IGGCAS OpenIR  > 地球与行星物理院重点实验室
Effects of the Compositional Viscosity Ratio on the Long-Term Evolution of Thermochemical Reservoirs in the Deep Mantle
Li, Yang1,2,3; Deschamps, Frederic4; Yang, Jianfeng2,3; Chen, Lin2,3; Zhao, Liang2,3; Tackley, Paul J.5
2019-08-28
Source PublicationGEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
Volume46Issue:16Pages:9591-9601
AbstractNumerical experiments of thermochemical mantle convection in 2-D spherical annulus geometry are performed to investigate the effects of compositional viscosity ratio (Delta eta(C)) on the long-term evolution of reservoirs of dense, primordial material in the lowermost mantle of the Earth. The internal heating rate in the primordial material is larger than in the ambient mantle by a factor of 10, accounting for the fact that this material may be enriched in radiogenic elements. We find that if the chemical density contrast is large (128 kg/m(3)), Delta eta(C) plays only a second-order role on the long-term stability of these reservoirs. As the chemical density contrast decreases to smaller values (90 kg/m(3)), Delta eta(C) plays a more significant role. More specifically, when Delta eta(C) is large, around 10 or larger, convection within the reservoirs of primordial material is less vigorous, which increases the temperature and thermal buoyancy of these structures. This, in turn, can eventually lead them to become unstable, with the majority of the primordial material being advected into the large-scale mantle circulation.
DOI10.1029/2019GL083668
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award
WOS KeywordSHEAR-VELOCITY ; PRIMORDIAL RESERVOIRS ; TRAVEL-TIME ; NORMAL-MODE ; CONVECTION ; TOMOGRAPHY ; HEAT ; CONSTRAINTS ; HETEROGENEITIES ; GENERATION
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[41888101] ; National Natural Science Foundation of China (NSFC)[41704100] ; National Natural Science Foundation of China (NSFC)[41625016] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB18000000] ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; Academia Sinica Investigator Award[AS-IA-108-M03]
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program, Chinese Academy of Sciences ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award ; Academia Sinica Investigator Award
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000490966700033
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/93913
Collection地球与行星物理院重点实验室
岩石圈演化国家重点实验室
Corresponding AuthorLi, Yang; Deschamps, Frederic
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher & Evolut, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
4.Acad Sinica, Inst Earth Sci, Taipei, Taiwan
5.Swiss Fed Inst Technol, Dept Earth Sci, Inst Geophys, Zurich, Switzerland
First Author AffilicationKey Laboratory of Earth and Planetary Physics, Chinese Academy of Sciences;  Institute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Earth and Planetary Physics, Chinese Academy of Sciences;  Institute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li, Yang,Deschamps, Frederic,Yang, Jianfeng,et al. Effects of the Compositional Viscosity Ratio on the Long-Term Evolution of Thermochemical Reservoirs in the Deep Mantle[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(16):9591-9601.
APA Li, Yang,Deschamps, Frederic,Yang, Jianfeng,Chen, Lin,Zhao, Liang,&Tackley, Paul J..(2019).Effects of the Compositional Viscosity Ratio on the Long-Term Evolution of Thermochemical Reservoirs in the Deep Mantle.GEOPHYSICAL RESEARCH LETTERS,46(16),9591-9601.
MLA Li, Yang,et al."Effects of the Compositional Viscosity Ratio on the Long-Term Evolution of Thermochemical Reservoirs in the Deep Mantle".GEOPHYSICAL RESEARCH LETTERS 46.16(2019):9591-9601.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Yang]'s Articles
[Deschamps, Frederic]'s Articles
[Yang, Jianfeng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Yang]'s Articles
[Deschamps, Frederic]'s Articles
[Yang, Jianfeng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Yang]'s Articles
[Deschamps, Frederic]'s Articles
[Yang, Jianfeng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

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