Constraints on the Source of the Martian Magnetic Anomalies Inferred From Relaxation Time of Remanent Magnetization

doi:10.1029/2018GL077498

GSTDTAP > 气候变化

DOI	10.1029/2018GL077498
	Constraints on the Source of the Martian Magnetic Anomalies Inferred From Relaxation Time of Remanent Magnetization
	Sato, M.1,2; Yamamoto, Y.3; Nishioka, T.4; Kodama, K.5; Mochizuki, N.6; Ushioda, M.7; Nakada, R.8; Tsunakawa, H.2
	2018-07-16
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2018
卷号	45 期号:13 页码:6417-6427
文章类型	Article
语种	英语
国家	Japan
英文摘要	The strong magnetic anomalies observed over Mars originate from remanence of deep crust, which should be preserved during 4 billion years. We estimate the relaxation time of remanence carried by various types of magnetite, considering temperature and pressure dependences of magnetic parameters. The estimation shows that acicular-shaped single-domain magnetite is needed to retain the thick magnetized layer during 4 billion years in a low-Urey ratio scenario, whereas acicular-shaped single-domain, equidimensional single-domain, and pseudo-single-domain magnetites can be the source of anomalies in a high-Urey ratio scenario. In each case, fine-grained (<10m) and preferably high-aspect-ratio magnetite in deep crust is needed to explain the observed anomalies.
英文关键词	Martian magnetic anomaly magnetite relaxation time of remanent magnetization
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000439784300011
WOS关键词	HYSTERESIS PARAMETERS ; HYDROSTATIC-PRESSURE ; CRUSTAL MAGNETIZATION ; THERMAL EVOLUTION ; MARS ; PLAGIOCLASE ; HISTORY ; MANTLE ; WATER
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/28509
专题	气候变化
作者单位	1.Univ Tokyo, Dept Earth & Planetary Sci, Tokyo, Japan; 2.Tokyo Inst Technol, Dept Earth & Planetary Sci, Tokyo, Japan; 3.Kochi Univ, Ctr Adv Marine Core Res, Kochi, Japan; 4.Kochi Univ, Grad Sch Integrated Arts & Sci, Kochi, Japan; 5.Doshisha Univ, Res Ctr Knowledge Sci Cultural Heritage, Kyoto, Japan; 6.Kumamoto Univ, Prior Org Innovat & Excellence, Kumamoto, Japan; 7.Natl Inst Adv Ind Sci & Technol, Geol Survey Japan, Tsukuba, Japan; 8.Japan Agcy Marine Earth Sci & Technol JAMSTEC, Kochi Inst Core Sample Res, Kochi, Japan
推荐引用方式 GB/T 7714	Sato, M.,Yamamoto, Y.,Nishioka, T.,et al. Constraints on the Source of the Martian Magnetic Anomalies Inferred From Relaxation Time of Remanent Magnetization[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(13):6417-6427.
APA	Sato, M..,Yamamoto, Y..,Nishioka, T..,Kodama, K..,Mochizuki, N..,...&Tsunakawa, H..(2018).Constraints on the Source of the Martian Magnetic Anomalies Inferred From Relaxation Time of Remanent Magnetization.GEOPHYSICAL RESEARCH LETTERS,45(13),6417-6427.
MLA	Sato, M.,et al."Constraints on the Source of the Martian Magnetic Anomalies Inferred From Relaxation Time of Remanent Magnetization".GEOPHYSICAL RESEARCH LETTERS 45.13(2018):6417-6427.