IGGCAS OpenIR
Onset of Asian desertification by 22 Myr ago inferred from loess deposits in China
Guo, ZT; Ruddiman, WF; Hao, QZ; Wu, HB; Qiao, YS; Zhu, RX; Peng, SZ; Wei, JJ; Yuan, BY; Liu, TS
2002-03-14
Source PublicationNATURE
ISSN0028-0836
Volume416Issue:6877Pages:159-163
SubtypeArticle
AbstractThe initial desertification in the Asian interior is thought to be one of the most prominent climate changes in the Northern Hemisphere during the Cenozoic era(1-4). But the dating of this transition is uncertain, partly because desert sediments are usually scattered, discontinuous and difficult to date. Here we report nearly continuous aeolian deposits covering the interval from 22 to 6.2 million years ago, on the basis of palaeomagnetic measurements and fossil evidence. A total of 231 visually definable aeolian layers occur as brownish loesses interbedded with reddish soils. This new evidence indicates that large source areas of aeolian dust and energetic winter monsoon winds to transport the material must have existed in the interior of Asia by the early Miocene epoch, at least 14 million years earlier than previously thought(3,5). Regional tectonic changes and ongoing global cooling are probable causes of these changes in aridity and circulation in Asia.
WOS HeadingsScience & Technology
WOS KeywordNORTHERN-HEMISPHERE ; PLATEAU ; UPLIFT ; MAGNETOSTRATIGRAPHY ; CLIMATE ; ORIGIN
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000174348100032
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:961[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/77726
Collection中国科学院地质与地球物理研究所
Corresponding AuthorGuo, ZT
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Univ Virginia, Dept Environm Sci, Charlottesville, VA 22903 USA
Recommended Citation
GB/T 7714
Guo, ZT,Ruddiman, WF,Hao, QZ,et al. Onset of Asian desertification by 22 Myr ago inferred from loess deposits in China[J]. NATURE,2002,416(6877):159-163.
APA Guo, ZT.,Ruddiman, WF.,Hao, QZ.,Wu, HB.,Qiao, YS.,...&Liu, TS.(2002).Onset of Asian desertification by 22 Myr ago inferred from loess deposits in China.NATURE,416(6877),159-163.
MLA Guo, ZT,et al."Onset of Asian desertification by 22 Myr ago inferred from loess deposits in China".NATURE 416.6877(2002):159-163.
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