Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3959

Authors: Florindo, F.*
Zhu, R.*
Guo, B.*
Yue, L.*
Pan, Y.*
Speranza, F.*
Title: Magnetic proxy climate results from the Duanjiapo loess section, southernmost extremity of the Chinese loess plateau
Title of journal: Journal of Geophysical Research
Series/Report no.: B1 / 104 (1999)
Publisher: AGU
Issue Date: 10-Jan-1999
Keywords: magnetic mineralogy
climatic cycles
Loess
China
Abstract: We report mineral magnetic results from a 7.5 m loess sequence (150 samples) from the southernmost extremity of the Chinese loess plateau (which includes the last two glacial cycles). In this area the loess sediments experienced particularly intense weathering processes. The magnetic assemblage is dominated by a mixture of pseudo-single domain (PSD) and multidomain (MD) magnetite with associated superparamagnetic (SP) grains of either magnetite or maghemite in the paleosols and weathered loess horizons. All the rock magnetic parameters fluctuate in parallel with marine sediment δ18O data over the last 150Kyr, thus reflecting changing global paleoclimatic conditions. This relationship is also supported by the evidence of Milankovitch cycles in the magnetic susceptibility record. Paleorainfall estimates, when compared with other studies from the Chinese loess plateau, underline the (more) humid character of this region during the last ~130 kyr.
Appears in Collections:01.01.02. Climate
04.05.07. Rock magnetism
04.05.06. Paleomagnetism
Papers Published / Papers in press

Files in This Item:

File SizeFormatVisibility
1998JB900001.pdf1.24 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Share this record
Del.icio.us

Citeulike

Connotea

Facebook

Stumble it!

reddit


 

Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA