@misc{Chmielewski_Waldemar_(1924–2004)_The_1987,
 author={Chmielewski, Waldemar (1924–2004)},
 volume={34},
 editor={Bałdyga, Jerzy. Tł.},
 copyright={Rights Reserved - Restricted Access},
 address={Wrocław},
 journal={Przegląd Archeologiczny},
 howpublished={online},
 year={1987},
 publisher={Polska Akademia Nauk. Instytut Historii Kultury Materialnej},
 language={eng},
 abstract={This paper describes 11 archaeological sites discovered in the clifs of Atbara river valley near Khashm el Girba and site in the clif of Blue Nile river valley in Abu Hugar. The author discusses their stratigraphy and lithic assemblages. The Acheulian assemblages in Atbara river valley are most numerous, some contain artifacts in several superimposed layers. The oldest layer on the 102 site does not contain Acheulian handaxes but Abbevilian one and many chopper and chopping tools and proto cleavers. Among the younger Acheulian assemblages the Levalloisian technik is well represented. On one site the Stillbay assemblage has been discovered Similar artifacts were found in Abu Hugar. On the surface of the middle terrace of the Atbara river the early Holocene assemblages were found with Eburonian typological elements as well as one assemblage containing microlits similar to those known from Nile valley in Wadi Haifa region and from Sahara. Discussing the stratigraphy of the deposits of boths rivers author distinguished 8 sedimentary units (series). He thinks that they were formed as the huge river's cone deposits of Atbara and Blue Nile during the Middle and Upper Pleistocene and finished by one late Pleistocene erosional episode and Holocene sequence of terraces},
 type={Text},
 title={The Pleistocene and early Holocene archaeological sites on the Atbara and Blue Nile in Eastern Sudan},
 keywords={Paleolithic -- Sudan, Paleolithic archaeological sites -- Sudan, Paleolithic flint objects, stratigraphy of archaeological sites},
}