干旱区生态环境知识资源中心(Arid): Direct comparison of site-specific and basin-scale denudation rate estimation by in situ cosmogenic nuclides: an example from the Abukuma Mountains, Japan

Arid

DOI	10.1186/2197-4284-1-9
	Direct comparison of site-specific and basin-scale denudation rate estimation by in situ cosmogenic nuclides: an example from the Abukuma Mountains, Japan
	Nakamura, Atsunori; Yokoyama, Yusuke; Shiroya, Kazuyo; Miyairi, Yosuke; Matsuzaki, Hiroyuki
通讯作者	Yokoyama, Y
来源期刊	PROGRESS IN EARTH AND PLANETARY SCIENCE
ISSN	2197-4284
出版年	2014
卷号	1
英文摘要	Accurate determination of denudation rates is important in understanding Earth surface system dynamics. In situ produced cosmogenic nuclides, such as Be-10 and Al-26, provide a valuable insight but are not entirely free from complications. In this study, denudation rates are determined for the Abukuma Mountains, Japan, using both site-specific and basin-scale methods. Considered with density measured in the field, distinct and systematic differences between the two methods are identified. Site-specific rates calculated from depth profiles of cosmogenic nuclides ((10) Be and Al-26) at topographic highs indicate a rate of 67 to 85 mm/kyr, whereas basin-scale averaged denudation rates derived from the concentration of cosmogenic nuclides in fluvial sediments show 114 to 180 mm/kyr. This is the first comparison of these two commonly used methods in the same region in Japan, where the entire study area is characterized by well-developed saprolite. These results indicate that differential denudation rates between topographic highs and valleys reflect increasing local topographic relief of the study area. Comparison between rates derived from depth profiles and those applicable to the entire basin is important for understanding landscape development.
英文关键词	Denudation rate Erosion rate In situ cosmogenic nuclide Be-10 and Al-26 Depth profile Density
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000215790200009
WOS关键词	TERM EROSION RATES ; SOIL PRODUCTION ; SEDIMENT PRODUCTION ; NAMIB DESERT ; BE-10 ; AL-26 ; DEPTH ; RADIONUCLIDES ; SURFACES ; INSITU
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/330719
作者单位	[Nakamura, Atsunori; Yokoyama, Yusuke; Miyairi, Yosuke] Univ Tokyo, Atmosphere & Ocean Res Inst, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778564, Japan; [Nakamura, Atsunori; Yokoyama, Yusuke] Univ Tokyo, Grad Sch Sci, Dept Earth & Planetary Sci, Bunkyo Ku, Tokyo 1130033, Japan; [Yokoyama, Yusuke] Japan Agcy Marine Sci & Technol JAMSTEC, Inst Biogeosci, Yokosuka, Kanagawa 2370061, Japan; [Shiroya, Kazuyo] Natl Inst Adv Ind Sci & Technol, Geol Survey Japan, Tsukuba, Ibaraki 3058567, Japan; [Matsuzaki, Hiroyuki] Univ Tokyo, Dept Nucl Engn & Management, Bunkyo Ku, Tokyo 1130032, Japan
推荐引用方式 GB/T 7714	Nakamura, Atsunori,Yokoyama, Yusuke,Shiroya, Kazuyo,et al. Direct comparison of site-specific and basin-scale denudation rate estimation by in situ cosmogenic nuclides: an example from the Abukuma Mountains, Japan[J],2014,1.
APA	Nakamura, Atsunori,Yokoyama, Yusuke,Shiroya, Kazuyo,Miyairi, Yosuke,&Matsuzaki, Hiroyuki.(2014).Direct comparison of site-specific and basin-scale denudation rate estimation by in situ cosmogenic nuclides: an example from the Abukuma Mountains, Japan.PROGRESS IN EARTH AND PLANETARY SCIENCE,1.
MLA	Nakamura, Atsunori,et al."Direct comparison of site-specific and basin-scale denudation rate estimation by in situ cosmogenic nuclides: an example from the Abukuma Mountains, Japan".PROGRESS IN EARTH AND PLANETARY SCIENCE 1(2014).