干旱区生态环境知识资源中心(Arid): Mineralogy, geochemistry, and eolian source of mountain soils on quartzite

Arid

DOI	10.14770/jgsk.2019.55.1.87
	Mineralogy, geochemistry, and eolian source of mountain soils on quartzite
	Jo, Hye-Yeon; Park, Mi Yeon; Jeong, Gi Young
通讯作者	Jeong, GY
来源期刊	JOURNAL OF THE GEOLOGICAL SOCIETY OF KOREA
ISSN	0435-4036
EISSN	2288-7377
出版年	2019
卷号	55 期号:1 页码:87-103
英文摘要	Eolian particles are difficult to distinguish from soil particles originating from chemical weathering of local bedrocks. In this study, we conducted mineralogical and geochemical analyses on high mountain soils developed on quartzite because of little contribution of quartzite to fine fractions of soils. Quartzite was disintegrated into sand and coarse silt particles without a neoformation of soil minerals. X-ray diffraction analyses showed that silt fractions of soils contained a large quantity of clay minerals (44%) together with plagioclase and feldspar, which could not be formed by quartzite weathering. Thus, clay-silt particles in soils were deposited via eolian process. The major clay minerals in the quartzite soils are hydroxy-Al interlayered vermiculite (HIV), whereas those in the Gobi desert soils, the major source of the mineral dust, are illite-smectite series clay minerals. In acidic mountainous soil environments, interlayer K was leached from illite layers of eolian clay minerals to form vermiculite, followed by intercalation of hydroxy-Al ions into vermiculite. The ratios of Si/Ti, Al/Ti, and Fe/Ti of quartzite soils were similar to those of Gobi desert silts. The ratios of Na/Ti, Ca/Ti, Mg/Ti, and K/Ti decreased in comparison to those of Gobi silts, attributed to the chemical weathering of mineral dust after deposition. The rare-earth element compositions of quartzite soils are very similar to those of Gobi soils. The results suggest the significant deposition of clay-silt particles originating from long-range transported mineral dust on Korean soils.
英文关键词	clay minerals geochemistry eolian weathering soil
类型	Article
语种	其他
收录类别	ESCI
WOS记录号	WOS:000467085400006
WOS关键词	ASIAN DUST ; WEATHERING PROFILE ; LOESS ; AREA ; STRATIGRAPHY ; HALLOYSITE ; DEPOSITION ; PROVENANCE ; PARTICLES ; CHEMISTRY
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333532
作者单位	[Jo, Hye-Yeon; Park, Mi Yeon; Jeong, Gi Young] Andong Natl Univ, Dept Earth & Environm Sci, Andong 36729, South Korea
推荐引用方式 GB/T 7714	Jo, Hye-Yeon,Park, Mi Yeon,Jeong, Gi Young. Mineralogy, geochemistry, and eolian source of mountain soils on quartzite[J],2019,55(1):87-103.
APA	Jo, Hye-Yeon,Park, Mi Yeon,&Jeong, Gi Young.(2019).Mineralogy, geochemistry, and eolian source of mountain soils on quartzite.JOURNAL OF THE GEOLOGICAL SOCIETY OF KOREA,55(1),87-103.
MLA	Jo, Hye-Yeon,et al."Mineralogy, geochemistry, and eolian source of mountain soils on quartzite".JOURNAL OF THE GEOLOGICAL SOCIETY OF KOREA 55.1(2019):87-103.