http://opar.unior.it/1294/1/IEAks_UNO_2010_final__report.pdf
Seglamen Area Non-Systematic Surface Collection
In addition to the total, intensive, and selective surface collections that were made in particular locations, a number of cores and other artefacts were collected from the general area of the Seglamen sites, primarily for use as examples to show students and workmen. These comprise 1 chert flake with a convex modified edge that may have resulted from deliberate retouch or from accidental field damage, 1 chert proto-core, 147 x 59 x 55 mm, 2 chert casual/irregular cores, 4 chert multi-platform cores, 5 chert sub-circular plano-convex cores, some of which have had Levallois-style flake removals, 2 chert Levallois-style cores with rectangular plan shapes and 1 with a triangular plan.

The artefacts are 3 fragments of a single copper alloy spatula (see Seg II, Other finds); 1 small ceramic jar with globular body, rounded base, everted continuous rim, coiled vertical handle on the neck and incised horizontal and wavy decoration, brown fine ware with polished outside surface, 15 cm high, 9.3 cm in diameter at the rim, 0.2 cm thick; 1 rounded base of pot; 1 roughly shaped chert polyhedral core or proto-core, 101 x 99 x 69 mm, in fresh condition as to its knapping, but heavily burnt and calcined; 1 single freshly knapped chert fragment, 68 x 52 x 43 mm; 1 irregularly shaped basalt lump, corted with burnished red clay (see Seg II, Other finds); 1 angular quartzite lump, 97 x 82 x 54 mm, maybe a weathered polyhedral core that was subsequently used as a hammerstone.

http://www.syngeo.org/ebkRDRcur.pdf
3.6.1. Geosphere
The solar system formed through the gravitational collapse of a dense molecular cloud. Planets aggregated in the plane of rotation of the solar nebula, as a result of collisions of large and small planetesimals. The growth of the earth was impacted by several giant impacts, one of which most likely resulted in the formation of the moon. The planet continued to grow as a result of planetesimal impacts and cold dust accretion.
Impacts made the earth very hot. Metals formed a protocore. A solid inner irondominated core formed with a fluid overcore. As a result of these processes, a silicate mantle and then a light, floating crust formed. The mantle is a thick, flowing solid on which the oceanic and continental plates float.

http://naim.bg/contentFiles/summary_RP36.pdf
II.2. Research Methodology
The objective that determines the research methodology is to define an explicit and unambiguous characteristic of the flint assemblages and to reconstruct all elements of the production cycle.
The cycle of production of flint artifacts comprises the following elements:
 Selection of appropriate raw material;
 Testing of the raw material (pebbles, flint, nodules, etc.);
 Preparation of the selected piece for the production of a proto-core;
 Production of pre-manufactured parts from the core such as flakes and blades;
 Production of various tools from the pre-manufactured parts by applying various retouch techniques;