve.
Photometric model based on analysis of the photo image, then using the filter gray scale to color and lines will be
reconstructed in the model segments in the size of particles. Photometric method is very fast, cheap and accurate.
The results of the grain size distribution of sand to rocks (boulder) in Gendol River obtained mineral sands potential is
estimated at 15%, dumping material (“urug”)/gravel at 40%, rock boulders at 45%. Understanding boulders, gravel and
sand here only mineral commodity trading terms, not appropriate with Wenworth scale. The determination of the
percentage of this size is quite important because it is associated with an estimated volume of sand and rock and the
potential tax and retribution for Sleman regency.
Key words : Optimization, sand and gravel, Photometry

Item Type:	Conference or Workshop Item (Paper)
Subjects:	T Technology > TN Mining engineering. Metallurgy
Divisions:	Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User:	Dr. ST MT NURKHAMIM NURKHAMIM
Date Deposited:	10 Apr 2023 00:48
Last Modified:	10 Apr 2023 00:48
URI:	http://eprints.upnyk.ac.id/id/eprint/34175

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