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海面下に着底した東南極氷床の安定性に関する研究

海面下に着底した東南極氷床の安定性に関する研究
南极东部冰盖沉入海面的稳定性研究
批准号:
20J21145
负责人:
BEHRENS BETHANY
金额:
$1.98万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for JSPS Fellows
财政年份:
2020
资助国家:
日本
项目状态:
已结题
起止时间:
2020-04-24 至 2023-03-31

项目摘要

项目成果

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相关文献

中文摘要
翻译
第一阶段:完成东南极洲阿德利盆地高分辨率样品制备,完成加速器质谱法铍同位素分析。详细介绍高分辨率数据集的手稿正在准备提交给科学期刊。第二阶段:利用加速器质谱仪对来自东南极洲萨布丽娜海岸地区的额外样品进行铍同位素分析。将其与附近较浅深度的地核进行比较,尽管地核位置接近,但数据中存在一些有趣的差异。研究结果正在与合著者进行讨论,这些数据以海报的形式在日本地球科学联合会会议和美国地质学会会议上发表。第三阶段:利用加速器质谱法对塔斯马尼亚西海岸Selina湖的样品进行了分析,涵盖了过去5个海洋同位素阶段(MIS 1-5)。随着样本数量的增加,看到比预期更强烈的气候信号是很有趣的。这项分析的结果在美国地质学会会议上作为口头报告提出,手稿已经完成,正在与合著者进行讨论。它将很快提交给一家科学杂志。
英文摘要
Phase 1: Preparation of the high resolution Adelie Basin, East Antarctica samples has been completed, and analysis of beryllium isotopes by accelerator mass spectrometry is finished. A manuscript detailing the high resolution dataset is being prepared for submission to a scientific journal.Phase 2: Additional samples from the Sabrina Coast region of East Antarctica have been analyzed by accelerator mass spectrometer for beryllium isotopes. Comparison to a nearby core at a shallower depth reveal some interesting differences in the data, despite the proximity of the core sites. The results are under discussion with coauthors, and the data was presented at the Japan Geosciences Union meeting and the Geological Society of America meeting in poster form.Phase 3: Samples from Lake Selina in the West Coast Range of Tasmania have been analyzed by accelerator mass spectrometry, covering the past five marine isotope stages (MIS 1-5). With a greater sample number, it has been interesting to see a stronger climate signal than expected. The results from this analysis were presented at the Geological Society of America meeting as an oral presentation, and the manuscript is complete and under discussion with coauthors. It will shortly be submitted to a scientific journal.
期刊论文(10)
专著(0)
科研奖励(0)
会议论文
Relationship between the Southern Westerly Winds and glacial dynamics at the Sabrina Coast, East Antarctica as determined by beryllium isotope ratios
由铍同位素比确定的东南极洲萨布丽娜海岸南西风与冰川动力学之间的关系
DOI: --
发表时间: 2022
期刊:
影响因子: --
作者: [Murakami Chiaki, Hoshino Fumi, Sakai Hiromichi, Hayashi Yasuhiro, Yamashita Atsushi, Sakane Fumio, Bethany Behrens]
通讯作者: Bethany Behrens
Beryllium isotope variations recorded in the Adélie Basin, East Antarctica reflect Holocene changes in ice dynamics, productivity, and scavenging efficiency
南极洲东部阿德利盆地记录的铍同位素变化反映了全新世冰动力学、生产力和清除效率的变化
DOI: 10.1016/j.qsa.2022.100054
发表时间: 2022
期刊: Quaternary Science Advances
影响因子: 4.5
作者: [Behrens, Bethany C., Yokoyama, Yusuke, Miyairi, Yosuke, Sproson, Adam D., Yamane, Masako, Jimenez-Espejo, Francisco J., McKay, Robert M., Johnson, Katelyn M., Escutia, Carlota, Dunbar, Robert B.]
通讯作者: Dunbar, Robert B.
Climatic and paleomagnetic forcing of beryllium isotope ratios of Lake Selina, Tasmania from 125,000 years ago to the present
125,000年前至今塔斯马尼亚塞利纳湖铍同位素比值的气候和古地磁强迫
DOI: --
发表时间: 2022
期刊:
影响因子: --
作者: [Yamada Haruka, Hoshino Fumi, Lu Qiang, Sakane Fumio, Yuma Uematsu, Takuya Mieno, Bethany C Behrens]
通讯作者: Bethany C Behrens
East Antarctic meltwater influx from the Wilkes Subglacial Basin since the Last Glacial Maximum as determined by beryllium isotopes
由铍同位素确定的自末次盛冰期以来来自威尔克斯冰下盆地的南极东部融水流入量
DOI: --
发表时间: 2021
期刊:
影响因子: --
作者: [Bethany Behrens, Yosuke Miyairi, Adam D. Sproson, Masako Yamane, Yusuke Yokoyama]
通讯作者: Yusuke Yokoyama
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