Mineral composition and structure of the stalagmite laminae from Chulerasim cave, Indian Himalaya, and the significance for palaeoclimatic reconstruction

doi:10.1016/j.quaint.2012.03.042

	Mineral composition and structure of the stalagmite laminae from Chulerasim cave, Indian Himalaya, and the significance for palaeoclimatic reconstruction
	Duan, Wuhui 1; Kotlia, Bahadur Singh 2; Tan, Ming 1
刊名	QUATERNARY INTERNATIONAL
	2013-06-17
卷号	298 页码:93-97
ISSN号	1040-6182
DOI	10.1016/j.quaint.2012.03.042
文献子类	Article
英文摘要	Many noteworthy properties of climate recorded by stalagmites can result from their mineralogy and fabric as well as their mode of occurrence. In this study, X-ray diffraction (XRD) and Scanning electron microscope (SEM) investigations were carried out for a well laminated stalagmite from Chulerasim cave, north India, to identify the mineral composition and structure of the laminae. As some early reported stalagmite laminae from Thailand and Southwestern China, the laminae of this stalagmite are composed of alternating compact and porous sub-layers. The XRD results confirm that the stalagmite is composed mainly of primary aragonite, which corrects the previous interpretation. The SEM results show that the compact sub-layer is composed of elongated columnar aragonites with a general longitudinal orientation (parallel to the vertical growth axis) and the coalescence of the aragonite crystals is well developed, leaving few inter-crystalline voids. The compact sub-layer may have formed in quasi-equilibrium conditions and provides the main carrier of climate proxies. The porous sub-layer is made up of needles, drusy and fibrous aragonites intersecting each other. Accordingly, the coalescence is low, with many inter-crystalline voids, which suggests a short hiatus between two adjacent compact sub-layers. Therefore, the growth of alternation of compact/porous sub-layers may not be successive, and they may have formed in different seasons. The results suggest that, for stalagmite/palaeoclimate research, cave monitoring should be performed to reveal when and how the compact sub-layers were formed. (c) 2012 Elsevier Ltd and INQUA. All rights reserved.
WOS关键词	ENVIRONMENTAL CONTROLS ; SPELEOTHEM ; GROWTH ; CALCITE ; RECORD ; CARBONATE ; RAINFALL ; BOTSWANA
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000320212400009
资助机构	ISRO-GBP, Ahmedabad, India ; ISRO-GBP, Ahmedabad, India ; University Grants Commission, New Delhi ; University Grants Commission, New Delhi ; CAS Strategic Priority Research Program(XDA05080501) ; CAS Strategic Priority Research Program(XDA05080501) ; National Basic Research Program of China(2010CB950201) ; National Basic Research Program of China(2010CB950201) ; National Natural Science Foundation of China(41030103) ; National Natural Science Foundation of China(41030103) ; Uttarakhand Centre for Climate Change, Kumaun University, Nainital ; Uttarakhand Centre for Climate Change, Kumaun University, Nainital ; CAS in Geology, Kumaun University, Nainital ; CAS in Geology, Kumaun University, Nainital ; ISRO-GBP, Ahmedabad, India ; ISRO-GBP, Ahmedabad, India ; University Grants Commission, New Delhi ; University Grants Commission, New Delhi ; CAS Strategic Priority Research Program(XDA05080501) ; CAS Strategic Priority Research Program(XDA05080501) ; National Basic Research Program of China(2010CB950201) ; National Basic Research Program of China(2010CB950201) ; National Natural Science Foundation of China(41030103) ; National Natural Science Foundation of China(41030103) ; Uttarakhand Centre for Climate Change, Kumaun University, Nainital ; Uttarakhand Centre for Climate Change, Kumaun University, Nainital ; CAS in Geology, Kumaun University, Nainital ; CAS in Geology, Kumaun University, Nainital ; ISRO-GBP, Ahmedabad, India ; ISRO-GBP, Ahmedabad, India ; University Grants Commission, New Delhi ; University Grants Commission, New Delhi ; CAS Strategic Priority Research Program(XDA05080501) ; CAS Strategic Priority Research Program(XDA05080501) ; National Basic Research Program of China(2010CB950201) ; National Basic Research Program of China(2010CB950201) ; National Natural Science Foundation of China(41030103) ; National Natural Science Foundation of China(41030103) ; Uttarakhand Centre for Climate Change, Kumaun University, Nainital ; Uttarakhand Centre for Climate Change, Kumaun University, Nainital ; CAS in Geology, Kumaun University, Nainital ; CAS in Geology, Kumaun University, Nainital ; ISRO-GBP, Ahmedabad, India ; ISRO-GBP, Ahmedabad, India ; University Grants Commission, New Delhi ; University Grants Commission, New Delhi ; CAS Strategic Priority Research Program(XDA05080501) ; CAS Strategic Priority Research Program(XDA05080501) ; National Basic Research Program of China(2010CB950201) ; National Basic Research Program of China(2010CB950201) ; National Natural Science Foundation of China(41030103) ; National Natural Science Foundation of China(41030103) ; Uttarakhand Centre for Climate Change, Kumaun University, Nainital ; Uttarakhand Centre for Climate Change, Kumaun University, Nainital ; CAS in Geology, Kumaun University, Nainital ; CAS in Geology, Kumaun University, Nainital
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/87061]
专题	中国科学院地质与地球物理研究所
通讯作者	Duan, Wuhui
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 2.Kumaun Univ, Dept Geol, Naini Tal 263002, India
推荐引用方式 GB/T 7714	Duan, Wuhui,Kotlia, Bahadur Singh,Tan, Ming. Mineral composition and structure of the stalagmite laminae from Chulerasim cave, Indian Himalaya, and the significance for palaeoclimatic reconstruction[J]. QUATERNARY INTERNATIONAL,2013,298:93-97.
APA	Duan, Wuhui,Kotlia, Bahadur Singh,&Tan, Ming.(2013).Mineral composition and structure of the stalagmite laminae from Chulerasim cave, Indian Himalaya, and the significance for palaeoclimatic reconstruction.QUATERNARY INTERNATIONAL,298,93-97.
MLA	Duan, Wuhui,et al."Mineral composition and structure of the stalagmite laminae from Chulerasim cave, Indian Himalaya, and the significance for palaeoclimatic reconstruction".QUATERNARY INTERNATIONAL 298(2013):93-97.