Loess—palaeosol sequence in Kashmir: Correlation of mineral magnetic stratigraphy with the marine palaeoclimatic record
作者:
S. K. Gupta,
P. Sharma,
N. Juyal,
D. P. Agrawal,
期刊:
Journal of Quaternary Science
(WILEY Available online 1991)
卷期:
Volume 6,
issue 1
页码: 3-12
ISSN:0267-8179
年代: 1991
DOI:10.1002/jqs.3390060103
出版商: John Wiley&Sons, Ltd
关键词: Kashmir loess;mineral magnetism;palaeoclimate
数据来源: WILEY
摘要:
AbstractIn this paper we use the mineral magnetic data (χ and χfd) to stratigraphically correlate different loess‐palaeosol profiles in Kashmir Valley. The two available thermoluminescence (TL) chronologies on the Kashmir loess profiles have been reinterpreted to identify the soil of the Last Interglacial (ca. 125 000 yr BP). We show that the mineral magnetic data correlates well with the global marine δ18O record. This correlation has revealed the well‐known Milankovich periodicities of 40 ka and 20 ka in the loess‐palaeosol record. On the basis of this study, we conclude that loess deposition in the Kashmir Valley started around 200 ka and not 350 ka ago as suggested by earlier workers, and that magnetic susceptibility variations provide a tool to decipher climatic changes from loess‐palaeosol
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