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http://dx.doi.org/10.9719/EEG.2020.53.1.87

Application Experiments of Consolidation Treatment for Pelitic Sedimentary Rocks: Bird Track Fossils in Haman Formation  

Lee, Gyu Hye (Department of Cultural Heritage Conservation Sciences, Kongju National University)
Lee, Chan Hee (Department of Cultural Heritage Conservation Sciences, Kongju National University)
Yang, Hye Ri (Department of Cultural Heritage Conservation Sciences, Kongju National University)
Publication Information
Economic and Environmental Geology / v.53, no.1, 2020 , pp. 87-98 More about this Journal
Abstract
The bird track fossil site in Haman Formation is divided into seven sedimental layers by the sedimentary structures, lithofacies and sequences. The bird tracks top on the highest layer, which includes ripple marks and suncracks. The layer has lithofacies with reddish grey siltstone and dark grey mudstone, alternately. As an analysis for the same rocks of the fossil site, physical properties show on mean values for 0.62% of absorption rate, 1.64% of porosity and 2.63 of specific gravity. Rock-forming minerals composed mainly of plagioclase, quartz, calcite, chlorite and mica. Meanwhile, we executed an experiments based on the petrography and weatherings to find a proper consolidants. In the experiments, the OH 100 reagent proved stable aspect and the lowest transition rate in terms of weight and chromaticity. Also, it showed the highest increase in ultrasonic velocity, improving the physical properties of the rocks. In the case of applying the OH 100 with antihygro, an swelling inhibitors on the sedimentary rocks, the chromaticity indicated an stable transition aspect. When it comes to the physical properties, the antihygro also decreases the porosity effectively. Thus, the most proper method for the fossil site of Haman Formation is to apply antihygro and OH 100 reagents since the rocks includes clay minerals that show swelling characteristics. However, this result is deduced from an indoor application experiments, leaving the necessity of verification how these reagents would affect the bird tracks site under the field condition.
Keywords
bird track fossil site; conservation treatments; consolidants; swelling inhibitors; application experiments;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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