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High-resolution similar to 55 ka paleomagnetic record of Bien Ho maar lake sediment from Vietnam in relation to detailed C-14 and Cs-137 geochronologies

文献类型：期刊论文

作者Ojala, Antti E. K.1; Nguyen-Van, Huong2; Unkel, Ingmar4; Nguyen-Thuy, Duong2; Nguyen-Dinh, Thai2; Do-Trong, Quoc2; Sun, Chunqing3; Sauer, Peter E.5; Schimmelmann, Arndt5
刊名QUATERNARY GEOCHRONOLOGY
出版日期2023-06-01
卷号76页码:15
ISSN号1871-1014
关键词Late Pleistocene Holocene Southeast Asia Lake sediment Paleomagnetic dating Radiocarbon dating
DOI10.1016/j.quageo.2023.101443
英文摘要Vietnam's Central Highlands in Pleiku feature numerous volcanic craters (i.e. maars) formed over 0.2 Ma ago that contain continuous high-resolution lacustrine sediment records extending from the Late Pleistocene through the Holocene. Their evolution and sedimentary proxies are potentially powerful archives for interpretation of East-Asian monsoon variability across Vietnam, as well as for local to regional changes in landcover. The focus of this study is to develop a reliable chronology for the Bien Ho 25-m-long lake sediment sequence in Vietnam's Central Highlands. We present a combined sediment chronology extending back to 55 ka cal BP that is based on Cs-137 surface sediment chronology, paleomagnetic dating, and 47 C-14 dates distributed evenly throughout the sequence. Based on sedimentary facies analysis and a smooth age-depth model based on Cs-137 and C-14 data, we infer a long-term stable rate of sedimentation in Bien Ho lake without unconformities or erosional hiatuses, except for the uppermost section (ca. 100 years) where human activities increase the rate of sedimentation significantly. The Bien Ho sequence thus provides a complete and uninterrupted record of the lake's depositional history. The present contribution is a geochronologic opening salvo for future contributions from Bien Ho lake featuring multi-disciplinary evidence for longer-term paleoclimate and environmental changes.
WOS关键词REMANENT MAGNETIZATION ; SECULAR VARIATION ; FALLOUT RADIONUCLIDES ; PALEOINTENSITY STACK ; GEOMAGNETIC-FIELD ; SEA SEDIMENTS ; CORE ; RADIOCARBON ; CHRONOLOGY ; DEPOSITION
资助项目Vietnam National Foundation for Science and Technology Development (NAFOSTED)[105.99-2018.316] ; NSF
WOS研究方向Physical Geography ; Geology
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:001021134700001
资助机构Vietnam National Foundation for Science and Technology Development (NAFOSTED) ; Vietnam National Foundation for Science and Technology Development (NAFOSTED) ; NSF ; NSF ; Vietnam National Foundation for Science and Technology Development (NAFOSTED) ; Vietnam National Foundation for Science and Technology Development (NAFOSTED) ; NSF ; NSF ; Vietnam National Foundation for Science and Technology Development (NAFOSTED) ; Vietnam National Foundation for Science and Technology Development (NAFOSTED) ; NSF ; NSF ; Vietnam National Foundation for Science and Technology Development (NAFOSTED) ; Vietnam National Foundation for Science and Technology Development (NAFOSTED) ; NSF ; NSF
源URL[http://ir.iggcas.ac.cn/handle/132A11/111299]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Ojala, Antti E. K.; Nguyen-Van, Huong
作者单位1.Univ Turku, Dept Geog & Geol, FI-20014 Turku, Finland
2.Vietnam Natl Univ, VNU Univ Sci, 334 Nguyen Trai St, Hanoi, Vietnam
3.Chinese Acad Sci, Inst Geol & Geophys, 19 Beituchengxilu, Beijing 100029, Peoples R China
4.Heidelberg Univ, Inst Geog, Neuenheimer Feld 348, D-69120 Heidelberg, Germany
5.Indiana Univ, Dept Earth & Atmospher Sci, 1001 East 10th St, Bloomington, IN 47405 USA
推荐引用方式
GB/T 7714		 Ojala, Antti E. K.,Nguyen-Van, Huong,Unkel, Ingmar,et al. High-resolution similar to 55 ka paleomagnetic record of Bien Ho maar lake sediment from Vietnam in relation to detailed C-14 and Cs-137 geochronologies[J]. QUATERNARY GEOCHRONOLOGY,2023,76:15.
APA Ojala, Antti E. K..,Nguyen-Van, Huong.,Unkel, Ingmar.,Nguyen-Thuy, Duong.,Nguyen-Dinh, Thai.,...&Schimmelmann, Arndt.(2023).High-resolution similar to 55 ka paleomagnetic record of Bien Ho maar lake sediment from Vietnam in relation to detailed C-14 and Cs-137 geochronologies.QUATERNARY GEOCHRONOLOGY,76,15.
MLA Ojala, Antti E. K.,et al."High-resolution similar to 55 ka paleomagnetic record of Bien Ho maar lake sediment from Vietnam in relation to detailed C-14 and Cs-137 geochronologies".QUATERNARY GEOCHRONOLOGY 76(2023):15.

入库方式： OAI收割

来源：地质与地球物理研究所

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