Use of magnetic signatures to correlate tephra layers in Holocene loessial soil profiles from a small region, SE Iceland
文献类型：期刊论文
| 作者 | Xia, Dunsheng; Chun, Xi; Bloemendal, Jan; Chiverrell, Richard C.; Chen, Fahu |
| 刊名 | ENVIRONMENTAL GEOLOGY
 |
| 出版日期 | 2007-02-01 |
| 卷号 | 51期号:8页码:1425-1437 |
| 关键词 | environmental magnetism tephra principal coordinates analysis Iceland |
| ISSN号 | 0943-0105 |
| DOI | 10.1007/s00254-006-0439-2 |
| 通讯作者 | Xia, Dunsheng(dsxia@lzb.ac.cn) |
| 英文摘要 | Rock magnetic measurements have been applied to two adjacent loessial soil sections from a small region, SE Iceland. The soils are composed of reworked locally derived sediment (including airfall tephra) and also contain several visible discrete airfall tephra layers. The main magnetic minerals in the airfall tephras are ferrimagnetic (e.g. magnetite) with paramagnetic minerals also present. The main magnetic grain sizes in the tephras are pseudo single domain. The results show that individual tephras do not have unique magnetic signatures that can be used for identification and correlation between sedimentary sequences. However, a correlation of tephra layers was achieved through the application of statistical techniques to a comprehensive dataset of magnetic parameters. Similarity coefficients and Euclidian distance measures were used to identify the best correlation between tephra layers in the two soil profiles. The technique works well providing some tephras present within both profiles have been formally identified (e.g. Oraefajokulla AD 1362) using electron microprobe analyses. Given this initial framework, the statistical analyses of the magnetic parameters can help in the identification and correlation of unknown tephras between two soil profiles. |
| 收录类别 | SCI |
| WOS关键词 | LAKE-SEDIMENTS ; NORTH-ATLANTIC ; GRAIN-SIZE ; GEOCHEMISTRY |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000244186500013 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555875 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Xia, Dunsheng |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Desert & Desertificat, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Univ Liverpool, Dept Geog, Liverpool L69 3BX, Merseyside, England 3.Lanzhou Univ, Key Lab W China Environm Syst Minist Educ, CAEP, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Dunsheng,Chun, Xi,Bloemendal, Jan,et al. Use of magnetic signatures to correlate tephra layers in Holocene loessial soil profiles from a small region, SE Iceland[J]. ENVIRONMENTAL GEOLOGY,2007,51(8):1425-1437. |
| APA | Xia, Dunsheng,Chun, Xi,Bloemendal, Jan,Chiverrell, Richard C.,&Chen, Fahu.(2007).Use of magnetic signatures to correlate tephra layers in Holocene loessial soil profiles from a small region, SE Iceland.ENVIRONMENTAL GEOLOGY,51(8),1425-1437. |
| MLA | Xia, Dunsheng,et al."Use of magnetic signatures to correlate tephra layers in Holocene loessial soil profiles from a small region, SE Iceland".ENVIRONMENTAL GEOLOGY 51.8(2007):1425-1437. |
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来源：寒区旱区环境与工程研究所
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