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Pleistocene deposits in the Southern Egyptian Sahara: lithostratigraphic relationships of sediments and landscape dynamics at Bir Tarfawi

Hill C. L., Schild R.

Studia Quaternaria

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2017

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Vol. 34, Nr 1

23--38

EN

The sedimentological and lithostratigraphic record from north-central Bir Tarfawi documents the presence of Pleistocene basin-fill deposits. Three topographic basins were created as a result of deflation during climate episodes associated with lowering of the local groundwater table. In each case, the three deflational basins or topographic depressions were subsequently filled with sediments; these basin aggradations coincided with changes from arid climate conditions to wetter conditions and a rise in the groundwater table. The oldest and highest sedimentary remnant is associated with Acheulian artifacts and may reflect spring-fed pond and marsh conditions during a Middle Pleistocene wet climate episode. Lithofacies for a lower stratigraphic sequence (the “White Lake”) documents deposition in a perennial lake that varied in extent and depth and is associated with Middle Paleolithic artifacts. A third episode of deflation created a topographic low that has been filled with Late Pleistocene sediments that are associated with Middle Paleolithic artifacts and fossil remains. Lateral and vertical variations in the lithofacies of this basin-fill sequence and the sediments of the “grey-green” lake phases provide a record of changing hydrologic conditions. These hydrologic conditions appear to reflect variations in water-table levels related to groundwater recharge and, at times, local rains.

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Early and Middle Holocene paleoclimates in the South Western Desert of Egypt - the world before unification

Schild R., Wendorf F

Studia Quaternaria

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2013

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Vol. 30, Nr 2

125--133

EN

In the field seasons of 1990 to 2008 the Combined Prehistoric Expedition conducted an extensive archaeological, archaeozoological, archaeobotanical and geomorphological field work at more than a hundred sites in the Nabta, Kiseiba, El Kortain, Gebal El Beid, Gebel Ramlah and Berget El Sheb Areas, South Western Desert of Egypt. The research has helped to develop a long chronological sequence of Late Glacial and Holocene climatic changes in the region. The climatic sequence has been supported by more than 300 14C and OSL assays that permitted to place most of the climatic events in a firm chronological frame.

3

The Hamburgian settlement at Mirkowice: recent results and research perspectives

Kabaciński J., Bratlund B., Kubiak L., Makowiecki D., Schild R., Tobolski K.

Folia Quaternaria

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1999

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nr 70

211-238

EN

In the early 1990s another Hamburgian settlement was discovered in the northern part of the Polish Plain - the most eastern and northern settlement known up to now. The paper discusses initial results of the international research program that was built up around this discovery: (1) stratigraphy and geomorphology of the site; (2) general characteristic of the lithic industry, and (3) faunal remains. The site at Mirkowice creates an exceptional situation for modern environmental studies of the Late Glacial, including reconstruction of plant and animal assemblages of that times and proper correlation of geological and geomorphological processes of the area with the human occupation. Altogether, the Mirkowice project has a research potential to be a benchmark for a modern chronostratigraphy of the Late Glacial in the Lowland.

4

Stratigraphy, palaeoecology and radiochronology of the site of Całowanie

Schild R., Tobolski K., Kubiak-Martens L., Pazdur M. F., Pazdur A., Vogel J. C., Stafford T. W. jr

Folia Quaternaria

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1999

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nr 70

239-268

EN

The site of Całowanie is one of the most important, if not the most important, late Lateglacial and early Holocene sites of the North European Plain. It is a multi-level cultural complex composed of over twenty occupational entities, most of which are sealed by mineral and biogenic deposition. The cultural deposits of the site cover a time span from an early Allerod to a late Boreal or from ca. 11,900 to 8,300 years BP (uncalibrated).