Data


Found 211 datasets

Datasets Project Group Resources

Paleoclimate Modeling and Aeolian Dust as Climate Proxy - Workshop E6

Abstract collection and program of the CRC806 Workshop organized by Project E6 on 13 - 14 November 2014 at Pohligstraße 3.
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Aquatic community response in a groundwater-fed desert lake to Holocene desiccation of the Sahara doi Spatial

The finely laminated sediment record of a permanent, hypersaline, desert oasis lake in the Ounianga region of northeastern Chad presents a unique opportunity to document the hydrological evolution of this groundwater-fed aquatic ecosystem during mid- and late-Holocene desiccation of the Sahara. In this study we reconstruct long-term changes in zoobenthos and zooplankton communities of Lake Yoa as their early-Holocene freshwater habitat changed into the hypersaline conditions prevailing today. Chironomid...
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Response to Comment by Brovkin and Claussen on “Climate-Driven Ecosystem Succession in the Sahara: The Past 6000 Years” doi

The Lake Yoa record and archaeological data provide adequate evidence that mid-Holocene aridification did not occur abruptly across all of North Africa. Modeling results on the issue of abrupt versus gradual desiccation of the Sahara are sufficiently diverse that paleoecological data from a continuous natural archive can usefully guide the evaluation of model parameters responsible for this diversity.
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Sedimentation changes in a complete Holocene lacustrine record in the Sahara: Varve thickness, seasonality and event layers – Problems of identification, interpretation and chronology. Spatial

Lake Yoa (19.03°N, 20.31°E, 380 m a.s.l.) is a groundwater-fed lake in the hyperarid eastern Sahara halfway between the Tibesti Mountains and the Ennedi plateau. Kröpelin et al. (2008) revealed that the bottom sediments contain a unique archive of climatic and environmental change in the Earth´s major desert. The 7.5 m sediment record of OUNIK03/04 which covers 6,100 years has been extended to a maximum drill depth of 15.7 m during a 2010 coring campaign within the framework of the Collaborative...
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Seen in der Sahara doi

Große Wasserflächen inmitten der Wüste sind nicht nur ein Naturspektakel, sondern auch ein hochpräzises Umweltarchiv. Die aus ihnen gewonnenen Sedimente dokumentieren die Klimaentwicklung und geben Aufschluss über Staubstürme, Savannenbrände und Vulkanausbrüche. Eine Reise in den Nordosten des Tschad. Von Stefan Kröpelin
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Lakes in the Sahara doi

Large bodies of water in the middle of the desert are not only a natural spectacle, they also contain extremely precise environmental archives. Sediments extracted from these lakes document climate evolution and provide information on dust storms, savannah fires and volcanic eruptions. A journey to north-east Chad By Stefan Kröpelin
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On the luminescence signals of empty sample carriers

Luminescence dating is a leading technique for a large spectrum of Quaternary dating applications. Since the development of automated reader systems, handling great amounts of samples has become possible. A large quantity of data is produced in a short time and a detailed check of every single curve is often impractical. Therefore, it is important to be confident in excluding any kind of unwanted signal contributions, such as those from sample carriers. For commonly used types of steel and aluminium...
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LA SÉQUENCE IBEROMAURISIENNE D'IFRI EL BAROUD : SA PLACE DANS LE PALÉOLITHIQUE SUPÉRIEUR MAROCAIN Spatial

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Profile drawings Ifri el Baroud 1996 S_IV Spatial

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Profile drawings Ifri el Baroud 1995 S_II

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Excavation documentation Ifri el Baroud 1995 / '96

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Etude de la sépulture ibéromaurusienne 1 d’Ifri n’Baroud (Rif oriental, MAROC) / Study of the burial ibéromaurusian 1 of Ifri n’Baroud (Eastern Rif, MOROCCO) Spatial

This article deals with the study of the first burial at the site of Ifri n Baroud (Eastern Rif, Morocco) . It is about an individual primary burial of a tall female adult subject found in a grave. The Iberomaurusian archaeological level to which belongs the burial would be at least 12 500 years old. The grave in question has an oblique bottom. The latter marrowness and the obliqueness of its bottom are evidences that the subject should have been put in a dorsal decubitus position much contracted...
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