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学科主题: 地理学::自然地理学
题名: Responses of trophic structure and zooplankton community to salinity and temperature in Tibetan lakes: Implication for the effect of climate warming
作者: Lin, QQ (Lin, Qiuqi)1; Xu, L (Xu, Lei)1; Hou, JZ (Hou, Juzhi)2; Liu, ZW (Liu, Zhengwen)1, 5; Jeppesen, E (Jeppesen, Erik)3, 4, 5; Han, BP (Han, Bo-Ping)1
通讯作者: Han, BP
关键词: HELIUM DIFFUSION KINETICS ; ATOM-PROBE TOMOGRAPHY ; ION IRRADIATION ; INDUCED AMORPHIZATION ; BEAM IRRADIATION ; NATURAL ZIRCON ; NUCLEAR-WASTE ; HEAVY-IONS ; CERAMICS ; CRYSTALLINE
刊名: SCIENTIFIC REPORTS
发表日期: 2017
DOI: 10.1038/s41598-017-14379-9
卷: 7, 期:0, 页:14108
收录类别: SCI
合作性质: 国际
文章类型: Article
类目[WOS]: Multidisciplinary Sciences ; Science & Technology - Other Topics
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: A major issue in thermochronology and U-Th-Pb dating is the effect of radiation damage, created by a-recoils from alpha-decay events, on the diffusion of radiogenic elements (e.g., He and Pb) in host mineral. Up until now, thermal events have been considered as the only source of energy for the recovery of radiation-damage. However, irradiation, such as from the alpha-particle of the a-decay event, can itself induce damage recovery. Quantification of radiation-induced recovery caused by alpha-particles during alpha-decay events has not been possible, as the recovery process at the atomic-scale has been difficult to observe. Here we present details of the dynamics of the amorphous-to-crystalline transition process during a-particle irradiations using in situ transmission electron microscopy (TEM) and consecutive ion-irradiations: 1 MeV Kr2+ (simulating alpha-recoil damage), followed by 400 keV He+ (simulating a-particle annealing). Upon the He+ irradiation, partial recrystallization of the original, fully-amorphous Durango apatite was clearly evident and quantified based on the gradual appearance of new crystalline domains in TEM images and new diffraction maxima in selected area electron diffraction patterns. Thus, alpha-particle induced annealing occurs and must be considered in models of alpha-decay event damage and its effect on the diffusion of radiogenic elements in geochronology and thermochronology.
语种: 英语
WOS记录号: WOS:000413816000038
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7961
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Jinan Univ, Dept Ecol, Guangzhou 510632, Guangdong, Peoples R China.
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China.
3.Aarhus Univ, Dept Biosci, DK-8600 Silkeborg, Denmark.
4.Aarhus Univ, Arctic Res Ctr, DK-8600 Silkeborg, Denmark.
5.Chinese Acad Sci, Sinodanish Ctr Educ & Res, Beijing 100101, Peoples R China.

Recommended Citation:
Lin, QQ ,Xu, L ,Hou, JZ ,et al. Responses of trophic structure and zooplankton community to salinity and temperature in Tibetan lakes: Implication for the effect of climate warming[J]. SCIENTIFIC REPORTS,2017,7(0):14108.
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