Arid
DOI10.5194/cp-13-897-2017
Periodic input of dust over the Eastern Carpathians during the Holocene linked with Saharan desertification and human impact
Longman, Jack1; Veres, Daniel2; Ersek, Vasile1; Salzmann, Ulrich1; Hubay, Katalin3; Bormann, Marc4; Wennrich, Volker5; Schaebitz, Frank4
通讯作者Longman, Jack ; Veres, Daniel
来源期刊CLIMATE OF THE PAST
ISSN1814-9324
EISSN1814-9332
出版年2017
卷号13期号:7页码:897-917
英文摘要

Reconstructions of dust flux have been used to produce valuable global records of changes in atmospheric circulation and aridity. These studies have highlighted the importance of atmospheric dust in marine and terrestrial biogeochemistry and nutrient cycling. By investigating a 10 800-year-long paleoclimate archive from the Eastern Carpathians (Romania) we present the first peat record of changing dust deposition over the Holocene for the CarpathianBalkan region. Using qualitative (X-ray fluorescence (XRF) core scanning) and quantitative inductively coupled plasma optical emission spectrometer(ICP-OES) measurements of lithogenic (K, Si, Ti) elements, we identify 10 periods of major dust deposition between 9500-9200, 8400-8100, 7720-7250, 6350-5950, 5450-5050, 4130-3770, 34502850, 2000-1450, 800-620, and 60 cal yr BP to present. In addition, we used testate amoeba assemblages preserved within the peat to infer local palaeohydroclimatic conditions. Our record highlights several discrepancies between eastern and western European dust depositional records and the impact of highly complex hydrological regimes in the Carpathian region. Since 6100 cal yr BP, we find that the geochemical indicators of dust flux have become uncoupled from the local hydrology. This coincides with the appearance of millennial-scale cycles in the dust input and changes in geochemical composition of dust. We suggest that this is indicative of a shift in dust provenance from local-regional (likely loess-related) to distal (Saharan) sources, which coin-cide with the end of the African Humid Period and the onset of Saharan desertification.


类型Article
语种英语
国家England ; Romania ; Hungary ; Germany
收录类别SCI-E
WOS记录号WOS:000405777200001
WOS关键词INTERTROPICAL CONVERGENCE ZONE ; CLIMATE VARIABILITY ; ROMANIAN CARPATHIANS ; AFRICAN DUST ; DESERT DUST ; PEAT BOG ; MEDITERRANEAN CLIMATE ; CULTURAL RESPONSES ; SOLAR VARIABILITY ; CIOMADUL VOLCANO
WOS类目Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向Geology ; Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/198135
作者单位1.Northumbria Univ, Dept Geog, Newcastle Upon Tyne, Tyne & Wear, England;
2.Romanian Acad, Inst Speleol, Clinicilor 5, Cluj Napoca, Romania;
3.Hungarian Acad Sci, Inst Nucl Res, Hertelendi Lab Environm Studies, Bem Ter 18-C, H-4026 Debrecen, Hungary;
4.Univ Cologne, Inst Geog Educ, D-50931 Cologne, Germany;
5.Univ Cologne, Inst Geol & Mineral, D-50674 Cologne, Germany
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GB/T 7714
Longman, Jack,Veres, Daniel,Ersek, Vasile,et al. Periodic input of dust over the Eastern Carpathians during the Holocene linked with Saharan desertification and human impact[J],2017,13(7):897-917.
APA Longman, Jack.,Veres, Daniel.,Ersek, Vasile.,Salzmann, Ulrich.,Hubay, Katalin.,...&Schaebitz, Frank.(2017).Periodic input of dust over the Eastern Carpathians during the Holocene linked with Saharan desertification and human impact.CLIMATE OF THE PAST,13(7),897-917.
MLA Longman, Jack,et al."Periodic input of dust over the Eastern Carpathians during the Holocene linked with Saharan desertification and human impact".CLIMATE OF THE PAST 13.7(2017):897-917.
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