Dust transport and synoptic conditions over the Sahara–Arabia deserts during the MIS6/5 and 2/1 transitions from grain-size, chemical and isotopic properties of Red Sea cores

Palchan, Daniel; Stein, Mordechai; Almogi‐Labin, Ahuva; Erel, Yigal; Goldstein, Steven L.

doi:10.1016/j.epsl.2013.09.013

Cited by 59 publications

(38 citation statements)

References 65 publications

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“…S1, p b 0.05). The REE patterns of soils from PSA4 were similar to the pattern found in sediments fromthe Red Sea that were deposited during the Pleistocene (Palchan et al, 2013), indicating the origin of these particular sediments is likely fromPSA4 in northern Sahara.…”

Section: Sr and Nd Isotopesmentioning

confidence: 52%

“…The carbonate leachate and the siliciclastic fractions were extracted following the method from Palchan et al (2013). Twenty-seven elements (Al, Fe, Ca, Mg, Mn, Na, K, Rb, Ba, Th, U, La, Ce, Pb, Pr, Sr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) were analyzed by ICP-MS system (Agilent 7500cx).…”

Section: Icp-ms Elemental Analysismentioning

confidence: 99%

“…2.5. Sr and Nd isotopic ratio determinations In order to elute and separate the Sr and Nd fromthe soils, solutions of eight soil samples were passed through resins following the procedure of Palchan et al (2013). Isotopic analysis was carried out using Neptune multi collector mass spectrometer.…”

Section: Op Determinationsmentioning

confidence: 99%

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Elemental and isotopic composition of surface soils from key Saharan dust sources

et al. 2016

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Saharan dust contains significant amount of P, an important macronutrient to all living organisms, which has been shown to exert large effects on nearby and remote ecosystems located across the dust transport pathways. The biological effect of Saharan dust depends on the amount and nature of the P speciation of the dust. However, thus far relatively small numbers of samples frompotential source areas (PSA) has been analyzed. Here we report the P speciation (resin-P, HCl-P, Fe-bound-P and organic-P), the 18OP values, the elemental composition, and the 87Sr/86Sr and 143Nd/144Nd of the fine fraction and bulk soil from 5 important PSAs across Northern Africa. We found the HCl-P concentrations between different source areas were relatively constrained but that these concentrations were higher in the fine fraction, which here is used a surrogate for dust. The 18OP values for soils fromsand dunes varied from15.0 to 21.4 ,which is in the range of phosphate minerals fromsedimentary origin. The 18OP values of soils from dry lakes were significantly higher (24.0 28.5 ), probably since their P is derived from fossilized plankton that lived in the lake as it dried up. The 87Sr/86Sr and Nd values ranged from 0.7219 to 7276 and 12.7 to 14.0 in eastern samples and from 0.7146 to 0.7185 and 11.9 to 13.4 inwestern samples, suggesting a different source for the siliciclastic material of eastern and western samples. Our analysis indicates that the 18OP values are decoupled from the Sr and Nd isotopic systems. Together, the new chemical and isotope data are specific for different PSAs and thus are used for source apportionment purposes. Such data can be used to provide more accurate estimates of the flux of potentially bioavailable P to marine and terrestrial ecosystems. These estimates can be used in global climatemodels to determine themagnitude and distribution of P control on carbon uptake.

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Section: Sr and Nd Isotopesmentioning

confidence: 52%

Section: Icp-ms Elemental Analysismentioning

confidence: 99%

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Elemental and isotopic composition of surface soils from key Saharan dust sources

et al. 2016

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“…Due to the lack of consistent air quality monitoring networks over the African countries, a long-term dust storm climatology study based on particulate matter data is unavailable. However, air quality measurements in this region have been used to examine the Saharan dust events, especially in transport and impact studies [58][59][60]. Figure 2 shows the typical chemical compositions of dust storms observed in the Sahara desert or its closely impacted area.…”

Section: Common Data Sources For Major Desert Regions Sahara Desertmentioning

confidence: 98%

“…Studies of dust activities and impacts of the Arabian Desert are usually combined with Saharan dust [60], since the surrounding regions are affected by both sources. Independent studies of dust storms were also made in Arabian desert regions and it showed different characteristics from the Sahara desert.…”

Section: Middle Eastern Desertsmentioning

confidence: 99%

Mapping the Global Dust Storm Records: Review of Dust Data Sources in Supporting Modeling/Climate Study

Wang

2015

Curr Pollution Rep

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Dust storms, as extreme environmental events, are one of the Earth's major natural hazards. Their impact on socio-economics can range from local urban to (trans-) continental and from minutes to decades, such as the dust bowl of the 1930s in the United States. Research on dust storms can be traced back for several decades as a meteorological extension. Latest technology developments have enabled comprehensive studies on dust storms, including sampling improvement, analytic studies, and numerical modeling. However, inhomogeneity of the data has hampered and sometimes even misguided research on comprehensive understanding of dust storms and exploring their feedbacks with climate. This review will focus on currently available observations of dust activities, which include routine meteorological records, in situ air chemistry observations, and satellite remote sensing. The aim is to show data sources and the status of their usage in a common framework for global dust regions. Emphasis is placed on data continuity and the spatial and temporal coverage of dust storms, since it is anticipated that this brief summary of dust data will benefit modeling and climate studies. Therefore, it must be noted that field campaign data are outside of the scope of the current review, although they play an important role in research and understanding.

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Evidence for sophisticated raw material procurement strategies during the Lower Paleolithic—Hula Valley case study

et al. 2023

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The Hula Valley has two key Acheulian sites: Gesher Benot Ya'aqov (GBY), a large flake Acheulian site with hundreds of basalt bifaces and a significant number of flint handaxes, and Ma'ayan Barukh (MB), where more than 3500 flint handaxes were collected. Over the last one million years, the valley was filled by alluvium and basalt flows, devoid of flint sources suitable for handaxe production. We conducted archaeological and geological surveys combined with an inductively coupled plasma mass spectrometry geochemical study to determine the source(s) of flint, comparing elemental compositions of handaxes from GBY and MB with those of different flint sources using a novel statistical method. The results demonstrate that Hula Valley Acheulian flint handaxes were derived from Eocene flint. For GBY, the nearest Geoarchaeology.

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Dust transport and synoptic conditions over the Sahara–Arabia deserts during the MIS6/5 and 2/1 transitions from grain-size, chemical and isotopic properties of Red Sea cores

Cited by 59 publications

References 65 publications

Elemental and isotopic composition of surface soils from key Saharan dust sources

Elemental and isotopic composition of surface soils from key Saharan dust sources

Mapping the Global Dust Storm Records: Review of Dust Data Sources in Supporting Modeling/Climate Study

Evidence for sophisticated raw material procurement strategies during the Lower Paleolithic—Hula Valley case study

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