干旱区生态环境知识资源中心(Arid): Role of lithology, weathering and precipitation on water chemistry of lakes from Larsemann Hills and Schirmacher Oasis of East Antarctica

Arid

	Role of lithology, weathering and precipitation on water chemistry of lakes from Larsemann Hills and Schirmacher Oasis of East Antarctica
	Asthana Rajesh; Shrivastava Prakash K; Srivastava Hari B; Swain Ashit K; Beg Mirza Javed; Dharwadkar Amit
来源期刊	Advances in Polar Science
ISSN	1674-9928
出版年	2019
卷号	30 期号:1 页码:35-51
英文摘要	Schirmacher Oasis and Larsemann Hills areas represent two different periglacial environments of East Antarctica. Schirmacher Oasis is characterized by a vast stretch of ice-shelf in the north and East Antarctic Ice Sheet (EAIS) to its south. Whereas, in Larsemann Hills area the northern and north-western boundary is coastal area and EAIS in the southern part, exhibiting polar lowland between the marine and continental glacial ecosystems. Physico-chemical parameters of water samples from different lakes of both of these two distinct locations are quite contrasting and have indicated influence of lithology, weathering, evaporation and precipitation. The lake water chemistry in Larsemann Hills area is mainly governed by the lithology of the area while Schirmacher lakes exhibit influence of precipitation and rock composition. All major ions of lake waters indicate balanced ionic concentrations. The atmospheric precipitation has significantly modified the ionic distributions in the lakes and channels. Carbonation is the main proton supplying geochemical reactions involved in the rock weathering and this is an important mechanism which controls the hydrochemistry. The lake water hydrochemistry differs widely not only between two distant periglacial zones but also within a short distance of a single periglacial entity, indicating influence of territorial climate over hydrochemistry.
英文关键词	lake water ionic concentration Schirmacher Oasis Larsemann Hills East Antarctica
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Chemistry
CSCD记录号	CSCD:6533758
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336145
作者单位	Asthana Rajesh, Central Head Quarter, M-IV, Geological Survey of India, Central Head Quarters, Kolkata, 700016, India.; Shrivastava Prakash K, State Unit Sikkim, Geological Survey of India, Gangtok, India.; Swain Ashit K, State Unit Sikkim, Geological Survey of India, Gangtok, India.; Srivastava Hari B, Department of Geology, Banaras Hindu University, Varanasi, India.; Beg Mirza Javed, National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Government of India, Headland Sada, Goa, 403804, India.; Dharwadkar Amit, Polar Studies Division, Geological Survey of India, Faridabad, India.
推荐引用方式 GB/T 7714	Asthana Rajesh,Shrivastava Prakash K,Srivastava Hari B,et al. Role of lithology, weathering and precipitation on water chemistry of lakes from Larsemann Hills and Schirmacher Oasis of East Antarctica[J],2019,30(1):35-51.
APA	Asthana Rajesh,Shrivastava Prakash K,Srivastava Hari B,Swain Ashit K,Beg Mirza Javed,&Dharwadkar Amit.(2019).Role of lithology, weathering and precipitation on water chemistry of lakes from Larsemann Hills and Schirmacher Oasis of East Antarctica.Advances in Polar Science,30(1),35-51.
MLA	Asthana Rajesh,et al."Role of lithology, weathering and precipitation on water chemistry of lakes from Larsemann Hills and Schirmacher Oasis of East Antarctica".Advances in Polar Science 30.1(2019):35-51.