NDLI: Rock-magnetic properties of Neogene sediments, northern flank of Tianshan Mountains

Content Provider	Springer Nature Link
Author	Li, ChuanXin Guo, ZhaoJie Meng, ZiFang Li, HaiYan Zhang, ZhiCheng Wu, ChaoDong
Copyright Year	2007
Abstract	Analyses of rock-magnetic properties of Neogene sediments of the Taxihe section, northern Tianshan Mountains, show that the section can be classified into three categories including lacustrine facies, fluvial facies and alluvial facies, which correspond to the lower, middle and upper of the Taxihe section respectively. The magnetic minerals of the lacustrine facies may be affected by the process of weathering, lithogenesis and biolithogenesis besides the source of the sediments. The natural remanence intensities are between 10$^{−3}$ A/m and 10$^{−2}$ A/m. The minerals are dominated by magnetite and the high coercive magnetic mineral may be goethite. The magnetic grains are the mixture of PSD+SD or SD+SP. The natural remanence intensities of the strata of fluvial facies are between 10$^{−2}$ A/m and 10$^{−1}$ A/m, about ten times that of the lacustrine facies. The magnetic minerals are mainly magnetite and hematite, and the magnetic grains are mainly PSD. The characteristic remanence (ChRM) carriers are magnetites. In the alluvial facies, the natural remanence intensities are mostly less than 1 × 10$^{−2}$ A/m. The magnetic minerals of the series are dominated by magnetite and hematite, almost the same as the fluvial facies. But the difference is that most of the stepwise demagnetization can reveal two components and the ChRM carriers are hematites. The magnetic grains are PSD in terms of the hysteresis parameters.
Starting Page	544
Ending Page	554
Page Count	11
File Format	PDF
ISSN	10069313
Journal	Science in China Series D: Earth Sciences
Volume Number	50
Issue Number	4
e-ISSN	18622801
Language	English
Publisher	Science in China Press
Publisher Date	2007-01-01
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	Northern flank of Tianshan Mountains Neogene magnetic carrier IRM temperature-dependent susceptibility Day plot Geosciences
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences

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