Fifty years of obsidian hydration dating in archaeology

12-Dec-2016 10:47

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So, take a stroll down memory lane to remember all of our past Word of the Year selections. Satya Yuga is the largest set & other yugas are its subsets.Our Word of the Year choice serves as a symbol of each year’s most meaningful events and lookup trends.It is an opportunity for us to reflect on the language and ideas that represented each year.Ice cores are collected by cutting around a cylinder of ice in a way that enables it to be brought to the surface.Early cores were often collected with hand augers and they are still used for short holes.Soviet ice drilling projects in Antarctica include decades of work at Vostok Station, with the deepest core reaching 3769 m.

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As a result, alternating bands of lighter and darker ice can be seen in an ice core.The proportions of different oxygen and hydrogen isotopes provide information about ancient temperatures, and the air trapped in tiny bubbles can be analysed to determine the level of atmospheric gases such as carbon dioxide.

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