Citation:

PANGAEA.960365

Name: Discrete bulk Spectro Xepos XRF data of Holocene lake sediments from Lake Sidi Ali, Middle Atlas, Morocco
Published: 2023-07-13
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Holocene; Itrax; Lake sediment; Palaeolimnology; Spectro Xepos XRF; Western Mediterranean; Xelerate software; XRF core scanner data

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Published: 2023-07-13 • DOI registered: 2023-08-11

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Abstract:

The North African desert margin is considered one of the areas most sensitive to future climate changes. Improved knowledge about Holocene climatic variability and environmental responses on millennial to centennial scale will help to refine scenarios related to future climate changes. This data set presents 198 bulk sample-based Spectro Xepos XRF measurements. Bulk samples from the recovered cores were analysed using a Spectro Xepos X-ray fluorescence instrument. For the XRF sample preparation, air-dried bulk material (4 g) was sieved (2 mm). The sample was then homogenised using a Retsch vibrating mill MM 200. Pressed pellets were produced with a Vaneox press at 20 t for 2 min. The measurements were carried out in a He atmosphere.

Keyword(s):

Holocene; Itrax; Lake sediment; Palaeolimnology; Spectro Xepos XRF; Western Mediterranean; Xelerate software; XRF core scanner data

Related to:

Zielhofer, Christoph; Fletcher, William J; Mischke, Steffen; De Batist, Marc; Campbell, Jennifer F E; Joannin, Sébastien; Tjallingii, Rik; El Hamouti, Najib; Junginger, Annett; Stele, Andreas; Bussmann, Jens; Schneider, Birgit; Lauer, Tobias; Spitzer, Katrin; Strulper, Michael; Brachert, Thomas C; Mikdad, Abdeslam (2017): Atlantic forcing of Western Mediterranean winter rain minima during the last 12,000 years. Quaternary Science Reviews, 157, 29-51, https://doi.org/10.1016/j.quascirev.2016.11.037

Zielhofer, Christoph; von Suchodoletz, Hans; Fletcher, William J; Schneider, Birgit; Dietze, Elisabeth; Schlegel, Michael; Schepanski, Kerstin; Weninger, Bernhard; Mischke, Steffen; Mikdad, Abdeslam (2017): Millennial-scale fluctuations in Saharan dust supply across the decline of the African Humid Period. Quaternary Science Reviews, 171, 119-135, https://doi.org/10.1016/j.quascirev.2017.07.010

Funding:

Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. ZI721/9-3 : Geomorphologische und ökologische Reaktionen auf rasche hydrologische Wechsel im Altasgebirge Marokkos während der letzten 30.000 Jahre / Geomorphological and environmental responses to rapid hydrological changes in the Atlas Mountains (Morocco) during the last 30,000 years

Coverage:

Latitude: 33.068323 * Longitude: -5.000662

Minimum Elevation: 2080.0 m * Maximum Elevation: 2080.0 m

Event(s):

Lake_Sidi_Ali_2012 * Latitude: 33.068323 * Longitude: -5.000662 * Elevation: 2080.0 m * Penetration: 19.63 m * River water depth: 38 m * Location: Middle Atlas, Morocco * Method/Device: Piston corer (ITRAX)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Core section label	Sec label		Schmidt, Johannes		Core segment
2	Age model	Age model	ka	Schmidt, Johannes
3	Depth, corrected	Depth corr	m	Schmidt, Johannes		Mean
4	Sample ID	Sample ID		Schmidt, Johannes
5	Sodium	Na	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
6	Magnesium	Mg2+	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
7	Aluminium	Al	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
8	Silicon	Si	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
9	Phosphorus	P	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
10	Sulfur	S	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
11	Chlorine	Cl	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
12	Potassium	K	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
13	Calcium	Ca	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
14	Titanium	Ti	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
15	Vanadium	V	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
16	Chromium	Cr	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
17	Manganese	Mn	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
18	Iron	Fe	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
19	Cobalt	Co	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
20	Copper	Cu	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
21	Zinc	Zn	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
22	Gallium	Ga	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
23	Germanium	Ge	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
24	Arsenic	As	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
25	Selenium	Se	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
26	Bromine	Br	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
27	Rubidium	Rb	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
28	Strontium	Sr	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
29	Yttrium	Y	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
30	Zirconium	Zr	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
31	Niobium	Nb	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
32	Silver	Ag	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
33	Cadmium	Cd	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
34	Iodine	I	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
35	Caesium	Cs	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
36	Barium	Ba	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
37	Lanthanum	La	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
38	Cerium	Ce	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
39	Neodymium	Nd	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
40	Hafnium	Hf	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
41	Tantalum	Ta	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
42	Mercury	Hg	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
43	Thallium	Tl	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
44	Lead	Pb	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
45	Thorium	Th	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
46	Uranium	U	mg/kg	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive
47	Sum	Sum	%	Schmidt, Johannes	X-ray fluorescence spectrometry, Spectro XEPOS energy disersive

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

9302 data points

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