<p>UPK7: a, c, h, f & i, silcrete; b & j, chert; d, hornfels; e & g, quartzite. Mertenhof: k, silcrete. White arrows on photos show direction of lateral and distal preparation; yellow arrows show direction(s) of preferential blows.</p
<p>1 Core on flake (<i>Kostienki</i>), hornfels. 2 and 3 HP core, hornfels. 4. HP core, dolerite. 5....
Summary characteristics of complete chert, quartzite and silcrete flakes across Holocene units.</p
<p>a., discoidal core from spit XVIII, b.-c., recurrent Levallois cores from spits XIX and XX, respe...
<p>Distribution of artefacts in the main area at UPK7, with a focus on silcrete (white circles), uni...
<p>Schematic depiction of the three Nubian core types following [<a href="http://www.plosone.org/art...
<p>a) Ata04-F14-96, bifacial centripetal, Cretaceous chert; b) Ata05-F14-103, unifacial unipolar lon...
International audienceNubian Levallois technology is the defining characteristic of the Middle Paleo...
<p>Non-silcrete artefacts (filled grey circles) and silcrete artefacts (white circles) are shown fro...
<p>A: facetted centripetal disc core on rounded dark red chert from Gorham’s Cave Lower Bioturbated ...
<p>(A) Volcanic, EF-HR, Olduvai Gorge ([<a href="http://www.plosone.org/article/info:doi/10.1371/jou...
<p>Quartzite: 1, 2. Silcrete: 2, 9. Quartz: 4, 5, 6, 7, 8. Layer CM: 3. Layer CJ: 8. Layer CN/CO: 4,...
The discovery of a group of nine incompletely prepared cores in an early Neolithic level at Mehrgarh...
<p>1: Parallel core, bidirectional (dolerite, E2-854); 2: Parallel core, centripetal (dolerite, D3-1...
<p>A. Burin-like core in RB. B (dolerite), D (dolerite) and E (quartzite) discoidal cores in YA2, BY...
Northwest Africa (NWA) 1500 is an ultramafic meteorite dominated by coarse (100-500 micrometers) oli...
<p>1 Core on flake (<i>Kostienki</i>), hornfels. 2 and 3 HP core, hornfels. 4. HP core, dolerite. 5....
Summary characteristics of complete chert, quartzite and silcrete flakes across Holocene units.</p
<p>a., discoidal core from spit XVIII, b.-c., recurrent Levallois cores from spits XIX and XX, respe...
<p>Distribution of artefacts in the main area at UPK7, with a focus on silcrete (white circles), uni...
<p>Schematic depiction of the three Nubian core types following [<a href="http://www.plosone.org/art...
<p>a) Ata04-F14-96, bifacial centripetal, Cretaceous chert; b) Ata05-F14-103, unifacial unipolar lon...
International audienceNubian Levallois technology is the defining characteristic of the Middle Paleo...
<p>Non-silcrete artefacts (filled grey circles) and silcrete artefacts (white circles) are shown fro...
<p>A: facetted centripetal disc core on rounded dark red chert from Gorham’s Cave Lower Bioturbated ...
<p>(A) Volcanic, EF-HR, Olduvai Gorge ([<a href="http://www.plosone.org/article/info:doi/10.1371/jou...
<p>Quartzite: 1, 2. Silcrete: 2, 9. Quartz: 4, 5, 6, 7, 8. Layer CM: 3. Layer CJ: 8. Layer CN/CO: 4,...
The discovery of a group of nine incompletely prepared cores in an early Neolithic level at Mehrgarh...
<p>1: Parallel core, bidirectional (dolerite, E2-854); 2: Parallel core, centripetal (dolerite, D3-1...
<p>A. Burin-like core in RB. B (dolerite), D (dolerite) and E (quartzite) discoidal cores in YA2, BY...
Northwest Africa (NWA) 1500 is an ultramafic meteorite dominated by coarse (100-500 micrometers) oli...
<p>1 Core on flake (<i>Kostienki</i>), hornfels. 2 and 3 HP core, hornfels. 4. HP core, dolerite. 5....
Summary characteristics of complete chert, quartzite and silcrete flakes across Holocene units.</p
<p>a., discoidal core from spit XVIII, b.-c., recurrent Levallois cores from spits XIX and XX, respe...
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