干旱区生态环境知识资源中心(Arid): Holocene paleoenvironmental changes in the marginal marine basin of Great Rann of Kachchh, western India: Insights from sedimentological and mineral magnetic studies on a similar to 60 m long core

Arid

DOI	10.1016/j.quaint.2021.02.039
	Holocene paleoenvironmental changes in the marginal marine basin of Great Rann of Kachchh, western India: Insights from sedimentological and mineral magnetic studies on a similar to 60 m long core
	Kumar, Abhishek; Maurya, D. M.; Khonde, Niteshkumar; Phartiyal, Binita; Arif, Md.; Giosan, Liviu; Chamyal, L. S.
通讯作者	Maurya, DM (corresponding author), Maharaja Sayajirao Univ Baroda, Dept Geol, Vadodara 390002, India.
来源期刊	QUATERNARY INTERNATIONAL
ISSN	1040-6182
EISSN	1873-4553
出版年	2021
卷号	599 页码:138-147
英文摘要	We carried out sedimentological and mineral magnetic studies on a -60 m long core recovered from the central part of the Great Rann of Kachchh (GRK), a marginal marine basin, located on the western continental margin of India to understand the Holocene paleoenvironmental changes. We critically analysed the sedimentation pattern, sediment characteristics along with paleoclimatic signatures of global and regional relevance. In GRK basin, the sedimentation started in early Holocene (-10.6-9.3 kyr BP) under rapidly rising post glacial sea level with very high sedimentation rate (8.71 cm/yr to 2.37 cm/yr) which is also seen in several marginal marine basins across the globe. The abundant laminations, coarse grained sediment flux and environmental magnetic parameters (chi lf, S-ratio) suggests that the sedimentation occurred in developing monsoonal conditions under wetter yet fluctuating climate during this period. After -9 kyr BP, the environmental magnetic proxies show transition toward relatively wetter condition with peak at -6.5 kyr BP. This wetter climatic phase on the other hand corroborates with reduction of sedimentation rate to 0.46 cm/yr. This reduction in sedimentation rate under strengthening monsoonal conditions probably occurred due to rapid filling up of the basin on account of earlier high sedimentation in the basin. The sedimentation rate is reduced significantly after the onset of aridity at -4 kyr BP except a minor wet spell recorded during -1.5 to 1 kyr BP before drying of the GRK basin.
英文关键词	Holocene Rann of Kachchh Paleoenvironment paleoclimate changes Particle size analysis Environmental magnetism
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000674602900003
WOS关键词	RECENT SEDIMENTS ; SUMMER MONSOON ; THAR DESERT ; EVOLUTION ; CLIMATE ; RECORD ; COAST ; RECONSTRUCTION ; GEOMORPHOLOGY ; STALAGMITE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364434
作者单位	[Kumar, Abhishek; Maurya, D. M.; Chamyal, L. S.] Maharaja Sayajirao Univ Baroda, Dept Geol, Vadodara 390002, India; [Khonde, Niteshkumar; Phartiyal, Binita; Arif, Md.] Birbal Sahni Inst Palaeosci, 53 Univ Rd, Lucknow 226007, Uttar Pradesh, India; [Giosan, Liviu] Woods Hole Oceanog Inst, Geol & Geophys, Woods Hole, MA 02543 USA
推荐引用方式 GB/T 7714	Kumar, Abhishek,Maurya, D. M.,Khonde, Niteshkumar,et al. Holocene paleoenvironmental changes in the marginal marine basin of Great Rann of Kachchh, western India: Insights from sedimentological and mineral magnetic studies on a similar to 60 m long core[J],2021,599:138-147.
APA	Kumar, Abhishek.,Maurya, D. M..,Khonde, Niteshkumar.,Phartiyal, Binita.,Arif, Md..,...&Chamyal, L. S..(2021).Holocene paleoenvironmental changes in the marginal marine basin of Great Rann of Kachchh, western India: Insights from sedimentological and mineral magnetic studies on a similar to 60 m long core.QUATERNARY INTERNATIONAL,599,138-147.
MLA	Kumar, Abhishek,et al."Holocene paleoenvironmental changes in the marginal marine basin of Great Rann of Kachchh, western India: Insights from sedimentological and mineral magnetic studies on a similar to 60 m long core".QUATERNARY INTERNATIONAL 599(2021):138-147.