KMID : 1102020220520010012
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Applied Microscopy 2022 Volume.52 No. 1 p.12 ~ p.12
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Analysis of composition and microstructure of diatom frustules in mud on the coast of Boryeong- city, South Korea
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Bok Mi-Kyung
Chin Chung-Hwa Choi Hee-Jung Ham Ju-Hyun Chang Byung-Soo
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Abstract
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The microstructure of diatom frustules found in mud sediments along the coast of Boryeong- city, South Korea, was observed using a scanning electron microscopy (SEM), and the constituent elements of diatoms were analyzed using energy-dispersive X-ray spectroscopy (EDS). Diatom frustules and clay minerals were present in the SEM images of the mud powder. High-magnification SEM images revealed that the surface of the frustules contained identically shaped circular pores, measuring 1 ¥ìm in diameter, arranged at regular intervals. This study revealed that the diatom shell fragments in the mud powder ranged in size from 3 to 30 ¥ìm, with an average thickness of approximately 2.5 ¥ìm. The elements Si, Al, Fe, K, Na, Mg, and Ti were detected while analyzing the frustule constituents, with Si being the primary component with the highest content.
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KEYWORD
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Mud, Clay mineral, Diatom, Frustule, EDS, SEM
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