气候变化领域集成服务门户(CCPortal): Holocene Indian Ocean sea level; Antarctic melting history and past Tsunami deposits inferred using sea level reconstructions from the Sri Lankan; Southeastern Indian and Maldivian coasts

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DOI	10.1016/j.quascirev.2018.11.024
	Holocene Indian Ocean sea level; Antarctic melting history and past Tsunami deposits inferred using sea level reconstructions from the Sri Lankan; Southeastern Indian and Maldivian coasts
	Yokoyama Y.; Hirabayashi S.; Goto K.; Okuno J.; Sproson A.D.; Haraguchi T.; Ratnayake N.; Miyairi Y.
发表日期	2019
ISSN	0277-3791
起始页码	150
结束页码	161
卷号	206
英文摘要	Holocene sea level change in the northern Indian Ocean was studied using geochemical and geophysical approaches. Molluscs were sub-sampled for radiocarbon dating from sediment cores retrieved from a south Sri Lankan coastal lagoon. They were then combined with previously published sediment core radiocarbon ages from the same lagoon. We observe a ∼20-fold reduction in sedimentation rates at around 4 ka, attributed to a decrease in the rate of sea level rise. Previously reported radiocarbon ages based on total organic matter in the lagoon show remarkable agreement with our new dates suggesting stable and homogeneous sedimentation during the last 8 ka. Comparison of down core age trends of both data sets reveal that sediments are older than coeval molluscs, except for the horizons adjacent to the paleo Tsunami layers, indicating fresh and younger sediments are provided during Tsunami events, which could become a new proxy for identifying paleo Tsunamis. Compilation of previously reported sea level indicators from Sri Lanka, Southeastern India and the Maldives, together with predicted sea level obtained from a glacio-hydro-isostatic adjustment model (GIA), suggest that 3–4 m of global sea level equivalent ice sheet melting occurred during the Mid Holocene due to the retreat of the Antarctic and/or Greenland ice sheets. Previous works suggests late Holocene (ca. 4 ka) climate anomalies in both the low and high latitudes. We suggest the low latitude climate anomaly, transmitted via atmosphere to the high latitude during the late Holocene, seems to have induced changes in polar ice sheets. © 2018 Elsevier Ltd
语种	英语
scopus关键词	Glaciers; Ice; Lakes; Melting; Molluscs; Sediments; Tsunamis; Greenland Ice Sheet; Holocene sea-level change; Northern indian oceans; Radiocarbon dating; Sea level indicators; Sea-level reconstruction; Sedimentation rates; Total organic matter; Sea level; coastal lagoon; glacioisostasy; historical record; Holocene; ice retreat; melting; mollusc; paleoclimate; paleoenvironment; polar region; radiocarbon dating; reconstruction; sea level change; sediment core; temperature anomaly; tsunami; Antarctic Ice Sheet; Antarctica; Arctic; Greenland; Greenland Ice Sheet; Indian Ocean; Maldives; Sri Lanka; Mollusca
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/152018
作者单位	Atmosphere and Ocean Research Institute, The University of Tokyo, Japan; Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Japan; Department of Multi-Disciplinary Sciences, Graduate Program on Environmental Sciences, The University of Tokyo, Japan; Department of Biogeochemistry, Japan Agency for Marine-Earth Science and Technology, Yokosuka, 237-0061, Japan; Department of Environmental Changes, Faculty of Social and Cultural Studies, Kyushu University, Fukuoka, 819-0395, Japan; International Research Institute of Disaster Science, Tohoku University, Japan; National Institute of Polar Research, Japan; Osaka City University, Osaka, Japan; Department of Earth Resources Engineering, University of Moratuwa, Sri Lanka
推荐引用方式 GB/T 7714	Yokoyama Y.,Hirabayashi S.,Goto K.,et al. Holocene Indian Ocean sea level; Antarctic melting history and past Tsunami deposits inferred using sea level reconstructions from the Sri Lankan; Southeastern Indian and Maldivian coasts[J],2019,206.
APA	Yokoyama Y..,Hirabayashi S..,Goto K..,Okuno J..,Sproson A.D..,...&Miyairi Y..(2019).Holocene Indian Ocean sea level; Antarctic melting history and past Tsunami deposits inferred using sea level reconstructions from the Sri Lankan; Southeastern Indian and Maldivian coasts.Quaternary Science Reviews,206.
MLA	Yokoyama Y.,et al."Holocene Indian Ocean sea level; Antarctic melting history and past Tsunami deposits inferred using sea level reconstructions from the Sri Lankan; Southeastern Indian and Maldivian coasts".Quaternary Science Reviews 206(2019).