globalchange  > 气候变化与战略
DOI: 10.5194/hess-22-5579-2018
论文题名:
Evaluation of lacustrine groundwater discharge; hydrologic partitioning; and nutrient budgets in a proglacial lake in the Qinghai-Tibet Plateau: Using 222Rn and stable isotopes
作者: Luo X.; Kuang X.; Jimmy Jiao J.; Liang S.; Mao R.; Zhang X.; Li H.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2018
卷: 22, 期:10
起始页码: 5579
结束页码: 5598
语种: 英语
Scopus关键词: Budget control ; Deformation ; Groundwater ; Tectonics ; Conceptual model ; Ground water discharge ; Gulf of California ; Plane strain analysis ; Plate reconstruction ; Qinghai Tibet plateau ; Standard deviation ; Stress and strain ; Geodynamics ; continental breakup ; discharge ; hydrological change ; kinematics ; lacustrine environment ; nutrient budget ; Pangaea ; plane strain ; proglacial environment ; reconstruction ; rift zone ; rifting ; software ; stable isotope ; tectonic evolution ; Antarctica ; Atlantic Ocean ; Atlantic Ocean (South) ; China ; Gulf of California ; India ; Pacific Ocean ; Qinghai-Xizang Plateau
英文摘要: Movements of tectonic plates often induce oblique deformation at divergent plate boundaries. This is in striking contrast with traditional conceptual models of rifting and rifted margin formation, which often assume 2-D deformation where the rift velocity is oriented perpendicular to the plate boundary. Here we quantify the validity of this assumption by analysing the kinematics of major continent-scale rift systems in a global plate tectonic reconstruction from the onset of Pangea breakup until the present day. We evaluate rift obliquity by joint examination of relative extension velocity and local rift trend using the script-based plate reconstruction software pyGPlates. Our results show that the global mean rift obliquity since 230 Ma amounts to 34° with a standard deviation of 24°, using the convention that the angle of obliquity is spanned by extension direction and rift trend normal. We find that more than ∼ 70% of all rift segments exceeded an obliquity of 20° demonstrating that oblique rifting should be considered the rule, not the exception. In many cases, rift obliquity and extension velocity increase during rift evolution (e.g. Australia-Antarctica, Gulf of California, South Atlantic, India-Antarctica), which suggests an underlying geodynamic correlation via obliquity-dependent rift strength. Oblique rifting produces 3-D stress and strain fields that cannot be accounted for in simplified 2-D plane strain analysis. We therefore highlight the importance of 3-D approaches in modelling, surveying, and interpretation of most rift segments on Earth where oblique rifting is the dominant mode of deformation. © 2018 Author(s).
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163155
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Luo, X., Department of Earth Sciences, University of Hong Kong, Hong Kong, Hong Kong, University of Hong Kong, Shenzhen Research Institute (SRI), Shenzhen, Hong Kong, University of Hong Kong-Zhejiang Institute of Research and Innovation (HKU-ZIRI), Hangzhou, China; Kuang, X., School of Environmental Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Rd., Shenzhen, China; Jimmy Jiao, J., Department of Earth Sciences, University of Hong Kong, Hong Kong, Hong Kong, University of Hong Kong, Shenzhen Research Institute (SRI), Shenzhen, Hong Kong, University of Hong Kong-Zhejiang Institute of Research and Innovation (HKU-ZIRI), Hangzhou, China; Liang, S., School of Water Resources and Environment, China University of Geosciences, 29 Xueyuan Road, Beijing, China; Mao, R., Department of Earth Sciences, University of Hong Kong, Hong Kong, Hong Kong, University of Hong Kong, Shenzhen Research Institute (SRI), Shenzhen, Hong Kong, School of Environmental Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Rd., Shenzhen, China; Zhang, X., Department of Earth Sciences, University of Hong Kong, Hong Kong, Hong Kong, University of Hong Kong, Shenzhen Research Institute (SRI), Shenzhen, Hong Kong, School of Environmental Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Rd., Shenzhen, China; Li, H., School of Environmental Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Rd., Shenzhen, China

Recommended Citation:
Luo X.,Kuang X.,Jimmy Jiao J.,et al. Evaluation of lacustrine groundwater discharge; hydrologic partitioning; and nutrient budgets in a proglacial lake in the Qinghai-Tibet Plateau: Using 222Rn and stable isotopes[J]. Hydrology and Earth System Sciences,2018-01-01,22(10)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Luo X.]'s Articles
[Kuang X.]'s Articles
[Jimmy Jiao J.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Luo X.]'s Articles
[Kuang X.]'s Articles
[Jimmy Jiao J.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Luo X.]‘s Articles
[Kuang X.]‘s Articles
[Jimmy Jiao J.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.