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Mono Paiutes gathered obsidian from the Mono–Inyo Craters to make sharp tools and arrow points. [38] Unworked obsidian was carried by the Mono Paiutes over passes in the Sierra Nevada to trade with other Native American groups. Chips of Mono–Inyo obsidian can still be found at many ancient mountain campsites. [39]
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]
Geologic map of the Sonoma Volcanics. The Sonoma Volcanics are a geologic formation of volcanic origin that is widespread in Napa and Sonoma counties, California.Most of the formation is Pliocene in age and includes obsidian, perlitic glass, diatomaceous mud, pyroclastic tuff, pumice, rhyolite tuffs, andesite breccias and interbedded volcanic lava flows.
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.
Apache tears are rounded pebbles of obsidian or "obsidianites" composed of black or dark-colored natural volcanic glass, usually of rhyolitic composition and bearing conchoidal fracture. Also known by the lithologic term marekanite , this variety of obsidian occurs as subrounded to subangular bodies up to about 2 in (51 mm) in diameter, often ...
The California oarfish was indeed found just two days before a 4.4 earthquake struck the region and rattled Los Angeles. How U.S. scrambled Kabul withdrawal three years ago.
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 ...
Wildhorse Canyon Obsidian Quarry, in Beaver County, Utah near Milford, Utah, NRHP-listed. An archaeological site which is the only known obsidian flow in Utah used by prehistoric peoples as a source of raw materials.