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Edziza obsidian found in coastal areas of southeast Alaska. Edziza obsidian is a naturally formed volcanic glass found at the Mount Edziza volcanic complex in northwestern British Columbia, Canada. It occurs in at least four geological formations of the volcanic complex and was widely used by indigenous peoples during the pre-Columbian era.
[20]: 24 Black Point, today on the north shore of Mono Lake, is a flattened volcanic cone of basaltic debris that formed under the surface of a much deeper Mono Lake about 13,300 years ago, during the most-recent glacial period. [22]: 53 Several eruptive episodes from 1,600 to 270 years before present in Mono Lake formed Negit Island.
The emplacements of Obsidian Butte and Red Hill probably occurred within a short time — less than five centuries apart. [55] Based on C-14 dating of present Obsidian Butte artifacts, it has been found that the interval from which these were harvested was between 510 BCE to 640 CE further signifying at which time the Obsidian Butte was accessible.
Obsidian has also been found in Gilat, a site in the western Negev in Israel. Eight obsidian artifacts dating to the Chalcolithic Age found at this site were traced to obsidian sources in Anatolia. Neutron activation analysis (NAA) on the obsidian found at this site helped to reveal trade routes and exchange networks previously unknown. [52]
A 34-year-old man was found alive in a California wooded area after he was heard calling for help Thursday, nine days after he was last seen, officials said.
A rarely seen deep sea fish resembling a serpent was found floating dead on the ocean surface off the San Diego coast and was brought ashore for study, marine experts said. The silvery, 12-foot ...
A mineral grain from a meteorite preserved evidence that water was present on Mars 4.45 billion years ago, and it may have created hot springs habitable for life.
In fact, the mountains are named for the numerous deposits of obsidian found on their slopes. [ 2 ] [ 8 ] [ 24 ] There is a wide variety of high-quality obsidian found in the area including jet black, brown, green, red fire, pumpkin, mahogany, midnight lace, rainbow, gold sheen, silver sheen, and snowflake as well as several double flow varieties.