Scanning SQUID microscopy of a ferromanganese crust from the northwestern Pacific: Submillimeter scale magnetostratigraphy as a new tool for age determination and mapping of environmental magnetic parameters

doi:10.1002/2017GL073201

GSTDTAP > 气候变化

DOI	10.1002/2017GL073201
	Scanning SQUID microscopy of a ferromanganese crust from the northwestern Pacific: Submillimeter scale magnetostratigraphy as a new tool for age determination and mapping of environmental magnetic parameters
	Noguchi, A.1,2; Oda, H.1; Yamamoto, Y.2; Usui, A.2; Sato, M.1; Kawai, J.3
	2017-06-16
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2017
卷号	44 期号:11
文章类型	Article
语种	英语
国家	Japan
英文摘要	Ferromanganese crusts record long-term deep-sea environmental changes. Thus, providing their reliable high-resolution age models is important. We applied a magnetostratigraphic technique to estimate the growth rate of a ferromanganese crust using scanning SQUID (superconducting quantum interference device) microscope (SSM). SSM is designed to map the magnetic field across thin sections with submillimeter resolution. The crust sample was taken from the Takuyo-Daigo Seamount, northwestern Pacific, and recorded a limited supply of dust and sediment from continents. After drift correction and removal of spike noises, the magnetic field values were stacked within the areas of high signal-to-noise ratios. By correlating the obtained profiles with a standard geomagnetic polarity timescale, we obtained an average growth rate of 3.370.06mm/Ma, which is consistent with that obtained by Be-10/Be-9 geochronology (2.930.15mm/Ma). S ratio mapping shows low values after similar to 3Ma, associated with voids between columnar structures.
英文关键词	scanning SQUID microscope magnetostratigraphy ferromanganese crust paleomagnetism rock magnetism age model
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000404382600014
WOS关键词	NEODYMIUM ISOTOPES ; TEMPERATURE ; SEAWATER ; GROWTH ; OCEAN
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/28556
专题	气候变化
作者单位	1.Geol Survey Japan, Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki, Japan; 2.Kochi Univ, Ctr Adv Marine Core Res, Kochi, Japan; 3.Kanazawa Inst Technol, Appl Elect Lab, Kanazawa, Ishikawa, Japan
推荐引用方式 GB/T 7714	Noguchi, A.,Oda, H.,Yamamoto, Y.,et al. Scanning SQUID microscopy of a ferromanganese crust from the northwestern Pacific: Submillimeter scale magnetostratigraphy as a new tool for age determination and mapping of environmental magnetic parameters[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(11).
APA	Noguchi, A.,Oda, H.,Yamamoto, Y.,Usui, A.,Sato, M.,&Kawai, J..(2017).Scanning SQUID microscopy of a ferromanganese crust from the northwestern Pacific: Submillimeter scale magnetostratigraphy as a new tool for age determination and mapping of environmental magnetic parameters.GEOPHYSICAL RESEARCH LETTERS,44(11).
MLA	Noguchi, A.,et al."Scanning SQUID microscopy of a ferromanganese crust from the northwestern Pacific: Submillimeter scale magnetostratigraphy as a new tool for age determination and mapping of environmental magnetic parameters".GEOPHYSICAL RESEARCH LETTERS 44.11(2017).