The inorganic geochemistry of a peat deposit on the eastern Qinghai-Tibetan Plateau and insights into changing atmospheric circulation in central Asia during the Holocene

Ferrat, Marion; Weiss, Dominik; Spiro, Baruch; Large, David J.

doi:10.1016/j.gca.2012.05.028

Cited by 38 publications

(27 citation statements)

References 101 publications

(134 reference statements)

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“…However, changes in vegetation cover, responding to the generally weaker monsoonal circulation, cannot fully account for the abrupt, intense eolian activity on centennial to millennial timescales. In the northeastern and eastern QTP, wind strength was found to be stronger during the late Holocene than during the early to mid-Holocene [Ferrat et al, 2012;Qiang et al, 2013b]. Therefore, given that the sand-sized particles are entrained and transported for limited distances, wind capacity for sand mobility has to be considered.…”

Section: Geophysical Research Lettersmentioning

confidence: 99%

“…The resulting airborne dust would be dispersed and settle in downwind regions. In fact, significant Holocene dustfall events on centennial to millennial timescales are recorded at various sites [O'Brien et al, 1995;Mayewski and Maasch, 2006;Porter and Zhou, 2006;Yu et al, 2011;Ferrat et al, 2012;An et al, 2012] and are thought to be linked to the cold phases at high latitudes, despite some difference in timings. Thus, our results provide important information on dust emissions in the dust source area and are a useful record of Asian dust variability on millennial timescales [Porter and Zhou, 2006;Yu et al, 2011].…”

Section: Geophysical Research Lettersmentioning

confidence: 99%

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Holocene record of eolian activity from Genggahai Lake, northeastern Qinghai‐Tibetan Plateau, China

Qiang

Liu

Jin

et al. 2014

Geophysical Research Letters

104

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The history of dust emission and eolian activity in dust source areas remains unclear due to the scarcity of geological archives. Grain-size data from Genggahai Lake on the northeastern Qinghai-Tibetan Plateau show that sand-sized particles in the lake sediments were transported primarily by strong winds to the lake and therefore can be used as a proxy for eolian activity. Eolian activity was weak from 10.3 to 6.3 ka, which may be a response to increased vegetation cover due to the strengthened Asian summer monsoon. In contrast, eolian activity occurred episodically when the summer monsoon weakened. The abrupt, intense sand deposition events are likely to have resulted from strong wind regimes, in turn linked to cooling events in the North Atlantic. Our results suggest that changes in atmospheric circulation patterns may have strongly affected the moisture balance and wind strength in the dust source area and hence dust emissions.

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Section: Geophysical Research Lettersmentioning

confidence: 99%

Section: Geophysical Research Lettersmentioning

confidence: 99%

Holocene record of eolian activity from Genggahai Lake, northeastern Qinghai‐Tibetan Plateau, China

Qiang

Liu

Jin

et al. 2014

Geophysical Research Letters

104

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“…During the following decades, studies were focused on peat deposition (Sun et al, 2001), peatland coverage (Fan, 1987), and peat storage (Sun, 1992;Wang et al, 1992), etc. Recently, many studies tried to discuss Holocene climate change of the QTP based on peat records of Zoige (Wang, 1987;Schlütz and Lehmkuhl, 2009;Zhao et al, 2011;Zheng et al, 2011;Ferrat et al, 2012;Yu et al, 2012;Guo et al, 2013). Previous studies estimated that Zoige peatlands deposited 1.9e2.9 Pg peat (Sun, 1992;Wang et al, 1992), not including the buried peat.…”

Section: Introductionmentioning

confidence: 99%

The carbon stock of alpine peatlands on the Qinghai–Tibetan Plateau during the Holocene and their future fate

Chen

Yang

Peng

et al. 2014

Quaternary Science Reviews

132

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“…Most of the latter focused on either on Hg [24,25] or Pb [26,27]. Another two emerging studies used inorganic geochemistry of the peat record to reconstruct the history of atmospheric dust fluxes, and focused on major lithogenic elements such as Al, Ca, Fe, Mg and Ti and other trace elements such as rare earth elements (REE), Sc, Y and Th [28,29].…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Deposition History of Trace Metals and Metalloids for the Last 200 Years Recorded by Three Peat Cores in Great Hinggan Mountain, Northeast China

et al. 2015

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A large number of studies on trace metals and metalloids (TMs) accumulations in peatlands have been reported in Europe and North America. Comparatively little information is available on peat chronological records of atmospheric TMs flux in China. Therefore, the objective of our study was to determine the concentrations and accumulation rates (ARs) of TMs in Motianling peatland from Great Hinggan Mountain, northeast China, and to assess these in relation to establish a historical profile of atmospheric metal emissions from anthropogenic sources. To meet these aims we analyzed 14 TMs (As, Ba, Cd, Co, Cr, Cu, Mo, Ni, Pb, Sr, Sb, Tl, and Zn) and Pb isotopes ( Pb ratio close to 1.9. ARs and enrichment factors (EFs) of TMs suggested enhanced metal concentrations near the surface of the peatland (in peat layers dated from the 1980s) linked to an increasing trend since the 2000s. This pollution pattern is also fingerprinted by the Pb isotopic composition, even after the ban of leaded gasoline use in China. Emissions from coal and leaded gasoline combustions in northern China are regarded as one of the major sources of anthropogenic Pb input in this region; meanwhile, the long-distance transportation of Pb-bearing aerosols from Mongolia should be also taken into consideration. The reconstructed history of TMs' pollution over the past ca. 200 years is in agreement with the industrial development in China and clearly illustrates the influence of human activities on local rural environments. This study shows the utility of taking multi-cores to show the heterogeneity in peat accumulation and applying PCA, EF and Pb isotope methods in multi-proxies analyses for establishing a high resolution geochemical metal record from peatland.

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The inorganic geochemistry of a peat deposit on the eastern Qinghai-Tibetan Plateau and insights into changing atmospheric circulation in central Asia during the Holocene

Cited by 38 publications

References 101 publications

Holocene record of eolian activity from Genggahai Lake, northeastern Qinghai‐Tibetan Plateau, China

Holocene record of eolian activity from Genggahai Lake, northeastern Qinghai‐Tibetan Plateau, China

The carbon stock of alpine peatlands on the Qinghai–Tibetan Plateau during the Holocene and their future fate

Atmospheric Deposition History of Trace Metals and Metalloids for the Last 200 Years Recorded by Three Peat Cores in Great Hinggan Mountain, Northeast China

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