ABSTRACT

The Nasera rockshelter is one of the key sites for our understanding of human occupations of East Africa during the Middle to Late Pleistocene. Excavated by L. Leakey and M. Mehlman, the stratigraphy provides a long sequence of Middle Stone Age, Later Stone Age and Pastoral Neolithic periods. In this paper we carry out a technological study of the Early Later Stone Age levels (levels 8 / 9-11) excavated by M. Mehlman. These levels, clearly Later Stone Age, are characterized by a break from the operational schemes of the Middle Stone Age (Levallois/Discoid) and an abundance of bipolar and laminar methods. There are few tools and the backed pieces appear from the most recent of the levels studied (8/9). Following this study, its relationship with the Mumba Industry may need to be revisited.

抽象的

纳赛拉（Nassera）的岩石庇护所是我们了解中更新世晚期至东非人类占领的重要地点之一。地层由L.Leakey和M.Mehlman发掘，提供了中石器时代，后石器时代和田园新石器时代的长序列。在本文中，我们对梅尔曼（M. Mehlman）挖掘出的早期石器时代晚期水平（8 / 9-11级）进行了技术研究。这些水平，显然是晚期石器时代，其特征是与中石器时代（Levallois / Discoid）的操作方案有所不同，并且有大量的双极和层流方法。工具很少，支持的部分来自最新研究的级别（8/9）。进行这项研究之后，可能需要重新考虑其与Mumba工业的关系。