Arid
DOI10.1016/j.palaeo.2017.02.026
Late Pleistocene-Holocene climate and sea level changes inferred based on the tidal terrace sequence, Kachchh, Western India
Das, Archana1,2; Prizomwala, S. P.1; Makwana, Nisarg1; Thakkar, M. G.2
通讯作者Prizomwala, S. P.
来源期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
EISSN1872-616X
出版年2017
卷号473页码:82-93
英文摘要

An estuarine tidal terrace sequence at the mouth of the Kharod River, Kachchh, Western India is investigated for Pleistocene to Holocene climate and sea-level changes. Based on sedimentology, major element geochemistry, mineralogy, supported by optical dating, the study reports a lowered sea level during 13.8 ka, followed by gradual rise in the sea level until around 6 ka. This is ascribed to a combination of enhanced melt water discharge and strengthened Indian Summer Monsoon (ISM). The temporal changes in major elements (detrital proxies), suggest a fluctuating to an overall arid monsoon conditions during 5.7 to 3.1 ka with a rapidly rising sea level. This is further supported by the dominance of fine textured sediment along with the occurrences of shell rich horizon. In the absence of any evidence of land-level changes, the study suggests that at around 6 ka to 3 ka, the sea was approximately 2 m higher then present. The decline in the concentration of geochemical proxies and occurrence of Aeolian sand after 3 ka is interpreted as the onset of aridity and present day like conditions. The three levels of sea stands, during Early, Middle and Late Holocene are synchronous with various archeological (Harappan) settlements in the region. (C) 2017 Elsevier B.V. All rights reserved.


英文关键词Middle Holocene High sea stand Holocene climate Harappan culture OSL Western India
类型Article
语种英语
国家India
收录类别SCI-E
WOS记录号WOS:000398645600007
WOS关键词LOWER MAHI BASIN ; LATE QUATERNARY ; ENVIRONMENTAL-CHANGES ; THAR DESERT ; LUMINESCENCE CHRONOLOGY ; HARAPPAN CIVILIZATION ; MONSOON VARIABILITY ; MAINLAND GUJARAT ; SOUTHERN MARGIN ; SEDIMENTS
WOS类目Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向Physical Geography ; Geology ; Paleontology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/201352
作者单位1.Inst Seismol Res, Raisan 382009, Gandhinagar, India;
2.KSKV Kachchh Univ, Dept Earth & Environm Sci, Bhuj 370001, India
推荐引用方式
GB/T 7714
Das, Archana,Prizomwala, S. P.,Makwana, Nisarg,et al. Late Pleistocene-Holocene climate and sea level changes inferred based on the tidal terrace sequence, Kachchh, Western India[J],2017,473:82-93.
APA Das, Archana,Prizomwala, S. P.,Makwana, Nisarg,&Thakkar, M. G..(2017).Late Pleistocene-Holocene climate and sea level changes inferred based on the tidal terrace sequence, Kachchh, Western India.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,473,82-93.
MLA Das, Archana,et al."Late Pleistocene-Holocene climate and sea level changes inferred based on the tidal terrace sequence, Kachchh, Western India".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 473(2017):82-93.
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