Holocene environmental changes in the central Inner Mongolia, based on single-aliquot-quartz optical dating and multi-proxy study of dune sands

Sun, Jimin; Li, Sheng‐Hua; Han, Peng; Chen, Yongye

doi:10.1016/j.palaeo.2005.09.016

Cited by 135 publications

(91 citation statements)

References 29 publications

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“…); e) lower quartz/feldspars ratios; and f) less weathering of dust minerals. None of these features are typical for material from the desert and sandy lands (Chen et al, 1998;Sun et al, 2006). Additionally, the REE pattern of the 2006 Beijing dust differs significantly from the surface materials of the desert and sandy land in middle and western Inner Mongolia (Yang et al, 2007).…”

Section: Provenance Of Dustmentioning

confidence: 99%

Heavy dust fall in Beijing, on April 16-17, 2006: Geochemical properties and indications of the dust provenance

Feng

Zhu

et al. 2008

Geochem. J.

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A heavy dust fell in Beijing on April [16][17] 2006. The dust storm formed in middle and western Inner Mongolia, China, under a strong Mongolian Cyclone. During the dust fall, the near-surface wind speed was insignificant in Beijing. The minimal wind speed at ground level indicates that the dust must have been transported by upper northwestern winds, and the local dust of Beijing contributed little to dust fall. The lack of a contribution from local dust differed from previous dust fall events in Beijing. Therefore, this dust fall provides good information on the dust source. Dust samples colleted during this event and Pleistocene loess samples from the Beijing area were analyzed for magnetic susceptibility, bulk particle and quartz grain size distributions, bulk particle and quartz micro-textures, mineralogy, carbonate content, major element concentrations, trace element and rare earth element (REE) concentrations, and the oxygen isotope composition of quartz. The results indicate the following. (1)

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Section: Provenance Of Dustmentioning

confidence: 99%

Heavy dust fall in Beijing, on April 16-17, 2006: Geochemical properties and indications of the dust provenance

Feng

Zhu

et al. 2008

Geochem. J.

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“…3) which implies the lowest biomass in a dry episode. Sun et al (2006) also studied the Holocene eolian deposits at two sites on the eastern boundary of the Mu Us Desert, JJ and TYG, and one site at the Hobq Desert, KB (see Fig. 1 for locations).…”

Section: Dry Conditions and Eolian Activities In The Early Holocenementioning

confidence: 99%

“…Over the last decade, the development of the single-aliquot regenerative-dose (SAR) technique (Murray and Wintle, 2000) has enabled the wide application of OSL dating of sediments. Particularly, OSL dating has been successfully applied to reconstruct the timing of past environmental changes in arid and semi-arid regions in north China in the last few years (Li et al, 2002;Li and Sun, 2006;Sun et al, 2006;Yang et al, 2006;Li et al, 2007;Lu et al, 2007;Zhou et al, 2009). Isochron dating using different grain sizes of potassium rich (K) feldspar has been developed in recent years (Li et al 2008b).…”

Section: Introductionmentioning

confidence: 99%

Holocene environmental changes in central Inner Mongolia revealed by luminescence dating of sediments from the Sala Us River valley

Sun

2011

The Holocene

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Luminescence dating of the fluvial and lacustrine sediments from the Sala Us River valley at the south edge of the Mu Us Desert, central Inner Mongolia, is reported. The study region lies in the northwestern marginal zone of the east Asian summer monsoon and is sensitive to climate change. The dating results combined with environmental proxies indicate that the Holocene Climate Optimum period, took place from 8.5 to 5 ka ago and was marked by lake development. After ~5 ka ago, the region became arid, as inferred from lake regression and fluvial activity. Deposition of fluvial sediments lasted from ~5 ka to ~2 ka ago. At about 2 ka ago, incision of the Sala Us River was initiated into the underlying sediments, with a down-cutting rate of ~3–4 cm/yr. Since 2 ka ago, human activities also played an important role in causing environmental change in the region.

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“…The deserts in northern China extend from central Asia and include most of the dry lands located in the marginal zone of the East Asian summer monsoon (EASM), where the vegetation ecosystem and the desert distribution are highly sensitive to climate changes [Lu et al, 2005;Sun et al, 2006]. There are several reconstructions of the desert distribution in China during the mid-Holocene [i.e., Dong et al, 1997;Sun et al, 1998;Jin et al, 2001;Lu et al, 2013;Yang et al, 2013], and they generally agree that the deserts underwent a sharp contraction during the mid-Holocene compared to the present day.…”

Section: Introductionmentioning

confidence: 99%

Distribution and vegetation reconstruction of the deserts of northern China during the mid‐Holocene

Qin

Guo

et al. 2014

Geophysical Research Letters

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Desertification is potentially a serious threat to society, and therefore, it is critical to understand how deserts may respond to future climate change. The mid-Holocene (6 ± 0.5 14 C ka) was warmer than present, and the distribution of deserts at this time may have implications for understanding their response to future warming. Here we reconstruct the distribution of deserts in northern China during the mid-Holocene by combining data on vegetation type and the sedimentary facies of aeolian deposits. The results demonstrate that during the mid-Holocene, the deserts retreated northwestward to the location of the modern 300 mm isohyet. Most of the Eastern Desert was stabilized with steppe or forest-steppe vegetation, whereas the Western Desert exhibited no significant change and remained mobile, occupied by desert vegetation. The deserts in northern China were greatly reduced during the mid-Holocene because of the enhancement of the East Asian summer monsoon in a warmer climate than today.

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Holocene environmental changes in the central Inner Mongolia, based on single-aliquot-quartz optical dating and multi-proxy study of dune sands

Cited by 135 publications

References 29 publications

Heavy dust fall in Beijing, on April 16-17, 2006: Geochemical properties and indications of the dust provenance

Heavy dust fall in Beijing, on April 16-17, 2006: Geochemical properties and indications of the dust provenance

Holocene environmental changes in central Inner Mongolia revealed by luminescence dating of sediments from the Sala Us River valley

Distribution and vegetation reconstruction of the deserts of northern China during the mid‐Holocene

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