Journal ArticleDOI
Climatic interpretation of the Luochuan and Lingtai loess sections, China, based on changing iron oxide mineralogy and magnetic susceptibility
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TLDR
In this article, a model that relates pedogenic production of hematite and magnetite to precipitation on the Loess Plateau during the last ∼2.6 Ma was proposed.About:
This article is published in Earth and Planetary Science Letters.The article was published on 2004-07-15. It has received 247 citations till now. The article focuses on the topics: Loess & East Asian Monsoon.read more
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Environmental magnetism: Principles and applications
Qingsong Liu,Andrew P. Roberts,Juan C. Larrasoaña,Subir K. Banerjee,Yohan Guyodo,Lisa Tauxe,Frank Oldfield +6 more
TL;DR: In this article, a review of magnetic properties and the environmental processes that give rise to the measured magnetic signal is presented, and the power of environmental magnetism in enabling quantitative environmental interpretations is discussed.
Journal ArticleDOI
Review of recent developments in mineral magnetism of the Chinese loess
TL;DR: In this paper, a review focusing on recent developments in loess magnetism is presented, and the merits and limitations of rock magnetic proxies are carefully evaluated and several currently unsolved problems are addressed.
Journal ArticleDOI
Magnetic enhancement is linked to and precedes hematite formation in aerobic soil
TL;DR: In this article, Maghemite is transformed into hematite, which is the iron oxide that gives red color to soil, and it is shown that the maghemite/hematite ratio is influenced by the particular environment and the degree of soil development.
Journal ArticleDOI
The magnetic properties of Quaternary aeolian dusts and sediments, and their palaeoclimatic significance
TL;DR: For example, the most important magnetic minerals for studies of aeolian dusts are those capable of carrying a magnetic remanence at room temperature, such as haematite and goethite as discussed by the authors.
References
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Journal ArticleDOI
Evidence for general instability of past climate from a 250-kyr ice-core record
Willi Dansgaard,Sigfus J Johnsen,Sigfus J Johnsen,Henrik Clausen,Dorthe Dahl-Jensen,Niels S. Gundestrup,Claus U. Hammer,Christine S. Hvidberg,Jørgen Peder Steffensen,Arny E. Sveinbjörnsdottir,Jean Jouzel,Gerard C. Bond +11 more
TL;DR: In this paper, the authors present a detailed stable isotope record for the full length of the Greenland Ice-core Project Summit ice core, extending over the past 250 kyr according to a calculated timescale, and find that climate instability was not confined to the last glaciation, but appears also have been marked during the last interglacial (as explored more fully in a companion paper), and during the previous Saale-Holstein glacial cycle.
Journal ArticleDOI
Iron Oxide Removal from Soils and Clays by a Dithionite-Citrate System Buffered with Sodium Bicarbonate
TL;DR: In this article, the bicarbonate-buffered Na2S2O4-citrate system was used for removing free iron oxides from latosolic soils, and the least destructive of iron silicate clays.
Book
Minerals In Soil Environments
TL;DR: Minerals in soil environments as mentioned in this paper, a.k.a. Minerals in the soil environment, is a type of soil environment that is suitable for mining in soil.
Book ChapterDOI
Iron oxide removal from soils and clays by a dithionite-citrate system buffered with sodium bicarbonate
O P Mehra,M L Jackson +1 more
TL;DR: In this article, the bicarbonate-buffered Na 2 S 2 O 4 -citrate system was used for removing free iron oxides from latosolic soils, and the least destructive of iron silicate clays.
Journal ArticleDOI
Onset of Asian desertification by 22 Myr ago inferred from loess deposits in China
Zhengtang Guo,William F. Ruddiman,Qingzhen Hao,Huilan Wu,Yansong Qiao,Rixiang Zhu,Shuzhen Peng,Jia Wei,B. Y. Yuan,Tungsheng Liu +9 more
TL;DR: 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.