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Comparative characteristics of cement materials in natural and artificial beachrocks using a petrographic method

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Title: Comparative characteristics of cement materials in natural and artificial beachrocks using a petrographic method
Authors: Daryono, L. R. Browse this author
Titisari, A. D. Browse this author
Warmada, I. W. Browse this author
Kawasaki, S. Browse this author
Keywords: Petrography
Artificial beachrock
Issue Date: Sep-2019
Publisher: Springer
Journal Title: Bulletin of engineering geology and the environment
Volume: 78
Issue: 6
Start Page: 3943
End Page: 3958
Publisher DOI: 10.1007/s10064-018-1355-x
Abstract: Beachrock is among the important features of tropical coastlines. It appears to have an anchoring effect on dynamic islands that provides protection from erosion. However, the origin of cement micritic peloidal remains uncertain. Petrographic analysis is a method used by many geologists to accurately identify specific aggregated minerals present in an area. It also helps to understand historical petrogenesis interpretations of a sedimentary rock formation and cementation process inside rock particles. In this study, petrographic analysis was used to identify the structure, texture, composition, and presence of minerals from beachrock samples collected from Okinawa, Japan and Sadranan beach, Yogyakarta, Indonesia. Field investigations and laboratory analysis (petrographic and geochemical measurements) were aimed at understanding the formation mechanism of natural fresh beachrock. Subsequently, laboratory-scale experiments on artificial beachrock were based on solidification tests and were conducted to use microbial-induced calcium carbonate precipitation (MICP) with Pararodhobacter and Ocenisphaera bacterium species to draw comparisons between natural beachrock and artificial beachrock. The cementation process based on petrographic analysis of thin sections has an assumption that the cement type and other added materials determine the strength of the material, and that the cement mineral occurring represents the sedimentary environment. The cement mechanism behavior of natural beachrock has potential in manufacturing artificial beachrock using the MICP method, an eco-friendly development method for coastal areas.
Rights: The final publication is available at
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Lutfian R. Daryono

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