干旱区生态环境知识资源中心(Arid): Manifestations of Weathering on Granitic Rocks in the Himalaya and Bundelkhand Regions: A Field-based Observation

Arid

DOI	10.16943/ptinsa/2019/49651
	Manifestations of Weathering on Granitic Rocks in the Himalaya and Bundelkhand Regions: A Field-based Observation
	Azam, Md Maroof; Chaudhary, Anurag; Kumar, Pankaj; Tripathi, Jayant K.
通讯作者	Tripathi, JK
来源期刊	PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY
ISSN	0370-0046
出版年	2019
卷号	85 期号:3 页码:659-665
英文摘要	Weathering is controlled by factors such as lithology, geological structures, topography climate, tectonics and biota. The present study aims to highlight the manifestations of weathering in two contrasting settings- the Himalaya and Bundelkhand. The study area in the Himalayan region is characterised by active tectonics, steep topography, rugged landscape, cold and semi-arid climate, and sparse vegetation cover. The Bundelkhand region, however, is characterised by stable, undulatory topography, warm and sub-humid climate, and tropical dry deciduous forest. This study mainly presents field observations made during field campaigns to Gemur and Jispa (Lahul Valley) and Rohtang in the Himalaya; Jhansi, Orchha and Lidhora in the Bundelkhand region. Contrasting features about weathering, erosion and sediment generation in the Himalaya and the Bundelkhand were observed. Weathering through physical heterogeneities are common in the Himalaya as water is lost through surface run off due to steep slopes. Presence of large fragmented materials weathered in the Himalaya is relatable to the erosion dominated regime corresponding to the tectonically active steep topography. On the other hand, gently sloping areas in the Bundelkhand, experience lower surface runoff and higher infiltration. Therefore, weathering in the Bundelkhand proceeds to a greater depth contributing to deep weathering profiles characterized by weathering layers such as sap rock, saprolite and soil. Series of events like the exposure of parent granite, development of physical openings along joints and fractures, erosional activities, transport of eroded materials, and chemical weathering due to longer residence time and longer interaction with water would have supported the development of deep weathering profiles in the Bundelkhand region.
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000489054600014
WOS关键词	CLIMATE ; PLANTS ; RATES ; ZONE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333846
作者单位	[Azam, Md Maroof; Chaudhary, Anurag; Tripathi, Jayant K.] Jawaharlal Nehru Univ, Sch Environm Sci, New Delhi 110067, India; [Kumar, Pankaj] Interuniv Accelerator Ctr ILIAC, Aruna Asaf Ali Marg, New Delhi 110067, India
推荐引用方式 GB/T 7714	Azam, Md Maroof,Chaudhary, Anurag,Kumar, Pankaj,et al. Manifestations of Weathering on Granitic Rocks in the Himalaya and Bundelkhand Regions: A Field-based Observation[J],2019,85(3):659-665.
APA	Azam, Md Maroof,Chaudhary, Anurag,Kumar, Pankaj,&Tripathi, Jayant K..(2019).Manifestations of Weathering on Granitic Rocks in the Himalaya and Bundelkhand Regions: A Field-based Observation.PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY,85(3),659-665.
MLA	Azam, Md Maroof,et al."Manifestations of Weathering on Granitic Rocks in the Himalaya and Bundelkhand Regions: A Field-based Observation".PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY 85.3(2019):659-665.