$Mineralogy of the Mudeungsan Tuff (Republic of Korea) Using Synchrotron X-ray Powder Diffraction and Rietveld Quantitative Analysis$
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Mineralogy of the Mudeungsan Tuff (Republic of Korea) Using Synchrotron X-ray Powder Diffraction and Rietveld Quantitative Analysis

Mudeungsan (Mount Mudeung) is an extinct volcano located in the southwestern part of South Korea that was formed in the Late Cretaceous period. This mountain, 1187 m above sea level, is adjacent to Gwangju Metropolitan City, which has a large population (about 1.4 million) and volcanic rocks, includ...

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Auteurs principaux:	Donghoon Seoung, Pyosang Kim, Hyeonsu Kim, Hyunseung Lee, Min Huh, Hyunwoo Lee, Yongmoon Lee
Format:	article
Langue:	EN
Publié:	MDPI AG 2021
Sujets:	Mudeungsan X-ray diffraction Rietveld quantification cristobalite volcano Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Accès en ligne:	https://doaj.org/article/ea9c9b7707844f4a89226b7710ffe6bd
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spelling	oai:doaj.org-article:ea9c9b7707844f4a89226b7710ffe6bd2021-11-25T16:38:19ZMineralogy of the Mudeungsan Tuff (Republic of Korea) Using Synchrotron X-ray Powder Diffraction and Rietveld Quantitative Analysis10.3390/app1122107962076-3417https://doaj.org/article/ea9c9b7707844f4a89226b7710ffe6bd2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10796https://doaj.org/toc/2076-3417Mudeungsan (Mount Mudeung) is an extinct volcano located in the southwestern part of South Korea that was formed in the Late Cretaceous period. This mountain, 1187 m above sea level, is adjacent to Gwangju Metropolitan City, which has a large population (about 1.4 million) and volcanic rocks, including columnar joints, which form various types of outcrops. Although this mountain was listed as a national geopark in 2014 and a UNESCO Global Geopark in 2018, much basic research has yet to be carried out. In particular, there are no mineralogical studies of volcanic rock samples despite the well-preserved variety of volcanic rocks. For this study, X-ray diffraction analysis was conducted using rock samples from Mudeungsan columnar joints known as tuff. We report that the rocks are mostly dacite, mainly composed of quartz, plagioclase, and sanidine through Rietveld quantitative analysis. In particular, α-cristobalite, a crystalline polymorph of silica, appears in the columnar joint rocks, indicating that Mudeungsan experienced an explosive eruption during the formation of the mountain.Donghoon SeoungPyosang KimHyeonsu KimHyunseung LeeMin HuhHyunwoo LeeYongmoon LeeMDPI AGarticleMudeungsanX-ray diffractionRietveld quantificationcristobalitevolcanoTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10796, p 10796 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Mudeungsan X-ray diffraction Rietveld quantification cristobalite volcano Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	Mudeungsan X-ray diffraction Rietveld quantification cristobalite volcano Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Donghoon Seoung Pyosang Kim Hyeonsu Kim Hyunseung Lee Min Huh Hyunwoo Lee Yongmoon Lee Mineralogy of the Mudeungsan Tuff (Republic of Korea) Using Synchrotron X-ray Powder Diffraction and Rietveld Quantitative Analysis
description	Mudeungsan (Mount Mudeung) is an extinct volcano located in the southwestern part of South Korea that was formed in the Late Cretaceous period. This mountain, 1187 m above sea level, is adjacent to Gwangju Metropolitan City, which has a large population (about 1.4 million) and volcanic rocks, including columnar joints, which form various types of outcrops. Although this mountain was listed as a national geopark in 2014 and a UNESCO Global Geopark in 2018, much basic research has yet to be carried out. In particular, there are no mineralogical studies of volcanic rock samples despite the well-preserved variety of volcanic rocks. For this study, X-ray diffraction analysis was conducted using rock samples from Mudeungsan columnar joints known as tuff. We report that the rocks are mostly dacite, mainly composed of quartz, plagioclase, and sanidine through Rietveld quantitative analysis. In particular, α-cristobalite, a crystalline polymorph of silica, appears in the columnar joint rocks, indicating that Mudeungsan experienced an explosive eruption during the formation of the mountain.
format	article
author	Donghoon Seoung Pyosang Kim Hyeonsu Kim Hyunseung Lee Min Huh Hyunwoo Lee Yongmoon Lee
author_facet	Donghoon Seoung Pyosang Kim Hyeonsu Kim Hyunseung Lee Min Huh Hyunwoo Lee Yongmoon Lee
author_sort	Donghoon Seoung
title	Mineralogy of the Mudeungsan Tuff (Republic of Korea) Using Synchrotron X-ray Powder Diffraction and Rietveld Quantitative Analysis
title_short	Mineralogy of the Mudeungsan Tuff (Republic of Korea) Using Synchrotron X-ray Powder Diffraction and Rietveld Quantitative Analysis
title_full	Mineralogy of the Mudeungsan Tuff (Republic of Korea) Using Synchrotron X-ray Powder Diffraction and Rietveld Quantitative Analysis
title_fullStr	Mineralogy of the Mudeungsan Tuff (Republic of Korea) Using Synchrotron X-ray Powder Diffraction and Rietveld Quantitative Analysis
title_full_unstemmed	Mineralogy of the Mudeungsan Tuff (Republic of Korea) Using Synchrotron X-ray Powder Diffraction and Rietveld Quantitative Analysis
title_sort	mineralogy of the mudeungsan tuff (republic of korea) using synchrotron x-ray powder diffraction and rietveld quantitative analysis
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ea9c9b7707844f4a89226b7710ffe6bd
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_version_	1718413111702061056

Mineralogy of the Mudeungsan Tuff (Republic of Korea) Using Synchrotron X-ray Powder Diffraction and Rietveld Quantitative Analysis

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