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Latest Obsidian Stories

2014-08-27 20:20:22

Obsidian Ranks No. 217 on the 2014 Inc. 500 WASHINGTON, Aug. 27, 2014 /PRNewswire-iReach/ -- Inc. magazine named Obsidian Analysis, Inc. number 217 on its 33rd annual "Inc. 500", an exclusive ranking of the nation's fastest-growing private companies. Obsidian earns this honor based on its three-year revenue growth of 2,061%, which makes this homeland security and resilience consultancy the fifth fastest-growing company in the District of Columbia from 2010 to 2013. Logo -...

2014-08-05 12:21:23

-LS 460, GS 350, IS 250, ES 350 and RX 350 Special Editions TORRANCE, Calif., Aug. 5, 2014 /PRNewswire/ -- Nothing is ever black or white. In the case of The Crafted Line by Lexus, it's an Ultra White and Obsidian exterior matched to a two-tone black and red interior. The Crafted Line offers customers striking style with substance for 2015 model year, plus a two-piece TUMI duffel bag set exclusively designed to complement the elegance and sporty features these models offer....

2013-10-29 23:37:06

The Search for Dr. Obsidian is currently being created in LightWave 11 on a dual-boot Power Mac; the director plans to migrate to LightWave 11.6 software to take advantage of new features like support for 3D printing, the ability to create or use existing CgFX shaders, Spline Control, a surface-baker camera, stereoscopic review capabilities, and Raycasting technology to make an object aware of its surroundings in an animation. Burbank, California (PRWEB) October 29, 2013 Superheroes are...

Ancient Syrians Chose Buying Local Instead Of Importing
2013-10-16 15:02:48

University of Sheffield An archaeologist at the University of Sheffield has found evidence that, contrary to a widely held theory, ancient Syrians made their stone tools locally instead of importing finished tools from Turkey. The discovery, newly published online in Journal of Archaeological Science, has implications for our understanding of how early cities developed in these regions and how the geographic origins of raw materials affect developing states. During the Early Bronze...

New Sourcing Technique Detects Obsidian In Seconds
2013-09-10 09:27:02

April Flowers for redOrbit.com - Your Universe Online Obsidian is a naturally occurring volcanic glass with a smooth, hard surface. It is far sharper than a surgical scalpel when fractured, making the glass a highly desirable raw material for crafting stone tools for almost all of human history. Found in East Africa, the earliest obsidian tools are nearly two million years old, and today, doctors still use obsidian scalpels in specialized medical procedures. The chemical composition of...

shutterstock_42049015
2012-09-05 20:36:04

April Flowers for redOrbit.com — Your Universe Online Ancient sites and cultural heritage are under threat in Syria due to the current conflict. An interdisciplinary team of social and earth science researchers hope that this new discovery, which has major implications for understanding the world's first empire, will help to highlight the importance of protecting Syria's heritage. The conflict that has them worried is the Syrian Civil War, also known as the Syrian Uprising. This...

Shifting trade Routes May Have Been Root Cause Of Mayan Decline
2012-05-24 10:44:28

Brett Smith for RedOrbit.com The end of the classic Mayan civilization in the lowlands of Mesoamerica was likely expedited by shifting trade routes that started to bring valuable goods to coastal regions instead of the inland city-states of the ancient Native Americans. While the cause of this decline is still shrouded in mystery, most scholars consider the period of the Maya Collapse to be between the 8th and 9th centuries. During this time, the highly sophisticated societies that...

2009-06-25 12:46:55

U.S. archaeologists are using obsidian flakes left from the carving of tools to answer many questions about early human beings. University of Washington and Smithsonian Institute archaeologists used X-ray fluorescence spectrometers to determine the origin of 131 flakes of obsidian, a volcanic glass, found at 18 sites on eight islands in the Kurils. The flakes were found with other artifacts and dated to 2,500 to 750 years ago. The Kuril Archipelago stretches nearly 800 miles between the...

2009-06-22 13:57:37

Archaeologists have used stone tools to answer many questions about human ancestors in both the distant and near past and now they are analyzing the origin of obsidian flakes to better understand how people settled and interacted in the inhospitable Kuril Islands.Using X-ray fluorescence spectrometers, archaeologists from the University of Washington and the Smithsonian Institution have found the origin of 131 flakes of obsidian, a volcanic glass. These small flakes were discarded after stone...


Latest Obsidian Reference Libraries

Chaitén
2014-08-28 10:38:21

Chaitén is a volcanic caldera that is located in southern Chile that reaches an elevation of 3,681 feet. It is thought that this volcano once held a rhyolite obsidian lava dome that reached 3,156 in height, but this was destroyed after its most recent eruption in 2008. In the past, this volcano has released grey obsidian, which was used by pre-Columbian cultures to make many objects, some of which have been found 250 miles away from the volcano. Chaitén experienced the beginning of a new...

28_7e4b073c7040fee3b2cac319d88d24b9
2005-05-25 18:45:14

Rhyolite is an igneous, volcanic (extrusive) rock, of felsic composition, with aphanitic to porphyritic texture. Mineral assembly is usually quartz, alkali feldspar and plagioclase (in a ratio > 1:2). Biotite and pyroxene are common accessory minerals. Rhyolite can be considered as the extrusive equivalent to the plutonic granite rock. Due to their high content of silica, rhyolite form highly viscous lavas. They can also occur as breccias or in volcanic necks and dikes. Like obsidian,...

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Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'