Search results
Results from the WOW.Com Content Network
Obsidian artifacts are common at Tell Brak, one of the earliest Mesopotamian urban centers, dating to the late fifth millennium BC. [44] Obsidian was valued in Stone Age cultures because, like flint , it could be fractured to produce sharp blades or arrowheads in a process called knapping .
List of common nouns derived from ethnic group names; List of religious slurs; A list of LGBT slang, including LGBT-related slurs; List of age-related terms with negative connotations; List of disability-related terms with negative connotations; Category:Sex- and gender-related slurs
Obsidian projectile point.. Obsidian is a naturally formed volcanic glass that was an important part of the material culture of Pre-Columbian Mesoamerica.Obsidian was a highly integrated part of daily and ritual life, and its widespread and varied use may be a significant contributor to Mesoamerica's lack of metallurgy.
Opals too thin to produce a "natural" opal may be combined with other materials to form "composite" gems. An opal doublet consists of a relatively thin layer of precious opal, backed by a layer of dark-colored material, most commonly ironstone, dark or black common opal (potch), onyx, or obsidian. The darker backing emphasizes the play of color ...
The analysis of obsidian debitage can reveal whether or not prismatic blade production occurred at a site and, if it had, what stages of production the process included. In other words, the types of manufacturing waste present (e.g., rejuvenation flakes and/or blades, platform rejuvenation flakes, etc.) at a site can inform archaeologists about ...
Common nouns may be divided into count nouns and non-count nouns. English nouns typically have both count and non-count senses, though for a given noun one sense typically dominates. For example, apple is usually countable ( two apples ), but it also has a non-count sense (e.g., this pie is full of apple ).
Obsidian (Transformers), a Transformers character; Obsidian, a character in the animated TV series Trollz; Obsidian, a character in the Cartoon Network series Steven Universe; Obsidian, a synonym for dragonglass, which kills White Walkers and their soldiers in Game of Thrones; Obsidian Order, the fictional Cardassian intelligence agency from ...
Obsidian hydration dating (OHD) is a geochemical method of determining age in either absolute or relative terms of an artifact made of obsidian.. Obsidian is a volcanic glass that was used by prehistoric people as a raw material in the manufacture of stone tools such as projectile points, knives, or other cutting tools through knapping, or breaking off pieces in a controlled manner, such as ...