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DOI	10.1016/j.jseaes.2009.05.003
	Quartz features constrain the origin of terra rossa over dolomite on the Yunnan-Guizhou Plateau, China
	Feng, Jin-Liang; Zhu, Li-Ping; Cui, Zhi-Jiu
通讯作者	Feng, JL (通讯作者)
发表日期	2009
ISSN	1367-9120
起始页码	156
结束页码	167
卷号	36 期号:2-3
英文摘要	The origin of terra rossa and the relationship between terra rossa and its underlying carbonate rocks pose long-standing and controversial questions. Little insoluble residue content in carbonate rocks makes it difficult to believe that the terra rossa derives only from their underlying carbonates. This study focuses on one 4.05 m thick Pingba Farm terra rossa profile over dolomite on the Yunnan-Guizhou Plateau, China. It is characterized by its ferromanganese concretion, gibbsite and terra rossa coexistence in profile. The Al(2)O(3) contents in the terra rossa rise to 34%. The authors examined the quartz content, particle size distribution of quartz, surface micro-textures and quartz morphology, quartz oxygen isotope ratios, mineral composition, chemical composition, and other tracers in the terra rossa and dolomite to determine the derivation of the terra rossa. The results indicate that terra rossa in the Pingba Farm profile is an in situ weathering solum. The terra rossa comes partly, but not completely, from insoluble residues from the underlying dolomite. The debris minerals (quartz, feldspar, etc.) derive completely from the underlying dolomite. The clay minerals, and the Al, Fe and Mn oxides and hydroxides likely have three origins. One portion derives from insoluble residues of the underlying dolomite. A second portion transforms from primary minerals in the underlying dolomite. The final portion possibly comes from antigenic minerals which formed from aqueous solutes imported by the leaching water. The terra rossa is mainly composed of antigenic minerals. (C) 2009 Elsevier Ltd. All rights reserved.
关键词	EOLIAN DUST WEST-INDIES SOILS SEDIMENTS OXYGEN GENESIS KARST GEOCHEMISTRY PEDOGENESIS LIMESTONES
英文关键词	Chemical weathering; Isotopic tracing; Quartz oxygen isotope; Quartz particle size distribution; Quartz morphology; Gibbsite; Clay mineral
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000269269600003
来源期刊	JOURNAL OF ASIAN EARTH SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257653
推荐引用方式 GB/T 7714	Feng, Jin-Liang,Zhu, Li-Ping,Cui, Zhi-Jiu. Quartz features constrain the origin of terra rossa over dolomite on the Yunnan-Guizhou Plateau, China[J]. 中国科学院青藏高原研究所,2009,36(2-3).
APA	Feng, Jin-Liang,Zhu, Li-Ping,&Cui, Zhi-Jiu.(2009).Quartz features constrain the origin of terra rossa over dolomite on the Yunnan-Guizhou Plateau, China.JOURNAL OF ASIAN EARTH SCIENCES,36(2-3).
MLA	Feng, Jin-Liang,et al."Quartz features constrain the origin of terra rossa over dolomite on the Yunnan-Guizhou Plateau, China".JOURNAL OF ASIAN EARTH SCIENCES 36.2-3(2009).