SYNONYMS OR RELATED TERMS: core CATEGORY: lithics DEFINITION: The block of primary material from which flakes have been removed by percussion for use in tools.
An object, such as a hand-CATEGORY: tool DEFINITION: A hollow tubelike instrument used to collect samples of soils, pollens, and other materials from below the surface. SYNONYMS OR RELATED TERMS: core tablet CATEGORY: artifact DEFINITION: A roughly round slightly wedge-shaped flake of flint with the remains of flake beds around the outside edge.
Such flakes are the product of extending the life of a core that has become uneven or difficult to work but which still has the potential to yield further blades.
Actual samples of ancient atmospheres are trapped in air bubbles within the ice. CATEGORY: artifact DEFINITION: The nucleus from which micro-blades were manufactured.
Usually a small barrel or conical shaped stone artifact with a flat top and one or more fluted surfaces left as scars from the removal of the microblades.
CATEGORY: tool DEFINITION: A device for extracting columns of sediment from the ocean floor.
Deeper cores are taken by the piston corer, which can take samples as long as 20 meters.
Both these activities produce their own distinctive debitage..
These include possessions of the great patrician families of Rome, such as paintings illustrating Dionysiac mysteries, jewels, and magnificent gold and silver household furnishings.
Problems with the technique are the difficulty of correlating oceanic temperature changes with continental glacial and interglacial phases, and the disturbance by animals living on the ocean bottom.