气候变化领域集成服务门户(CCPortal): Martian Mantle Heat Flow Estimate From the Lack of Lithospheric Flexure in the South Pole of Mars: Implications for Planetary Evolution and Basal Melting

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DOI	10.1029/2020GL091409
	Martian Mantle Heat Flow Estimate From the Lack of Lithospheric Flexure in the South Pole of Mars: Implications for Planetary Evolution and Basal Melting
	Ojha L.; Karimi S.; Buffo J.; Nerozzi S.; Holt J.W.; Smrekar S.; Chevrier V.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:2
英文摘要	Heat flow measurements are important for our understanding of planetary interior composition, structure, and evolution. In the absence of direct measurement, a first-order estimate of a planet's interior heat flow can be made by modeling the lithosphere's viscoelastic response to stress exerted by large surface loads. Here, we model the Martian lithosphere's viscoelastic response to the south polar layered deposits and estimate the local mantle heat flow to be less than ∼10 mW/m2. Combined with our previous estimate of the low mantle heat flow from the north polar region (∼7 mW/m2), our results suggest that the Martian mantle may be globally depleted in heat-producing elements. The relatively low mantle heat flow has significant implications for Mars' long-term thermal evolution and on the possibility of basal melting in the south polar region. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Heat transfer; Melting; Viscoelasticity; Direct measurement; Heat-producing elements; Lithospheric flexure; North polar region; Planetary evolutions; Planetary interiors; South polar region; Viscoelastic response; Flow measuring instruments
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169269
作者单位	Department of Earth and Planetary Sciences, The State University of New Jersey, Piscataway, NJ, United States; Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD, United States; Thayer School of Engineering, Dartmouth College, Hanover, NH, United States; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, United States; Department of Geosciences, University of Arizona, Tucson, AZ, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Arkansas Center for Space and Planetary Sciences, University of Arkansas, Fayetteville, AR, United States
推荐引用方式 GB/T 7714	Ojha L.,Karimi S.,Buffo J.,et al. Martian Mantle Heat Flow Estimate From the Lack of Lithospheric Flexure in the South Pole of Mars: Implications for Planetary Evolution and Basal Melting[J],2021,48(2).
APA	Ojha L..,Karimi S..,Buffo J..,Nerozzi S..,Holt J.W..,...&Chevrier V..(2021).Martian Mantle Heat Flow Estimate From the Lack of Lithospheric Flexure in the South Pole of Mars: Implications for Planetary Evolution and Basal Melting.Geophysical Research Letters,48(2).
MLA	Ojha L.,et al."Martian Mantle Heat Flow Estimate From the Lack of Lithospheric Flexure in the South Pole of Mars: Implications for Planetary Evolution and Basal Melting".Geophysical Research Letters 48.2(2021).