Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 0031-0182 |
EISSN | 1872-616X |
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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