In lithic reduction, the striking platform is the point on the proximal portion of a lithic flake on which the detachment blow fell; this may be natural or prepared. Types of striking platforms include:
Cortex, which consists of an area of cortex used as a platform during initial reduction;
Single-faceted, consisting of a flat platform at right angles to the dorsal surface of the flake and most often associated with conchoidal fractures;
Double-faceted, a variety of multifaceted, prepared platform, also characteristically flat and associated with conchoidal fractures;
Multifaceted, with three or more facets to the platform;
Lipped, a platform type resulting from soft hammer biface reduction; and
Crushed, which occurs when the platform was crush beyond easy recognition by the detachment blow.
All Wikipedia text
is available under the
terms of the GNU Free Documentation License
Search Encyclopedia
Search over one million articles, find something about almost anything!
... 2000, there are 5,641 people, 1,755 households, and 1,463 families residing in the town. The population density is 1,533.8/km² (3,985.3/mi²). There are 1,784 ...