QQ客服 官方微博 反馈留言

	Direct measurement of thermal conductivity in solid iron at planetary core conditions
	Konopkova, Zuzana1,7; McWilliams, R. Stewart2,3; Gomez-Perez, Natalia2,3,4; Goncharov, Alexander F.5,6
刊名	NATURE
	2016-06-02
卷号	534期号:7605页码:99-+
DOI	10.1038/nature18009
文献子类	Article
英文摘要	The conduction of heat through minerals and melts at extreme pressures and temperatures is of central importance to the evolution and dynamics of planets. In the cooling Earth's core, the thermal conductivity of iron alloys defines the adiabatic heat flux and therefore the thermal and compositional energy available to support the production of Earth's magnetic field via dynamo action(1-3). Attempts to describe thermal transport in Earth's core have been problematic, with predictions of high thermal conductivity(4-7) at odds with traditional geophysical models and direct evidence for a primordial magnetic field in the rock record(8-10). Measurements of core heat transport are needed to resolve this difference. Here we present direct measurements of the thermal conductivity of solid iron at pressure and temperature conditions relevant to the cores of Mercury-sized to Earth-sized planets, using a dynamically laser-heated diamond-anvil cell(11,12). Our measurements place the thermal conductivity of Earth's core near the low end of previous estimates, at 18-44 watts per metre per kelvin. The result is in agreement with palaeomagnetic measurements(10) indicating that Earth's geodynamo has persisted since the beginning of Earth's history, and allows for a solid inner core as old as the dynamo.
WOS关键词	SITU X-RAY ; DIAMOND-ANVIL CELL ; EARTHS INNER-CORE ; HIGH-PRESSURE ; ELECTRICAL-RESISTIVITY ; REFRACTIVE-INDEX ; LIQUID FE ; EVOLUTION ; ALLOY ; DIFFRACTION
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000376962300041
资助机构	NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; NSF(DMR-1039807 ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Army Research Office(56122-CH-H) ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; Carnegie Institution of Washington ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; National Natural Science Foundation of China(21473211) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; Chinese Academy of Science(YZ201524) ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; University of Edinburgh ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; British Council Researcher Links Programme ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1015239 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR-1520648 ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867) ; EAR/IF-1128867)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/22043]
专题	合肥物质科学研究院_中科院固体物理研究所
作者单位	1.DESY Photon Sci, Notkestr 85, DE-22607 Hamburg, Germany 2.Univ Edinburgh, Sch Phys & Astron, Peter Guthrie Tait Rd, Edinburgh EH9 3FD, Midlothian, Scotland 3.Univ Edinburgh, Ctr Sci Extreme Condit, Peter Guthrie Tait Rd, Edinburgh EH9 3FD, Midlothian, Scotland 4.Univ Los Andes, Dept Geociencias, Bogota, Colombia 5.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, 350 Shushanghu Rd, Hefei 230031, Anhui, Peoples R China 6.Carnegie Inst Sci, Geophys Lab, 5251 Broad Branch Rd NW, Washington, DC 20015 USA 7.European XFEL GmbH, Notkestr 85, DE-22607 Hamburg, Germany
推荐引用方式 GB/T 7714	Konopkova, Zuzana,McWilliams, R. Stewart,Gomez-Perez, Natalia,et al. Direct measurement of thermal conductivity in solid iron at planetary core conditions[J]. NATURE,2016,534(7605):99-+.
APA	Konopkova, Zuzana,McWilliams, R. Stewart,Gomez-Perez, Natalia,&Goncharov, Alexander F..(2016).Direct measurement of thermal conductivity in solid iron at planetary core conditions.NATURE,534(7605),99-+.
MLA	Konopkova, Zuzana,et al."Direct measurement of thermal conductivity in solid iron at planetary core conditions".NATURE 534.7605(2016):99-+.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。